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
<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
CheckBox cb = (CheckBox)gvList.Rows[a].FindControl("Checkbox1");
添加引用:
using System.Web.UI.HtmlControls;
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;
<input id="Checkbox1" type="checkbox" runat ="server" />