Untitled

DotNetNuke CustomValidator strange behavior

<div>

<asp:UpdatePanel ID="UpdatePanelValidationSummaryHome" ChildrenAsTriggers="False"                          UpdateMode="Conditional" runat="server">

 <ContentTemplate>

        <asp:ValidationSummary ID="ValidationSummary1" CssClass="validationSummary" runat="server"

            EnableClientScript="False" ShowSummary="true" ShowMessageBox="false" />

        <asp:CustomValidator ID="CustomValidatorActiveTab" runat="server" Display="None"

            ErrorMessage="Error the field ... was not correct..." OnServerValidate="CustomValidatorActiveTab_ServerValidate"></asp:CustomValidator>

       

<asp:Button ID="btnZoeken" CssClass="btnZoeken" CausesValidation="true" runat="server"    Text="<%$ Resources:GLOBAL, btnZoeken %>"

        OnClick="btnZoeken_Click" />

       

private bool ValidateTab_Ondernemingsnummer()

    {

        if (!String.IsNullOrEmpty(txtOndernemingsnummer.Text) &&  txtOndernemingsnummer.Text.Length >= 3)

        {

            return true;

        }

        return false;

    }

 

protected void CustomValidatorActiveTab_ServerValidate(object source, ServerValidateEventArgs e)

    {

        int activeTab = GetActiveIndexAccordion();

 

        switch (activeTab)

        {

            //Zoeken op ondernemingsnummer

            case 0:

                if (!ValidateTab_Ondernemingsnummer())

                {

                    e.IsValid = false;

                }

                else

                {

                    e.IsValid = true;

                }

                break;

}

       

<asp:UpdatePanel ID="UpdatePanelValidationSummaryHome" ChildrenAsTriggers="False"

    UpdateMode="Conditional" runat="server">

    <ContentTemplate>

        <asp:ValidationSummary ID="ValidationSummary1" CssClass="validationSummary" runat="server"

            EnableClientScript="False" ShowSummary="true" ShowMessageBox="false" />

        <asp:CustomValidator ID="CustomValidatorActiveTab" runat="server" Display="None"

            EnableClientScript="false" Enabled="false" ErrorMessage="ERROR ONDERNEMINGSNUMMER"

            OnServerValidate="CustomValidatorActiveTab_ServerValidate"></asp:CustomValidator>

       

protected void btnZoeken_Click(object sender, EventArgs e)

    {

        CustomValidatorActiveTab.Enabled = true;

        CustomValidatorActiveTab.Validate();

 

        if (Page.IsValid)

        {

            CustomValidatorActiveTab.Enabled = false;