在gridview中檢查項目的驗證

Question

我有GridView，其中兩個文本框和一個複選框在一行中。 ，我希望當這個複選框被選中時，這兩個文本框都需要字段驗證，否則我不想驗證。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" CssClass="grvStyle" 
    Width="100%" OnRowDataBound="GridView1_RowDataBound"> 
    <EmptyDataTemplate> 
     <asp:Label ID="lblnorow" runat="server" Text="Record not Found"></asp:Label> 
    </EmptyDataTemplate> 
    <Columns> 
     <asp:TemplateField HeaderText="SrNo." ItemStyle-Width="30px" ItemStyle-HorizontalAlign="Center"> 
      <ItemTemplate> 
       <asp:Label ID="lblsrno" runat="server"></asp:Label> 
      </ItemTemplate> 
     </asp:TemplateField> 
     <asp:BoundField DataField="Dates" HeaderText="Dates"> 
      <HeaderStyle HorizontalAlign="Center"></HeaderStyle> 
      <ItemStyle HorizontalAlign="Center"></ItemStyle> 
     </asp:BoundField> 
     <asp:TemplateField HeaderText="Registration Closing Date"> 
      <ItemTemplate> 
       <asp:TextBox ID="txtCloseDate" runat="server" CssClass="datepicker"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator10" runat="server" ValidationGroup="VGrpSelect" 
        ControlToValidate="txtCloseDate" ErrorMessage="Registration Closing Date is required" 
        Display="none" SetFocusOnError="True"> 
       </asp:RequiredFieldValidator> 
       <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtCloseDate" 
        Display="None" ErrorMessage="Invalid Registration Closing Date Format" SetFocusOnError="True" 
        ValidationGroup="VGrpSelect" ValidationExpression="([1-9]|0[1-9]|[12][0-9]|3[01])[- /.]([1-9]|0[1-9]|1[012])[- /.](19|20|30)\d\d"> 
       </asp:RegularExpressionValidator> 
      </ItemTemplate> 
      <HeaderStyle HorizontalAlign="Center" /> 
      <ItemStyle HorizontalAlign="Center" /> 
     </asp:TemplateField> 
     <asp:TemplateField HeaderText="No of Pax"> 
      <ItemTemplate> 
       <asp:TextBox ID="txtNoOfPax" runat="server" Width="50"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator11" runat="server" ValidationGroup="VGrpSelect" 
        ControlToValidate="txtNoOfPax" ErrorMessage="No of Pax is required" 
        Display="none" SetFocusOnError="True"> 
       </asp:RequiredFieldValidator> 
       <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ValidationGroup="VGrpSelect" 
        SetFocusOnError="True" Display="None" ErrorMessage="No of Pax must have Numeric value" 
        ControlToValidate="txtNoOfPax" ValidationExpression="\d*"> 
       </asp:RegularExpressionValidator> 
      </ItemTemplate> 
      <HeaderStyle HorizontalAlign="Center" /> 
      <ItemStyle HorizontalAlign="Center" /> 
     </asp:TemplateField> 
     <asp:TemplateField HeaderStyle-HorizontalAlign="Center" HeaderStyle-Width="60px" 
      ItemStyle-HorizontalAlign="Center"> 
      <HeaderTemplate> 
       Select<asp:CheckBox ID="chkHeaderSelect" runat="server" onclick="SetCheckBox(this)" /> 
      </HeaderTemplate> 
      <ItemTemplate> 
       <asp:CheckBox ID="chkSelect" runat="server" onclick="CheckCheckBox()" /> 
       <asp:HiddenField ID="hidf" runat="server" Value='<%# Eval("Dates") %>' /> 
      </ItemTemplate> 
     </asp:TemplateField> 
    </Columns> 
    <RowStyle CssClass="data-row" /> 
    <AlternatingRowStyle CssClass="alt-data-row" /> 
    <PagerStyle HorizontalAlign="Right" ForeColor="Black" /> 
</asp:GridView> 

<script type="text/javascript"> 
    function GVal(chk, req) { 
     if (chk.Checked == true) { 
      req.Enabled = true; 
     } 
     else { 
      req.Enabled = false; 
     } 
    } 
</script> 

在GridView的

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
{ 
    if (e.Row.RowType == DataControlRowType.DataRow) 
    { 
     Label lblSrNo = (Label)e.Row.FindControl("lblSrNo"); 
     int srno = e.Row.DataItemIndex + 1; 
     lblSrNo.Text = srno.ToString(); 

     CheckBox chkSelect = (CheckBox)e.Row.FindControl("chkSelect"); 
     TextBox txtCloseDate = (TextBox)e.Row.FindControl("txtCloseDate"); 
     RequiredFieldValidator required = (RequiredFieldValidator)e.Row.FindControl("RequiredFieldValidator10"); 
     chkSelect.Attributes.Add("onclick", "javascript:GVal(" + chkSelect.ClientID + "," + required.ClientID + ");"); 
    } 
} 

我做了這樣的事情，但它顯示了所有行驗證的RowDataBound事件。

Answer 1

function GVal(chk, req) { 

     ValidatorEnable(document.getElementById(req),document.getElementById(chk).checked); 

} 

更多細節，你可以在這裏找到[ASP.NET驗證詳解]：http://msdn.microsoft.com/en-us/library/aa479045.aspx

Answer 2

您可以使用自定義驗證器和JavaScript/jQuery。這可以通過服務器端每行注入。這SO post可能能夠幫助你解決這個問題。