EditValueChanged事件，给另外文本框赋值，为什么事件本身的值赋不值

C# Code:

private void txtB_STOR_BIG_EditValueChanged(object sender, EventArgs e)
{
   if (this.IsAddOrEditMode == false) return;//新增修改状态
   
   //在EditValueChanged事件内给其它组件赋值时, 也要给自己赋值
   SetEditorBindingValue(txtB_STOR_BIG,txtB_STOR_BIG.EditValue, true);
   
   //计件入库，包括：镶嵌类、钻石、仿真金、银杯、琉璃摆件、金石摆件、925银、纪念币
   if (txtB_STOR_BIG.EditValue.ToString() == "dd62b958-c793-4093-9a92-f80e054b8c4e")
   {
      SetEditorBindingValue(txtB_STOC_MODE, "0", true);
   }
   else
   {
      SetEditorBindingValue(txtB_STOC_MODE, "1", true);
   }
}

//来源:C/S框架网(www.csframework.com) QQ:1980854898

C# Code:

/// <summary>
/// 给绑定数据源的输入控件赋值
/// </summary>
/// <param name="bindingControl">绑定数据源的组件</param>
/// <param name="value">值</param>
/// <param name="setEditorValue">给控件赋值</param>
protected void SetEditorBindingValue(Control bindingControl, object value, bool setEditorValue)
{
   object temp = null;//空值为null
   if (value != DBNull.Value) temp = value;
   
   //有绑定数据源, 给数据源赋值
   if (bindingControl.DataBindings.Count > 0)
   {
      object dataSource = bindingControl.DataBindings[0].DataSource;
      string field = bindingControl.DataBindings[0].BindingMemberInfo.BindingField;
      if (dataSource is DataTable)
      (dataSource as DataTable).Rows[0][field] = value;
      else
      DataConverter.SetValueOfObject(dataSource, field, value);
   }
   
   //给输入组件的赋值
   if (setEditorValue)
   {
      if (bindingControl is BaseEdit)
      (bindingControl as BaseEdit).EditValue = value;
      else
      DataConverter.SetValueOfObject(bindingControl, "EditValue", value);
   }
}

//来源:C/S框架网(www.csframework.com) QQ:1980854898