I have the following user control:
<asp:UpdatePanel ID="upDisplayPremise2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:TextBox ID="txtPremiseID" runat="server" AutoPostBack="true"></asp:TextBox>
<asp:CustomValidator ID="cvValidPremises" ErrorMessage="Invalid Federal Premises ID. " runat="server" Display="Dynamic">!</asp:CustomValidator>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="txtPremiseID" EventName="TextChanged" />
</Triggers>
</asp:UpdatePanel>
This control is used multiple times on one aspx page. The issue is that each time an instance of the control is validated due to a text change any prior error messages are cleared from the ...
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