How to validate people picker control during postback

Question

I have a custom people picker control in my custom newform.aspx.


I am using this code

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="PIPTrackerUserControl.ascx.cs"
    Inherits="PIPTrackerUserControl" EnableViewState="true" Debug="true" %>
<%@ Register TagPrefix="Sharepoint" Namespace="Microsoft.SharePoint.WebControls"
    Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<table>
        <tr>
        <td class="ms-toolbar" nowrap="nowrap" colspan="2">
            <Sharepoint:FormToolBar EnableViewState="true" Visible="true" ID="FormToolBar1" runat="server"
                ControlMode="New" />
        </td>
    </tr>
<tr>
<td style="width: 350px; font-family: Verdana; font-size: 11px;" class="ms-formbody">
            <Sharepoint:PeopleEditor ID="peProposalSubmitter" AllowEmpty="true" ValidatorEnabled="true"
                MultiSelect="false" runat="server" SelectionSet="User" Width='350px' />
</td>
</tr>
<tr>       
        </td>
        <td style="font-family: Verdana; font-size: 11px;" align="right">
            &nbsp;&nbsp;&nbsp;&nbsp;<asp:Button ID="btnOK1" Text="OK" runat="server" Width="75px"
                CssClass="ms-toolbar" OnClick="btnOK1_Click" />
         </td>
 </tr>


ValidatorEnabled is set true.But people picker does not work during postback(that is when i click OK, the item gets added to the list even if the user entered is wrong).

Answer 1

Can you show the code behind for the button...

Answer 2

Thanks for your reply. I already got the solution. I had to use IsValid property.Now its working fine.