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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Text;
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using BP.En;
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using BP.DA;
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namespace BP.Tools
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{
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/// <summary>
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/// 返回信息格式
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public class MethodReturnMessage<T>
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{
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/// <summary>
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/// 是否运行成功
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/// </summary>
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public bool Success { get; set; }
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/// <summary>
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/// 信息
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/// </summary>
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public string Message { get; set; }
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/// <summary>
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/// 返回的数据
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/// </summary>
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public T Data { get; set; }
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}
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public class Entitis2Json
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{
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private volatile static Entitis2Json _instance = null;
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private Entitis2Json() { }
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public static Entitis2Json Instance
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{
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get
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{
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if (_instance == null)
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_instance = new Entitis2Json();
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return _instance;
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}
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}
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/// <summary>
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/// 将实体类转为json List格式数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <returns></returns>
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public static string ConvertEntities2ListJson(Entities ens)
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{
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return Instance.TranslateEntitiesToListJson(ens, null);
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}
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/// <summary>
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/// 将实体类转为json List格式数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="hidenKeys">需要隐藏的列，如：@No@Name</param>
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/// <returns></returns>
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public static string ConvertEntities2ListJson(Entities ens, string hidenKeys)
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{
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return Instance.TranslateEntitiesToListJson(ens, hidenKeys);
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}
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/// <summary>
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/// 将Entitis转换为树形的json
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="rootNo">根节点编号</param>
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/// <returns></returns>
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public static string ConvertEntitis2GenerTree(Entities ens, string rootNo)
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{
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return Instance.TansEntitiesToGenerTree(ens, rootNo);
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}
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/// <summary>
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/// 将Entitis转换为树形的gridjson
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/// </summary>
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/// <param name="ens">树形实体类</param>
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/// <param name="pColumnName">父节点列名</param>
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/// <param name="cColumnName">子节点列名</param>
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/// <param name="ParentNo">父编号</param>
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/// <param name="appendChild">是否加载子节点</param>
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/// <returns>树形的gridjson</returns>
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public static string ConvertEntitis2GridTree(EntitiesTree ens, string pColumnName, string cColumnName, string ParentNo, bool appendChild)
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{
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return Instance.TansEntitiesToGridTree(ens, pColumnName, cColumnName, ParentNo, appendChild);
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}
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/// <summary>
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/// 将实体类转为json格式数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonOnlyData(Entities ens)
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{
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return Instance.TranslateEntitiesToGridJsonOnlyData(ens, 0, null);
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}
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/// <summary>
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/// 将实体类转为json格式数据用于分页
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="totalRows">总行数</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonOnlyData(Entities ens, int totalRows)
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{
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return Instance.TranslateEntitiesToGridJsonOnlyData(ens, totalRows, null);
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}
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/// <summary>
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/// 将实体类转为json格式数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="hidenKeys">需要隐藏的列，如：@No@Name</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonOnlyData(Entities ens, string hidenKeys)
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{
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return Instance.TranslateEntitiesToGridJsonOnlyData(ens, 0, hidenKeys);
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}
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/// <summary>
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/// 将实体类转为json格式数据用于分页
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="totalRows">总行数</param>
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/// <param name="hidenKeys">需要隐藏的列，如：@No@Name</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonOnlyData(Entities ens, int totalRows, string hidenKeys)
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{
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return Instance.TranslateEntitiesToGridJsonOnlyData(ens, totalRows, hidenKeys);
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}
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/// <summary>
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/// 将实体集合类转为json格式 包含列名和数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <returns>Json格式数据</returns>
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public static string ConvertEntitis2GridJsonAndData(Entities ens)
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{
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return Instance.TranslateEntitiesToGridJsonColAndData(ens, 0, null);
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}
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/// <summary>
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/// 将实体集合类转为json格式 包含列名和数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="totalRows">总行数</param>
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/// <returns>Json格式数据</returns>
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public static string ConvertEntitis2GridJsonAndData(Entities ens, int totalRows)
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{
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return Instance.TranslateEntitiesToGridJsonColAndData(ens, totalRows, null);
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}
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/// <summary>
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/// 将实体集合类转为json格式 包含列名和数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="hidenKeys">需要隐藏的列，如：@No@Name</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonAndData(Entities ens, string hidenKeys)
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{
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return Instance.TranslateEntitiesToGridJsonColAndData(ens, 0, hidenKeys);
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}
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/// <summary>
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/// 将实体集合类转为json格式 包含列名和数据
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/// </summary>
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/// <param name="ens">实体集合类</param>
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/// <param name="totalRows">总行数</param>
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/// <param name="hidenKeys">需要隐藏的列，如：@No@Name</param>
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/// <returns></returns>
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public static string ConvertEntitis2GridJsonAndData(Entities ens, int totalRows, string hidenKeys)
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{
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return Instance.TranslateEntitiesToGridJsonColAndData(ens, totalRows, hidenKeys);
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}
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/// <summary>
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/// 将实体类转为json格式
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="hidenKeys">隐藏字段</param>
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/// <returns></returns>
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public string TranslateEntityToJson(BP.En.Entity en, string hidenKeys)
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{
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Attrs attrs = en.EnMap.Attrs;
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StringBuilder append = new StringBuilder();
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append.Append("{");
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foreach (Attr attr in attrs)
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{
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if (!DataType.IsNullOrEmpty(hidenKeys) && hidenKeys.Contains("@" + attr.Key))
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continue;
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string strValue = en.GetValStrByKey(attr.Key);
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if (!DataType.IsNullOrEmpty(strValue) && strValue.LastIndexOf("\\") > -1)
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{
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strValue = strValue.Substring(0, strValue.LastIndexOf("\\"));
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}
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append.Append(attr.Key + ":'" + strValue + "',");
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}
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append = append.Remove(append.Length - 1, 1);
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append.Append("}");
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return ReplaceIllgalChart(append.ToString());
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}
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/// <summary>
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/// 将实体类转为json格式List
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="hidenKeys">隐藏字段</param>
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/// <returns></returns>
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public string TranslateEntitiesToListJson(BP.En.Entities ens, string hidenKeys)
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{
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Attrs attrs = ens.GetNewEntity.EnMap.Attrs;
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StringBuilder append = new StringBuilder();
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append.Append("[");
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foreach (Entity en in ens)
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{
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append.Append("{");
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foreach (Attr attr in attrs)
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{
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if (!DataType.IsNullOrEmpty(hidenKeys) && hidenKeys.Contains("@" + attr.Key))
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continue;
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string strValue = en.GetValStrByKey(attr.Key);
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if (!DataType.IsNullOrEmpty(strValue) && strValue.EndsWith("\\") == true)
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{
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strValue = strValue.Substring(0, strValue.LastIndexOf("\\"));
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}
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strValue = strValue == null ? "" : strValue.Trim();
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append.Append(attr.Key + ":'" + strValue + "',");
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}
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append = append.Remove(append.Length - 1, 1);
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append.Append("},");
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}
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if (append.Length > 1)
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append = append.Remove(append.Length - 1, 1);
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append.Append("]");
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return ReplaceIllgalChart(append.ToString());
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}
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/// <summary>
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/// 将实体类转为json格式
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="hidenKeys"></param>
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/// <returns></returns>
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public string TranslateEntitiesToGridJsonOnlyData(BP.En.Entities ens, int totalRows, string hidenKeys)
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{
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Attrs attrs = ens.GetNewEntity.EnMap.Attrs;
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StringBuilder append = new StringBuilder();
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append.Append("{rows:[");
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foreach (Entity en in ens)
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{
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append.Append("{");
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foreach (Attr attr in attrs)
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{
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if (!DataType.IsNullOrEmpty(hidenKeys) && hidenKeys.Contains("@" + attr.Key))
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continue;
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string strValue = en.GetValStrByKey(attr.Key);
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if (!DataType.IsNullOrEmpty(strValue) && strValue.EndsWith("\\"))
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{
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strValue = strValue.Substring(0, strValue.LastIndexOf("\\"));
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}
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append.Append(attr.Key + ":'" + strValue + "',");
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}
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append = append.Remove(append.Length - 1, 1);
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append.Append("},");
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}
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//长度超过{rows:[才进行截取
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if (append.Length > 7)
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append = append.Remove(append.Length - 1, 1);
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if (totalRows == 0)
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{
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append.Append("],total:");
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append.Append(ens != null ? ens.Count : 0);
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}
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else
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{
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append.Append("],total:" + totalRows);
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}
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append.Append("}");
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return ReplaceIllgalChart(append.ToString());
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}
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/// <summary>
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/// 将实体类转为json格式 包含列名和数据
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="hidenKeys"></param>
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/// <returns></returns>
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public string TranslateEntitiesToGridJsonColAndData(Entities ens, int totalRows, string hidenKeys)
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{
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Attrs attrs = ens.GetNewEntity.EnMap.Attrs;
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StringBuilder append = new StringBuilder();
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append.Append("{");
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//整理列名
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append.Append("columns:[");
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foreach (Attr attr in attrs)
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{
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if (attr.UIVisible == false)
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continue;
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if (!DataType.IsNullOrEmpty(hidenKeys) && hidenKeys.Contains("@" + attr.Key))
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continue;
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if (attr.MyFieldType == FieldType.RefText)
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continue;
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if (attr.IsRefAttr || attr.IsFK || attr.IsEnum)
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{
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append.Append("{");
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append.Append(string.Format("field:'{0}',title:'{1}',width:{2},sortable:true", attr.Key + "Text", attr.Desc, attr.UIWidth * 2));
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append.Append("},");
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continue;
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}
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append.Append("{");
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append.Append(string.Format("field:'{0}',title:'{1}',width:{2},sortable:true", attr.Key, attr.Desc, attr.UIWidth * 2));
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append.Append("},");
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}
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if (append.Length > 10)
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append = append.Remove(append.Length - 1, 1);
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append.Append("]");
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//整理数据
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bool bHaveData = false;
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append.Append(",data:{rows:[");
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foreach (Entity en in ens)
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{
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bHaveData = true;
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append.Append("{");
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foreach (Attr attr in attrs)
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{
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//if (attr.IsRefAttr || attr.UIVisible == false)
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// continue;
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if (attr.MyFieldType == FieldType.RefText)
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continue;
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if (attr.IsRefAttr || attr.IsFK || attr.IsEnum)
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{
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append.Append(attr.Key + "Text:'" + en.GetValRefTextByKey(attr.Key) + "',");
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continue;
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}
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append.Append(attr.Key + ":'" + en.GetValStrByKey(attr.Key) + "',");
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}
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append = append.Remove(append.Length - 1, 1);
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append.Append("},");
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}
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if (append.Length > 11 && bHaveData)
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append = append.Remove(append.Length - 1, 1);
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append.Append("],total:" + totalRows + "}");
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append.Append("}");
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return ReplaceIllgalChart(append.ToString());
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="pColumnName"></param>
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/// <param name="cColumnName"></param>
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/// <param name="ParentNo"></param>
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/// <param name="appendChild"></param>
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/// <returns></returns>
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public string TansEntitiesToGridTree(EntitiesTree ens, string pColumnName, string cColumnName, string ParentNo, bool appendChild)
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{
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StringBuilder stringbuilder = new StringBuilder();
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Attrs attrs = ens.GetNewEntity.EnMap.Attrs;
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stringbuilder.Append("[");
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foreach (EntityTree en in ens)
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{
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stringbuilder.Append("{");
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foreach (Attr attr in attrs)
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{
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string chidstring = TansEntitiesToGridTree(ens, pColumnName, cColumnName, en.GetValStrByKey(cColumnName), appendChild);
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if (!DataType.IsNullOrEmpty(chidstring) && appendChild == true)
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{
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stringbuilder.Append(TranslateEntityToJson(en, ""));
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stringbuilder.Replace('}', ',', stringbuilder.Length - 1, 1);
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stringbuilder.Append("children:");
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stringbuilder.Append(chidstring);
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}
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else
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{
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stringbuilder.Append(TranslateEntityToJson(en, ""));
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stringbuilder.Append(",");
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}
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if (attr.IsRefAttr || attr.IsFK || attr.IsEnum)
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{
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stringbuilder.Append(attr.Key + "Text:'" + en.GetValRefTextByKey(attr.Key) + "',");
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continue;
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}
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stringbuilder.Append(attr.Key + ":'" + en.GetValStrByKey(attr.Key) + "',");
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}
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stringbuilder.Replace(',', ' ', stringbuilder.Length - 1, 1);
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stringbuilder.Append("]},");
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}
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return stringbuilder.ToString();
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}
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/// <summary>
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/// 将实体转为树形
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/// </summary>
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/// <param name="ens"></param>
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/// <param name="rootNo"></param>
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StringBuilder appendMenus = new StringBuilder();
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StringBuilder appendMenuSb = new StringBuilder();
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public string TansEntitiesToGenerTree(Entities ens, string rootNo)
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{
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appendMenus = new StringBuilder();
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appendMenuSb = new StringBuilder();
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EntityTree root = ens.GetEntityByKey(EntityTreeAttr.ParentNo, rootNo) as EntityTree;
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if (root == null)
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|
|
throw new Exception("@没有找到rootNo=" + rootNo + "的entity.");
|
|
|
|
|
|
|
|
|
appendMenus.Append("[{");
|
|
|
appendMenus.Append("'id':'" + root.No + "'");
|
|
|
appendMenus.Append(",'text':'" + root.Name + "'");
|
|
|
appendMenus.Append(",'state':'open'");
|
|
|
// 增加它的子级.
|
|
|
appendMenus.Append(",'children':");
|
|
|
AddChildren(root, ens);
|
|
|
appendMenus.Append(appendMenuSb);
|
|
|
appendMenus.Append("}]");
|
|
|
|
|
|
return ReplaceIllgalChart(appendMenus.ToString());
|
|
|
}
|
|
|
|
|
|
public void AddChildren(EntityTree parentEn, Entities ens)
|
|
|
{
|
|
|
appendMenus.Append(appendMenuSb);
|
|
|
appendMenuSb.Clear();
|
|
|
|
|
|
appendMenuSb.Append("[");
|
|
|
foreach (EntityTree item in ens)
|
|
|
{
|
|
|
if (item.ParentNo != parentEn.No)
|
|
|
continue;
|
|
|
|
|
|
appendMenuSb.Append("{'id':'" + item.No + "','text':'" + item.Name + "','state':'closed'");
|
|
|
EntityTree treeNode = ens.GetEntityByKey(EntityTreeAttr.ParentNo, item.No) as EntityTree;
|
|
|
if (treeNode != null)
|
|
|
{
|
|
|
// 增加它的子级.
|
|
|
appendMenuSb.Append(",'children':");
|
|
|
AddChildren(item, ens);
|
|
|
}
|
|
|
appendMenuSb.Append("},");
|
|
|
}
|
|
|
if (appendMenuSb.Length > 1)
|
|
|
appendMenuSb = appendMenuSb.Remove(appendMenuSb.Length - 1, 1);
|
|
|
appendMenuSb.Append("]");
|
|
|
appendMenus.Append(appendMenuSb);
|
|
|
appendMenuSb.Clear();
|
|
|
}
|
|
|
/// <summary>
|
|
|
/// 去除特殊字符
|
|
|
/// </summary>
|
|
|
/// <param name="s"></param>
|
|
|
/// <returns></returns>
|
|
|
public string ReplaceIllgalChart(string s)
|
|
|
{
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
for (int i = 0, j = s.Length; i < j; i++)
|
|
|
{
|
|
|
|
|
|
char c = s[i];
|
|
|
switch (c)
|
|
|
{
|
|
|
case '\"':
|
|
|
sb.Append("\\\"");
|
|
|
break;
|
|
|
case '\\':
|
|
|
sb.Append("\\\\");
|
|
|
break;
|
|
|
case '/':
|
|
|
sb.Append("\\/");
|
|
|
break;
|
|
|
case '\b':
|
|
|
sb.Append("\\b");
|
|
|
break;
|
|
|
case '\f':
|
|
|
sb.Append("\\f");
|
|
|
break;
|
|
|
case '\n':
|
|
|
sb.Append("\\n");
|
|
|
break;
|
|
|
case '\r':
|
|
|
sb.Append("\\r");
|
|
|
break;
|
|
|
case '\t':
|
|
|
sb.Append("\\t");
|
|
|
break;
|
|
|
default:
|
|
|
sb.Append(c);
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
return sb.ToString();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
namespace BP.DA
|
|
|
{
|
|
|
public class DataTableConvertJson
|
|
|
{
|
|
|
|
|
|
#region dataTable转换成Json格式
|
|
|
/// <summary>
|
|
|
/// dataTable转换成Json格式
|
|
|
/// </summary>
|
|
|
/// <param name="dt"></param>
|
|
|
/// <returns></returns>
|
|
|
public static string DataTable2Json(DataTable dt)
|
|
|
{
|
|
|
StringBuilder jsonBuilder = new StringBuilder();
|
|
|
jsonBuilder.Append("[");
|
|
|
for (int i = 0; i < dt.Rows.Count; i++)
|
|
|
{
|
|
|
jsonBuilder.Append("{");
|
|
|
for (int j = 0; j < dt.Columns.Count; j++)
|
|
|
{
|
|
|
jsonBuilder.Append("\"");
|
|
|
jsonBuilder.Append(dt.Columns[j].ColumnName);
|
|
|
jsonBuilder.Append("\":\"");
|
|
|
jsonBuilder.Append(dt.Rows[i][j].ToString());
|
|
|
jsonBuilder.Append("\",");
|
|
|
}
|
|
|
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
|
|
|
jsonBuilder.Append("},");
|
|
|
}
|
|
|
if (jsonBuilder.Length > 1)
|
|
|
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
|
|
|
jsonBuilder.Append("]");
|
|
|
|
|
|
return jsonBuilder.ToString();
|
|
|
}
|
|
|
/// <summary>
|
|
|
/// 替换特殊字符，避免json解析时报错 秦-2015-5-20
|
|
|
/// </summary>
|
|
|
/// <param name="getText">需要替换的原始字符串</param>
|
|
|
/// <returns></returns>
|
|
|
public static string GetFilteredStrForJSON(string getText, bool checkId)
|
|
|
{
|
|
|
if (checkId)
|
|
|
{
|
|
|
getText = getText.Replace("\n", "");
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
getText = getText.Replace("\n", "ccflow_lover");
|
|
|
}
|
|
|
|
|
|
getText = getText.Replace("\n", "");
|
|
|
getText = getText.Replace("\r", "");
|
|
|
getText = getText.Replace("{", "｛");
|
|
|
getText = getText.Replace("}", "｝");
|
|
|
getText = getText.Replace("[", "【");
|
|
|
getText = getText.Replace("]", "】");
|
|
|
getText = getText.Replace("\"", "”");
|
|
|
getText = getText.Replace("\'", "‘");
|
|
|
getText = getText.Replace("<", "《");
|
|
|
getText = getText.Replace(">", "》");
|
|
|
getText = getText.Replace("(", "（");
|
|
|
getText = getText.Replace(")", "）");
|
|
|
return getText;
|
|
|
}
|
|
|
/// <summary>
|
|
|
/// dataTable转换成Json格式 秦2014年06月23日 17:11
|
|
|
/// </summary>
|
|
|
/// <param name="dt">表</param>
|
|
|
/// <param name="totalRows">总行数</param>
|
|
|
/// <returns></returns>
|
|
|
public static string DataTable2Json(DataTable dt, int totalRows)
|
|
|
{
|
|
|
StringBuilder jsonBuilder = new StringBuilder();
|
|
|
|
|
|
jsonBuilder.Append("{\"rows\":[");
|
|
|
for (int i = 0; i < dt.Rows.Count; i++)
|
|
|
{
|
|
|
jsonBuilder.Append("{");
|
|
|
for (int j = 0; j < dt.Columns.Count; j++)
|
|
|
{
|
|
|
jsonBuilder.Append("\""+dt.Columns[j].ColumnName.ToUpper()+"\"");
|
|
|
jsonBuilder.Append(":");
|
|
|
jsonBuilder.Append("\"" + GetFilteredStrForJSON(dt.Rows[i][j].ToString(), true) + "\"");
|
|
|
jsonBuilder.Append(",");
|
|
|
}
|
|
|
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
|
|
|
jsonBuilder.Append("},");
|
|
|
}
|
|
|
//不存在数据时
|
|
|
if (jsonBuilder.Length > 11)
|
|
|
{
|
|
|
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
|
|
|
}
|
|
|
//jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
|
|
|
if (totalRows == 0)
|
|
|
{
|
|
|
jsonBuilder.Append("],\"total\":0");
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
jsonBuilder.Append("],\"total\":" + totalRows);
|
|
|
}
|
|
|
jsonBuilder.Append("}");
|
|
|
return jsonBuilder.ToString();
|
|
|
}
|
|
|
|
|
|
#endregion dataTable转换成Json格式
|
|
|
|
|
|
#region DataSet转换成Json格式
|
|
|
/// <summary>
|
|
|
/// DataSet转换成Json格式
|
|
|
/// </summary>
|
|
|
/// <param name="ds">DataSet</param>
|
|
|
/// <returns></returns>
|
|
|
public static string Dataset2Json(DataSet ds)
|
|
|
{
|
|
|
StringBuilder json = new StringBuilder();
|
|
|
json.Append("[");
|
|
|
|
|
|
foreach (DataTable dt in ds.Tables)
|
|
|
{
|
|
|
json.Append("{\"");
|
|
|
json.Append(dt.TableName);
|
|
|
json.Append("\":");
|
|
|
json.Append(DataTable2Json(dt));
|
|
|
json.Append("},");
|
|
|
}
|
|
|
|
|
|
if (json.Length > 1)
|
|
|
{
|
|
|
json.Remove(json.Length - 1, 1);
|
|
|
}
|
|
|
|
|
|
json.Append("]");
|
|
|
|
|
|
return json.ToString();
|
|
|
}
|
|
|
#endregion
|
|
|
|
|
|
/// <summary>
|
|
|
/// Msdn
|
|
|
/// </summary>
|
|
|
/// <param name="jsonName"></param>
|
|
|
/// <param name="dt"></param>
|
|
|
/// <returns></returns>
|
|
|
public static string DataTableToJson(string jsonName, DataTable dt)
|
|
|
{
|
|
|
StringBuilder Json = new StringBuilder();
|
|
|
Json.Append("{\"" + jsonName + "\":[");
|
|
|
if (dt.Rows.Count > 0)
|
|
|
{
|
|
|
for (int i = 0; i < dt.Rows.Count; i++)
|
|
|
{
|
|
|
Json.Append("{");
|
|
|
for (int j = 0; j < dt.Columns.Count; j++)
|
|
|
{
|
|
|
Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":\"" + dt.Rows[i][j].ToString() + "\"");
|
|
|
if (j < dt.Columns.Count - 1)
|
|
|
{
|
|
|
Json.Append(",");
|
|
|
}
|
|
|
}
|
|
|
Json.Append("}");
|
|
|
if (i < dt.Rows.Count - 1)
|
|
|
{
|
|
|
Json.Append(",");
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
Json.Append("]}");
|
|
|
return Json.ToString();
|
|
|
}
|
|
|
/// <summary>
|
|
|
/// 根据DataTable生成Json树结构
|
|
|
/// </summary>
|
|
|
/// <param name="tabel">数据源</param>
|
|
|
/// <param name="idCol">ID列</param>
|
|
|
/// <param name="txtCol">Text列</param>
|
|
|
/// <param name="rela">关系字段</param>
|
|
|
/// <param name="pId">父ID</param>
|
|
|
///<returns>easyui tree json格式</returns>
|
|
|
public static string TransDataTable2TreeJson(DataTable tabel, string idCol, string txtCol, string rela, object pId)
|
|
|
{
|
|
|
treeResult = new StringBuilder();
|
|
|
treesb = new StringBuilder();
|
|
|
return GetTreeJsonByTable(tabel, idCol, txtCol, rela, pId);
|
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
|
/// 根据DataTable生成Json树结构
|
|
|
/// </summary>
|
|
|
/// <param name="tabel">数据源</param>
|
|
|
/// <param name="idCol">ID列</param>
|
|
|
/// <param name="txtCol">Text列</param>
|
|
|
/// <param name="rela">关系字段</param>
|
|
|
/// <param name="pId">父ID</param>
|
|
|
///<returns>easyui tree json格式</returns>
|
|
|
static StringBuilder treeResult = new StringBuilder();
|
|
|
static StringBuilder treesb = new StringBuilder();
|
|
|
private static string GetTreeJsonByTable(DataTable tabel, string idCol, string txtCol, string rela, object pId)
|
|
|
{
|
|
|
string treeJson = string.Empty;
|
|
|
string treeState = "close";
|
|
|
treeResult.Append(treesb.ToString());
|
|
|
|
|
|
treesb.Clear();
|
|
|
if (treeResult.Length == 0)
|
|
|
{
|
|
|
treeState = "open";
|
|
|
}
|
|
|
if (tabel.Rows.Count > 0)
|
|
|
{
|
|
|
treesb.Append("[");
|
|
|
string filer = string.Empty;
|
|
|
if (pId.ToString() == "")
|
|
|
{
|
|
|
filer = string.Format("{0} is null", rela);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
filer = string.Format("{0}='{1}'", rela, pId);
|
|
|
}
|
|
|
DataRow[] rows = tabel.Select(filer);
|
|
|
if (rows.Length > 0)
|
|
|
{
|
|
|
foreach (DataRow row in rows)
|
|
|
{
|
|
|
treesb.Append("{\"id\":\"" + row[idCol]
|
|
|
+ "\",\"text\":\"" + row[txtCol]
|
|
|
+ "\",\"state\":\"" + treeState + "\"");
|
|
|
|
|
|
|
|
|
if (tabel.Select(string.Format("{0}='{1}'", rela, row[idCol])).Length > 0)
|
|
|
{
|
|
|
treesb.Append(",\"children\":");
|
|
|
GetTreeJsonByTable(tabel, idCol, txtCol, rela, row[idCol]);
|
|
|
treeResult.Append(treesb.ToString());
|
|
|
treesb.Clear();
|
|
|
}
|
|
|
treeResult.Append(treesb.ToString());
|
|
|
treesb.Clear();
|
|
|
treesb.Append("},");
|
|
|
}
|
|
|
treesb = treesb.Remove(treesb.Length - 1, 1);
|
|
|
}
|
|
|
treesb.Append("]");
|
|
|
treeResult.Append(treesb.ToString());
|
|
|
treeJson = treeResult.ToString();
|
|
|
treesb.Clear();
|
|
|
}
|
|
|
return treeJson;
|
|
|
}
|
|
|
}
|
|
|
} |