在.net2.0中，实现对gridview删除行时弹出确认对话框的四种方法

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在VS2005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：

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CODE:

<asp:TemplateField ShowHeader=&quot;False&quot;>
<ItemTemplate>
<asp:LinkButton ID=&quot;LinkButton1&quot; runat=&quot;server&quot; CausesValidation=&quot;False&quot; CommandName=&quot;Delete&quot; Text=&quot;删除&quot;></asp:LinkButton>
</ItemTemplate>
最后在<asp:LinkButton>中加入：OnClientClick=&quot;return confirm(’确认要删除吗？’);&quot;

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，

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CODE:

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(&quot;lbtnDelete&quot;);
if (lbtnDelete != null)
{
lbtnDelete.CommandArgument = id.ToString();
lbtnDelete.Attributes.Add(&quot;onClick&quot;, &quot;<script>return confirm(’是否确认删除！’)</script>&quot;);
}
}
}

}

3，先引用System.windwos.Forms,然后在进行处理

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CODE:

using System.Windows.Forms;

protected void gvNewList_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DialogResult result = MessageBox.Show(&quot;确定要删除本行吗？&quot;, &quot;信息提示!&quot;, 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

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CODE:

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(&quot;onclick&quot;, @&quot;javascript:return confirm(’Attenzione: sicuro di voler cancellare?’);&quot;);
}
}
}

-------------------------------------------------------------

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CODE:

<asp:TemplateField ShowHeader=&quot;False&quot;>
<ItemStyle HorizontalAlign=&quot;Center&quot; Width=&quot;16px&quot; />
<ItemTemplate>
<asp:ImageButton ID=&quot;imgDelete&quot; runat=&quot;server&quot; CausesValidation=&quot;False&quot; CommandName=&quot;Delete&quot; ImageUrl=&quot;~/img/ico_elimina.gif&quot; AlternateText=&quot;Cancella data&quot; OnClientClick=&quot;return confirm(’Sicuro di voler cancellare?’);&quot; />
</ItemTemplate>
</asp:TemplateField>

以上方法总结
---------Template 方式 51aspx.com-----------------------------------------------

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CODE:

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