gridview中js与checkbox结合，无法获取checkbox选中？

Question

  <asp:GridView ID="Note1" runat ="server" AutoGenerateColumns="False" 
                                        CaptionAlign="Top" BorderStyle="None" BorderWidth="0px" Width="100%">
                               
                               <Columns>
                               <asp:TemplateField>
                                <ItemTemplate>
                             <asp:CheckBox ID="chkSelect"    runat="server"  onclick="javascript:checkAll('chkAll',this);" />                                </ItemTemplate>
                                   <HeaderStyle Width="3%" />
                            </asp:TemplateField>                               <asp:BoundField DataField="CreateDate"  HeaderText="编写时间"  
                                       DataFormatString="{0:yyyy-MM-dd}"    >
                              
                                   <HeaderStyle CssClass="f-hei12" Width="14%" />
                                  <ItemStyle Wrap="False"  CssClass="f-hei12" />
                                   
                                   </asp:BoundField>
                              
                               <asp:BoundField DataField="NoteContent" HeaderText="摘 要" >
                               <HeaderStyle CssClass="f-hei12" Width="72%" /> 
                                   <ItemStyle Wrap="False" CssClass="f-hei12" />
                                   </asp:BoundField>
                                                             </Columns>
                               </asp:GridView>  private string  GetCheckbox() 
     {         string sb = "";
         for (int i = 0; i <= Note1.Rows.Count - 1; i++)
         {
             CheckBox cbox = (CheckBox)Note1.Rows[i].FindControl("chkSelect");             if (cbox.Checked == true)
             {                 //note.Delete(int.Parse(Note1.DataKeys[i].Value.ToString()));
                 sb += Note1.DataKeys[i].Value.ToString() + ",";             }
           
         }
         return sb;
     }获取不到所选啊，我调试都是false

Answer 1

你的前台的checkbox选中了吗？
checkAll（）这个js怎么写的？

Answer 2

当然选中了，我点单选一个，或者全选都不行
function checkAll(chkAllID,thisObj) 
{ 
    var chkAll = document.getElementById(chkAllID); 
    var chks = document.getElementsByTagName("input"); 
    var chkNo = 0; 
    var selectNo = 0; 
    for(var i =0; i < chks.length; i++) 
    { 
       if(chks[i].type == "checkbox") 
       { 
          //全选触发事件   
          if(chkAll == thisObj) 
          { 
             chks[i].checked = thisObj.checked;              
          }           
          //非全选触发 
          else 
          { 
            if(chks[i].checked && chks[i].id != chkAllID) 
             selectNo++; 
          } 
          if(chks[i].id != chkAllID) 
          { 
            chkNo++; 
          } 
       } 
    }  
    if(chkAll != thisObj) 
    { 
        chkAll.checked = chkNo==selectNo; 
    } 
}function checkSelectNo(chkAllID) 
{ 
    var chks = document.getElementsByTagName("input"); 
    var selectNo =0; 
    for(var i =0; i < chks.length; i++) 
    { 
       if(chks[i].type == "checkbox") 
       { 
            if(chks[i].id != chkAllID && chks[i].checked) 
            { 
                selectNo++; 
            } 
       } 
    }   
    return selectNo; 
}

Answer 3

checkbox的onclick的时候，它的checked状态还没改呢！
你的逻辑错了。

Answer 4

换成:input 的 checkbox<asp:GridView ID="Note1" runat ="server" AutoGenerateColumns="False" CaptionAlign="Top" BorderStyle="None" BorderWidth="0px" Width="100%"> 
<Columns> 
     <asp:TemplateField> 
         <ItemTemplate> 
<INPUT type="checkbox" name="ckb"  onclick="javascript:checkAll('chkAll',this);"
         </ItemTemplate> 
      <HeaderStyle Width="3%" /> 
      </asp:TemplateField> 
 <asp:BoundField DataField="CreateDate"  HeaderText="编写时间"  DataFormatString="{0:yyyy-MM-dd}"    > 
 <HeaderStyle CssClass="f-hei12" Width="14%" /> 
  <ItemStyle Wrap="False"  CssClass="f-hei12" /> 
   </asp:BoundField> 
   <asp:BoundField DataField="NoteContent" HeaderText="摘 要" > 
    <HeaderStyle CssClass="f-hei12" Width="72%" /> 
      <ItemStyle Wrap="False" CssClass="f-hei12" /> 
     </asp:BoundField> 
     </Columns> 
    </asp:GridView>private string  GetCheckbox() 
    {
   string strValue=Request["ckb"];
return strValue;
}

Answer 5

DataKeyNames="menberid"  girdview加入datakeynames解决