JavaScript判断GridView的选中条数

function TotalChecked()
    {
       var count=0;
       var GridView2 = document.getElementById("<%=gviewNotPublishTrade.ClientID %>");      
       for(i = 1;i < GridView2.rows.length; i++)
       {
         if( GridView2.rows[i].cells[0].getElementsByTagName("INPUT")[0].checked)
         {
            count++;
         }
         
       }
      if(count>=1)
      {
         return confirm("你确定要发布吗？");
      }
      else
      {
           alert("请至少选中一条记录！");
           return false;
      }
      
    
    }


2.CheckBox全选

function CheckAll(checkbox)
{
    var elements = checkbox.form.elements;
    for(var i = 0;i < elements.length;i++)
    {
        if(elements[i].type == "checkbox" && elements[i].id != checkbox.id)
        {
            elements[i].checked = checkbox.checked;
          }
    }
}

引用：
<asp:TemplateField>
                            <HeaderTemplate>
                                  <input type="checkbox" id="Check" onclick="CheckAll(this)" title="全选" />
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:CheckBox ID="checkSingle" runat="server" />
                            </ItemTemplate>
                            <ItemStyle Width="48px" HorizontalAlign="Center" />
                        </asp:TemplateField>