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POElegant way to make CustomValidator work with ValidationSummary messagebox
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  1. POElegant way to make CustomValidator work with ValidationSummary messagebox
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    copied!<p>I have run into this problem before but never quite solved it. I have a form with several validators and also a CustomValidator.</p> <pre><code>&lt;asp:Label ID="lblMemberNum" runat="server" Text="Membership #:" CssClass="LabelMedium" &gt;&lt;/asp:Label&gt; &lt;asp:TextBox ID="txtMemberNum" runat="server" CssClass="TextBox" &gt;&lt;/asp:TextBox&gt; &lt;asp:RequiredFieldValidator ID="rfvMemberNum" SetFocusOnError="True" runat="server" ControlToValidate="txtMemberNum" ErrorMessage="[ Membership # ] is required" CssClass="ValidationMessage" Display="Dynamic" &gt;*&lt;/asp:RequiredFieldValidator&gt; &lt;asp:RegularExpressionValidator ID="revMemberNum" Display="Dynamic" runat="server" ControlToValidate="txtMemberNum" CssClass="ValidationMessage" ErrorMessage="[ Membership # ] can only contain letters" ValidationExpression="^([a-zA-Z\d]+)$" &gt;*&lt;/asp:RegularExpressionValidator&gt; &lt;asp:CustomValidator ID="cvMemberNum" runat="server" CssClass="ValidationMessage" Display="Dynamic" ControlToValidate="txtMemberNum" ValidateEmptyText="false" OnServerValidate="cvMemberNum_Validate" ErrorMessage="This membership number is already registered"&gt;*&lt;/asp:CustomValidator&gt; &lt;asp:ValidationSummary ID="ValidationSummary1" runat="server" CssClass="ValidationMessage" ShowMessageBox="True" ShowSummary="False" /&gt; </code></pre> <p>and on the server side:</p> <pre><code>protected void cvMemberNum_Validate(object source, ServerValidateEventArgs args) { try { args.IsValid = (!CampaignRegistration.IsMemberRegistered(args.Value)); } catch { args.IsValid = false; } } </code></pre> <p>My problem is: The ValidationSummary never shows the message from CustomValidator. This question has been asked in several places, but I havent seen a satisfactory answer.</p>
 

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