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：
/// <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：
string[] workType = new string[] { "-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");
}