在.net2.0中，怎么样实现对gridview删除行时弹出确认对话框

 1，GridView中如何使用CommandField删除时，弹出确认框?

在.net2005提供的GridView中我们可以直接添加一个CommandField删除列：<asp:CommandField ShowDeleteButton="True" />，完后在它的RowDeleting事件中完成删除。但在多半我们在做这种删除操作时都需要先让操作者再确认下，完后再进行删除，以避免误操作引起的误删除。

可以通过下面方法给GridView删除前加上个确认对话框。

首先，在GridView的属性对框话框中点击“Columns”进入它的“字段”设计器。接着在“字段”设计器中选择以前已加上的那个CommandField“删除”列，这时在它的属性列表下会看到一个“将此它段转换为 TemplateFied”的项，点击将它转换为TemplateFied列。

完后退出该字段设计器，切换到源码视图你会发现该列已由原来的：<asp:CommandField ShowDeleteButton="True" />
变为了：
<asp:TemplateField ShowHeader="False">
                                <ItemTemplate>
                                    <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete"  Text="删除"></asp:LinkButton>
 </ItemTemplate>

最后在<asp:LinkButton>中加入：OnClientClick="return confirm('确认要删除吗？');"

这样点击删除时就会先在客户端弹出“确认要删除吗？”对话框，而原来在RowDeleting事件中写的代码完全不用改变。

2，

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.RowIndex > -1)
{
int id = Convert.ToInt32(GridView1.DataKeys[e.Row.RowIndex].Value);
LinkButton lbtnDelete = (LinkButton)e.Row.FindControl("lbtnDelete");
if (lbtnDelete != null)
{
lbtnDelete.CommandArgument = id.ToString();
lbtnDelete.Attributes.Add("onClick", "<script>return confirm('是否确认删除！')</script>");
}
}
}

}
3，先引用System.windwos.Forms,然后在进行处理.
using System.Windows.Forms;

protected void gvNewList_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DialogResult result = MessageBox.Show("确定要删除本行吗？", "信息提示!", MessageBoxButtons.YesNo, MessageBoxIcon.Question,MessageBoxDefaultButton.Button2,MessageBoxOptions.ServiceNotification);
if (result == DialogResult.Yes)
{
e.Cancel = false;
}
else
{
e.Cancel = true;
}
}
4，添加一个删除列

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
TableCell tc = (TableCell)e.Row.Cells[e.Row.Cells.Count - 1];
for (int i = 0; i < tc.Controls.Count; i += 2)
{
// cerco il controllo ImageButton (ho utilizzato quello)
Object o = tc.Controls[i];
if (o is ImageButton)
{
// controllo trovato!
// ora aggiungo l'evento js onClick per chiedere conferma all'utente
ImageButton lb = (ImageButton) o;
((ImageButton)lb).Attributes.Add("onclick", @"javascript:return confirm('Attenzione: sicuro di voler cancellare?');");
}
}
}
-------------------------------------------------------------
<asp:TemplateField ShowHeader="False">
<ItemStyle HorizontalAlign="Center" Width="16px" />
<ItemTemplate>
<asp:ImageButton ID="imgDelete" runat="server" CausesValidation="False" CommandName="Delete" ImageUrl="~/img/ico_elimina.gif" AlternateText="Cancella data" OnClientClick="return confirm('Sicuro di voler cancellare?');" />
</ItemTemplate>
</asp:TemplateField>

以上方法总结

---------Template way-----------------------------------------------

<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete"
Text="删除" OnClientClick='return confirm("Are you sure you want to delete this record?");'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>

-------------RowDeleting method------------------------------------------------

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
Response.Write("<script>window.confirm('确定删除吗？');</script>");
}

-------------RowDataBound method--------------------------------------------------------------
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
((LinkButton)e.Row.Cells[4].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('确实要删除该记录吗?')");
}

}

-------------------------Total three ways-------------------end-------------------------------

补充：完全代码下使GridView中的删除按钮实现删除提示的功能

首先，HTML代码：

<asp:GridView ID="SubjectGrid" runat="server">
    </asp:GridView>

第二步，初始化GridView Columns：

void Page_Load(Object sender, EventArgs e)
{
    ShowGrid();
}

private void ShowGrid()
        {
            DataTable customerTable = new DataTable("Customers");
            
            grdSubject.AutoGenerateColumns = false;
            grdSubject.ShowHeader = false;
            grdSubject.DataKeyNames = new String[] { "Id" };
            DataControlFieldCollection dcfc = grdSubject.Columns;
            dcfc.Clear();
            BoundField bf;

            bf = new BoundField();
            bf.DataField = "Id";
            bf.Visible = false;
            dcfc.Add(bf);

            bf = new BoundField();
            bf.DataField = "Title";
            dcfc.Add(bf);

            bf = new BoundField();
            bf.DataField = "BeginDate";
            bf.SortExpression = "BeginDate";
            bf.HtmlEncode = false;
            bf.DataFormatString = "{0:yyyy-MM-dd}";
            dcfc.Add(bf);

            bf = new BoundField();
            bf.DataField = "EndDate";
            bf.HtmlEncode = false;
            bf.DataFormatString = "{0:yyyy-MM-dd}";
            dcfc.Add(bf);

            ButtonField selectRow = new ButtonField();
            selectRow.ButtonType = ButtonType.Button;
            selectRow.CommandName = "Select";
            selectRow.Text = "选择";
            dcfc.Add(selectRow);

            ButtonField delRow = new ButtonField();
            delRow.ButtonType = ButtonType.Button;
            delRow.AccessibleHeaderText = "Delete";
            delRow.CommandName = "Delete";
            delRow.Text = "删除";
            delRow.CausesValidation = true;
            dcfc.Add(delRow);

            grdSubject.DataSource = dt.DefaultView;
            grdSubject.DataBind();
        }

第三步：RowDataBound

void grdSubject_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            //判断是否是DataRow
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                //鼠标经过Row时的效果
                e.Row.Attributes.Add("onmouseover", "e=this.style.backgroundColor; this.style.backgroundColor='linen'");
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=e");

                //当开始时间大于现在时间，显示行为蓝色
                if (DateTime.Parse(e.Row.Cells[2].Text) > DateTime.Now)
                {
                    e.Row.BackColor = Color.LightSkyBlue;
                }
                //当结束时间小于现在时间，显示行为灰色
                if (DateTime.Parse(e.Row.Cells[3].Text) < DateTime.Now)
                {
                    e.Row.BackColor = Color.Silver;
                }

                //当点击删除按钮时激活提示
                Button btn = (Button)e.Row.Cells[5].Controls[0];
                btn.Attributes.Add("onclick", "javascript:return confirm('你确认要删除：/"" + e.Row.Cells[1].Text + "/"吗?')");
            }
        }

其中的关键是Button btn=(Button)e.Row.Cells[5].Controls[0]; 即声明此事件是由第6列中的第一个控件调用。

第四步：执行

void grdSubject_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {

        }

        void grdSubject_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            //单击Grid中按钮时发生throw new Exception("The method or operation is not implemented.");
            int selIndex = Convert.ToInt32(e.CommandArgument);
            GridViewRow selectedRow = grdSubject.Rows[selIndex];

            if (e.CommandName == "Select")
            {
                txtSubjectTitle.Text = selectedRow.Cells[1].Text;
                dateBegin.Value = selectedRow.Cells[2].Text;
                dateEnd.Value = selectedRow.Cells[3].Text;

            }
            if (e.CommandName == "Delete")
            {
                Hsf.Touch.Dto.Subject item = new Hsf.Touch.Dto.Subject();
                item.Id = int.Parse(grdSubject.DataKeys[selIndex].Value.ToString());
                try
                {
                    TouchFactory.CreateSubjectManage().Delete(item);
                    //删除成功，清除输入框内容
                    Clear();
                }
                catch (Exception err)
                {
                    ShowMessageBox("删除失败 /n" + err.Message);
                }
            }
            
            ShowGrid();
        }