GridView，Repeater增加自动序号列

有三种实现的方式，

第一种方式,直接在Aspx页面GridView模板列中.这种的缺点是到第二页分页时又重新开始了.

<Columns>         

<asp:TemplateField HeaderText="序号" InsertVisible="False">
              <ItemStyle HorizontalAlign="Center" />
              <HeaderStyle HorizontalAlign="Center" Width="5%" />
             <ItemTemplate>
              <%#Container.DataItemIndex+1%>
            </ItemTemplate>
</asp:TemplateField>

</Columns>

第二种方式分页时进行了计算,这样会累计向下加.

            <asp:TemplateField HeaderText="序号" InsertVisible="False">
              <ItemStyle HorizontalAlign="Center" />
              <HeaderStyle HorizontalAlign="Center" Width="5%" />
             <ItemTemplate>
                 <asp:Label ID="Label2" runat="server" Text='<%# this.MyListGridView.PageIndex * this.MyListGridView.PageSize + this.MyListGridView.Rows.Count + 1%>'/>
            </ItemTemplate>
            </asp:TemplateField>

第三种方式
还有一种方式放在cs代码中,和第二种相似.

    <asp:BoundField HeaderText="序号" >
              <ItemStyle HorizontalAlign="Center" />
              <HeaderStyle HorizontalAlign="Center" Width="5%" />
          </asp:BoundField>

        protected void myGridView_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowIndex != -1)
            {
                int indexID = this.myGridView.PageIndex * this.myGridView.PageSize + e.Row.RowIndex + 1;
                 e.Row.Cells[0].Text = indexID.ToString();
             }
         }

第四种方法

  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" 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" />
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                    </asp:GridView>

这里基本上介绍的已经够用了，详细试试；

Repeater自身就带有这个获取当前行号的属性，而无需程序员绑定这个行号，Container.ItemIndex 就可以获取了，见下示例：

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        行号：<%#Container.ItemIndex %>
    </ItemTemplate>
</asp:Repeater>

如果上面的示例中，Repeater已经绑定了数据，并且数据的至少为一笔记录，那么行号就会显示出来，行号从零开始，如果想改为从1开始，那么可以将以上的代码改为Container.ItemIndex + 1，见如下示例：

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        行号：<%#Container.ItemIndex + 1 %>
    </ItemTemplate>
</asp:Repeater>

就可以了。

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        <%# Container.ItemIndex + 1%>
        <%# (Container as RepeaterItem).ItemIndex + 1%>
    </ItemTemplate>
</asp:Repeater>

赠送一个小技巧：

Repeater数据为空时提示暂无数据

<FooterTemplate>  
       
<asp:Label ID="lblEmpty" Text="暂无数据" runat="server"  Visible='<%#bool.Parse((Repeater1.Items.Count==0).ToString())%>'></asp:Label> 
                
  </FooterTemplate>