Custom Delete Button in GridView having confirming function.-优快云博客

本文介绍如何在ASP.NET中为GridView控件添加自定义的删除按钮，并通过客户端JavaScript确认框来确认删除操作。通过继承ButtonField并重写InitializeCell方法实现功能。

Add the follow to web.config

<add tagPrefix="custom" namespace="CustomControl"/>

</controls>
</pages>

Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI.WebControls;

namespace CustomControl
{
    public class DeleteButtonField:ButtonField
    {
        private String ConfirmMsg = "If you want to delete?";
        public DeleteButtonField()
        {
            this.CommandName = "Delete";
            this.Text = "Delete";
        }
        public override void InitializeCell(DataControlFieldCell cell, DataControlCellType cellType, DataControlRowState rowState, int rowIndex)
        {
            base.InitializeCell(cell, cellType, rowState, rowIndex);
            if (cellType == DataControlCellType.DataCell)
            {
                WebControl wc = cell.Controls[0] as WebControl;
                wc.Attributes["onclick"] = String.Format("return confirm('{0}');", ConfirmMsg);
            }
        }
    }
}

and use it like

Code
<asp:GridView ID="GridView1" runat="server">
    <Columns>
        <custom:DeleteButtonField></custom:DeleteButtonField>
    </Columns>
    </asp:GridView>

转载于:https://www.cnblogs.com/jerryhong/archive/2009/02/05/1384590.html