GridView+CheckBox删除记录<ItemTemplate>。。。</ItemTemplate>
前台
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" onpageindexchanging="GridView1_PageIndexChanging"
onrowdeleting="GridView1_RowDeleting"
style="margin-right: 0px"  ShowHeader="False" BorderWidth="0" cellspacing="0" CellPadding="0" Width="100%" >
<PagerSettings FirstPageText="第一页" LastPageText="最后一页" Mode="NextPreviousFirstLast"
NextPageText="下一页" PreviousPageText="上一页" />
<Columns>
<asp:TemplateField HeaderText="修改">
<ItemTemplate>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="20" width="10%" class="but" align="center"><%# DataBinder.Eval(Container, "DataItem.id")%></td>
<td height="20" width="30%" class="but" align="center"><%# DataBinder.Eval(Container, "DataItem.type")%></td>
<td height="20" width="30%" class="but" align="center"><a href='managedept.aspx?id=<%#Eval("id") %>'>修改信息</a> </td>
<td height="20" width="30%" class="but" align="center"><asp:CheckBox ID="CheckBox1" runat="server"/></td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<SelectedRowStyle Font-Bold="False" />
<PagerStyle HorizontalAlign="Left" />
<HeaderStyle Font-Bold="False" />
</asp:GridView>
<table align="center" cellpadding="0" cellspacing="0"  border="0" width="100%">                                                                                           
  <tr>
    <td colspan="16" height="30" class="but"> <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" OnCheckedChanged="CheckBox2_CheckedChanged" />选择/反选&nbsp;<asp:Button ID="Button3" runat="server" Text="删除" OnClick="Button3_Click" /></td>
  </tr>
</table>

后台
   protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
    {
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
            if (CheckBox2.Checked == true)
            {
                cbox.Checked = true;
            }
            else
            {
                cbox.Checked = false;
            }
        }
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        Conn conn = new Conn();
        SqlConnection con = conn.getConn();
        SqlCommand sqlcom;
        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
            int id = Convert.ToInt32(this.GridView1.DataKeys[i].Value);
            CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
            if (cbox.Checked == true)
            {
               // string sqlstr = "delete from dept_type where id='" + GridView1.Rows[i].Cells[0].Text + "'";
                string sqlstr = "delete from dept_type where id='" + id + "'";
                sqlcom = new SqlCommand(sqlstr, con);
                sqlcom.ExecuteNonQuery();
            }
        }
        con.Close();
        BindData();
    }