给GridView添加编号列,怎么实现啊?
<ItemTemplate><asp:Label runat="server" ID="id" Text="<%# this.GridView1.PageIndex * this.GridView1.PageSize + this.GridView1.Rows.Count + 1 %>"></asp:Label></ItemTemplate>

不理解为什么是this.GridView1.PageIndex * this.GridView1.PageSize + this.GridView1.Rows.Count + 1
this.GridView1.Rows.Count返回值是什么啊?为什么要用this.GridView1.Rows.Count

------解决方案--------------------
用这么复杂么？用SQL文加一列绑定还方便
SELECT Row_Number() over(order by ID) as abcd
FROM TABLE
------解决方案--------------------
实现方法：
双击GridView的OnRowDataBound事件；
在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet 
if (e.Row.RowType == DataControlRowType.DataRow)
{
////鼠标经过时，行背景色变 
//e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
////鼠标移出时，行背景色变 
//e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

////当有编辑列时，避免出错，要加的RowState判断 
//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
//{
// ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?')");
//}

}
if (e.Row.RowIndex != -1)
{
int id = e.Row.RowIndex + 1;
e.Row.Cells[0].Text = id.ToString();
}

}

 

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />
<asp:BoundField DataField="员工性别" HeaderText="性别" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<Heade