GridView空行验证 [英] GridView Empty Row Validation

问题描述

我需要验证gridview(即是否为空)
(Gridview数据将由用户通过数据表填充.)

在我的代码中找不到Gridview1.
并建议我的代码/方法正确..
//================================================ =======

I need to validate a gridview (ie. is empty or not)
(Gridview data will be filled by user through datatable.)

In my code it is not able to find the Gridview1.
and also advise my code / way is correct..
//=======================================================

<script  language="javascript" type ="text/javascript" >
     function gvPostDatedChequeValidation(source, args)
       {
        var Grid = document.getElementById("<%=GridView1.ClientID%>");
        if (Grid.Rows.Count>0 )
         {
         args.IsValid = true;
         }
         else
         {
         args.IsValid = false;
         }
       }
       </script>

//================================================ ============

//=============================================================

<asp:GridView ID="GridView1" runat="server">
  </asp:GridView>

  <asp:CustomValidator ID="CustomValidator2" runat="server"  ErrorMessage="Fill Blank Cheque Details"

  ClientValidationFunction="gvPostDatedChequeValidation">*</asp:CustomValidator>

  <asp:Button ID="Button1" runat="server" Text="Button" />

推荐答案

Count属性在javascript中无效
使用这样的length属性

Count property is not valid in javascript
use length property like this

if (Grid.rows.length>0 )
        {
}

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