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360 lines
11 KiB
Plaintext
360 lines
11 KiB
Plaintext
11 months ago
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using System;
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using System.Collections;
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using System.Data;
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using BP.DA;
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using BP.En;
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using BP.Web;
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using BP.Sys;
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using BP.Difference;
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namespace BP.Sys.Base
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{
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/// <summary>
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/// 表单从表事件基类
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/// 0,集成该基类的子类,可以重写事件的方法与基类交互.
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/// 1,一个子类必须与一个表单模版绑定.
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/// 2,基类里有很多表单运行过程中的变量，这些变量可以辅助开发者在编写复杂的业务逻辑的时候使用.
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/// 3,该基类有一个子类模版，位于:\CCForm\WF\Admin\AttrForm\F001Templepte.cs .
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/// </summary>
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abstract public class FormEventBaseDtl
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{
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#region 要求子类强制重写的属性.
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/// <summary>
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/// 表单编号/表单标记.
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/// 该参数用于说明要把此事件注册到那一个表单模版上.
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/// </summary>
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abstract public string FormDtlMark
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{
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get;
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}
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#endregion 要求子类重写的属性.
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#region 属性/内部变量(表单在运行的时候触发各类事件，子类可以访问这些属性来获取引擎内部的信息).
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/// <summary>
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/// 实体，一般是工作实体
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/// </summary>
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public Entity HisEn = null;
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/// <summary>
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///
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/// </summary>
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public Entity HisEnDtl = null;
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/// <summary>
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/// 参数对象.
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/// </summary>
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private Row _SysPara = null;
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/// <summary>
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/// 参数
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/// </summary>
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public Row SysPara
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{
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get
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{
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if (_SysPara == null)
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_SysPara = new Row();
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return _SysPara;
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}
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set
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{
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_SysPara = value;
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}
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}
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#endregion 属性/内部变量(表单在运行的时候触发各类事件，子类可以访问这些属性来获取引擎内部的信息).
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#region 系统参数
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/// <summary>
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/// 表单ID
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/// </summary>
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public string FK_Mapdata
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{
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get
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{
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return this.GetValStr("FK_MapData");
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}
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}
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/// <summary>
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/// 从表ID
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/// </summary>
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public string MapDtlNo
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{
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get
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{
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return this.GetValStr("FK_MapDtl");
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}
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}
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#endregion
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#region 常用属性.
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/// <summary>
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/// 从表ID
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/// </summary>
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public int OID
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{
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get
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{
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return this.GetValInt("OID");
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}
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}
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/// <summary>
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/// 主表ID
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/// </summary>
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public int OIDOfMainEn
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{
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get
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{
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return this.GetValInt("OIDOfMainEn");
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}
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}
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#endregion 常用属性.
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#region 获取参数方法
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/// <summary>
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/// 事件参数
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/// </summary>
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/// <param name="key">时间字段</param>
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/// <returns>根据字段返回一个时间,如果为Null,或者不存在就抛出异常.</returns>
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public DateTime GetValDateTime(string key)
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{
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try
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{
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string str = this.SysPara.GetValByKey(key).ToString();
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return DataType.ParseSysDateTime2DateTime(str);
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}
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catch (Exception ex)
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{
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throw new Exception("@表单从表事件实体在获取参数期间出现错误，请确认字段(" + key + ")是否拼写正确,技术信息:" + ex.Message);
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}
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}
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/// <summary>
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/// 获取字符串参数
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/// </summary>
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/// <param name="key">key</param>
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/// <returns>如果为Null,或者不存在就抛出异常</returns>
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public string GetValStr(string key)
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{
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try
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{
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return this.SysPara.GetValByKey(key).ToString();
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}
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catch (Exception ex)
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{
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throw new Exception("@表单从表事件实体在获取参数期间出现错误，请确认字段(" + key + ")是否拼写正确,技术信息:" + ex.Message);
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}
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}
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/// <summary>
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/// 获取Int64的数值
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/// </summary>
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/// <param name="key">键值</param>
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/// <returns>如果为Null,或者不存在就抛出异常</returns>
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public Int64 GetValInt64(string key)
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{
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return Int64.Parse(this.GetValStr(key));
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}
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/// <summary>
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/// 获取int的数值
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/// </summary>
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/// <param name="key">键值</param>
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/// <returns>如果为Null,或者不存在就抛出异常</returns>
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public int GetValInt(string key)
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{
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return int.Parse(this.GetValStr(key));
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}
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/// <summary>
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/// 获取Boolen值
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/// </summary>
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/// <param name="key">字段</param>
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/// <returns>如果为Null,或者不存在就抛出异常</returns>
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public bool GetValBoolen(string key)
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{
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if (int.Parse(this.GetValStr(key)) == 0)
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return false;
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return true;
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}
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/// <summary>
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/// 获取decimal的数值
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/// </summary>
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/// <param name="key">字段</param>
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/// <returns>如果为Null,或者不存在就抛出异常</returns>
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public decimal GetValDecimal(string key)
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{
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return decimal.Parse(this.GetValStr(key));
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}
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#endregion 获取参数方法
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#region 构造方法
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/// <summary>
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/// 表单从表事件基类
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/// </summary>
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public FormEventBaseDtl()
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{
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}
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#endregion 构造方法
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#region 节点表单从表事件
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public virtual string FrmLoadAfter()
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{
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return null;
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}
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public virtual string FrmLoadBefore()
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{
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return null;
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}
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#endregion
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#region 要求子类重写的方法(表单从表事件).
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/// <summary>
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/// 表单删除前
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/// </summary>
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/// <returns>返回null,不提示信息,返回信息，提示删除警告/提示信息, 抛出异常阻止删除操作.</returns>
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public virtual string BeforeFormDel()
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{
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return null;
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}
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/// <summary>
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/// 表单删除后
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/// </summary>
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/// <returns>返回null,不提示信息,返回信息，提示删除警告/提示信息, 抛出异常不处理.</returns>
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public virtual string AfterFormDel()
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{
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return null;
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}
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#endregion 要求子类重写的方法(表单从表事件).
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#region 要求子类重写的方法(节点事件).
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/// <summary>
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/// 附件上传前
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/// </summary>
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public virtual string AthUploadeBefore()
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{
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return null;
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}
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/// <summary>
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/// 上传后
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/// </summary>
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public virtual string AthUploadeAfter()
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{
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return null;
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}
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/// <summary>
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/// 从表保存前
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/// </summary>
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public virtual string RowSaveBefore()
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{
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return null;
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}
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/// <summary>
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/// 从表保存后
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/// </summary>
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public virtual string RowSaveAfter()
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{
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return null;
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}
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/// <summary>
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/// 从表del前
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/// </summary>
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public virtual string DtlRowDelBefore()
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{
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return null;
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}
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/// <summary>
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/// 从表del后
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/// </summary>
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public virtual string DtlRowDelAfter()
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{
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return null;
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}
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/// <summary>
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/// 创建工作ID后的事件
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/// </summary>
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/// <returns></returns>
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public virtual string CreateOID()
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{
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return null;
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}
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#endregion 要求子类重写的方法(节点事件).
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#region 基类方法.
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/// <summary>
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/// 执行事件
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/// </summary>
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/// <param name="eventType">事件类型</param>
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/// <param name="en">主表实体</param>
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/// <param name="enDtl">从表实体</param>
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/// <param name="atPara">参数</param>
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/// <returns>返回执行的结果</returns>
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public string DoIt(string eventType, Entity en, Entity enDtl, string atPara)
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{
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this.HisEn = en;
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#region 处理参数.
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if (en == null)
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return null;
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Row r = en.Row;
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try
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{
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//系统参数.
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r.Add("FK_MapData", en.ClassID);
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}
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catch
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{
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r["FK_MapData"] = en.ClassID;
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}
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if (atPara != null)
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{
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AtPara ap = new AtPara(atPara);
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foreach (string s in ap.HisHT.Keys)
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{
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try
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{
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r.Add(s, ap.GetValStrByKey(s));
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}
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catch
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{
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r[s] = ap.GetValStrByKey(s);
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}
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}
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}
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if (BP.Difference.SystemConfig.isBSsystem == true)
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{
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/*如果是bs系统, 就加入外部url的变量.*/
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foreach (string key in HttpContextHelper.RequestParamKeys)
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{
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string val = HttpContextHelper.RequestParams(key);
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try
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{
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r.Add(key, val);
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}
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catch
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{
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r[key] = val;
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}
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}
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}
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this.SysPara = r;
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#endregion 处理参数.
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#region 执行事件.
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switch (eventType)
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{
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case EventListFrm.DtlRowSaveBefore: // 从表-保存前.。
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return this.RowSaveBefore();
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case EventListFrm.DtlRowSaveAfter: // 从表-保存后.。
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return this.RowSaveAfter();
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case EventListFrm.DtlRowDelBefore: // 从表-保存前.。
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return this.DtlRowDelBefore();
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case EventListFrm.DtlRowDelAfter: // 从表-保存后.。
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return this.DtlRowDelAfter();
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default:
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throw new Exception("@没有判断的表单从表事件类型:" + eventType);
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}
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#endregion 执行事件.
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}
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#endregion 基类方法.
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}
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}
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