C#教程之DevExpress实现GridControl单元格编辑验证的方

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C#教程之DevExpress实现GridControl单元格编辑验证的方

本文实例演示了DevExpress实现GridControl单元格编辑验证的方法，比较实用的功能，具体方法如下：

主要功能代码如下：

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/// <summary>

/// 自定义单元格验证

/// </summary>

/// <param name="view">GridView</param>

/// <param name="e">BaseContainerValidateEditorEventArgs</param>

/// <param name="fieldNameHandler">委托</param>

/// <param name="errorHanlder">委托</param>

/// <param name="errorText">当验证不通过对时候，错误提示信息文字</param>

public static void CustomValidatingEditor(this GridView view, BaseContainerValidateEditorEventArgs e, Predicate<string> fieldNameHandler, Predicate<object> errorHanlder, string errorText)

{

  /*说明

   *在ValidatingEditor事件使用

   *eg:

   *string[] workType = new string[4] { "-1", "关闭但不删除", "启用", "删除" };

   *void gvLampConfig_ValidatingEditor(object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e)

   *{

   * GridView _view = sender as GridView;

   * _view.CustomValidatingEditor(e, fieldName => fieldName.Equals("TLampWorkStatus"), value => !workType.Contains<string>(value.ToString()), "若想设置为不修改，请输入-1即可");

   * }

   */

  if (fieldNameHandler(view.FocusedColumn.FieldName))

  {

 if (errorHanlder(e.Value))

 {

   e.Valid = false;

   e.ErrorText = errorText;

 }

  }

}

代码使用方法如下：

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string[] workType = new string[4] { "-1", "关闭但不删除", "启用", "删除" };

void gvLampConfig_ValidatingEditor(object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e)

{

  GridView _view = sender as GridView;

  _view.CustomValidatingEditor(e, fieldName => fieldName.Equals("TLampWorkStatus"), value => !workType.Contains<string>(value.ToString()), "若想设置为不修改，请输入-1即可");

}

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