gridview 找不到HtmlInputCheckBox

Question

aspx:
 <asp:GridView ID="gvList" runat="server" AutoGenerateColumns="False" CellPadding="4"
            Width="100%" CssClass="GridViewStyle" GridLines="None" DataKeyNames="id" 
            AllowPaging="True" onrowcancelingedit="gvList_RowCancelingEdit" 
            onrowediting="gvList_RowEditing" onrowupdating="gvList_RowUpdating">
            <PagerSettings Visible="false" />
            <RowStyle CssClass="GridViewRowStyle" />
            <Columns>
               <asp:BoundField DataField="id" />
                <asp:TemplateField FooterText="选择" HeaderText="选择">
                    <ItemTemplate>
                        <input ID="Checkbox1" type="checkbox"  value="<%#Eval("id")%>" runat="server" />
                                          </ItemTemplate>
                    <ItemStyle HorizontalAlign="Center" />
                </asp:TemplateField>
c#：
 for (int a = 0; a < gvList.Rows.Count;a++ )
                {
                    HtmlInputCheckBox cb = (HtmlInputCheckBox)gvList.Rows[a].FindControl("Checkbox1");
                    for (int j = 0; j < da.DataTable.Rows.Count; j++)
                    {
                        string str = da.DataTable.Rows[j]["Id"].ToString();
                        if (gvList.Rows[a].Cells[0].Text == str)
                        {
                            cb.Checked = true;
                            break;                        }
                    }                }
为什么后台找不到Checkbox呢？困惑了？在线等

Answer 1

换成checkbox试试的呢？
CheckBox cb = (CheckBox)gvList.Rows[a].FindControl("Checkbox1");

Answer 2

我试了 是成功的。。我在想为什么 客户端 HtmlInputCheckBox 就不行呢？不知道为什么

Answer 3

没引用!!
添加引用:
using System.Web.UI.HtmlControls;

Answer 4

value="<%#Eval("id")%>"  换成 value='<%#Eval("id")%>'

Answer 5

我已经引用了using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Data.SqlClient;

Answer 6

加runat="server"如:
<input id="Checkbox1" type="checkbox"  runat ="server" />