Page.IsValid not working with the update panels

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when I click the image button the cursor goes back to the first textbox.
in the behind code I have this?

C#

protected void imgRegister_Click(object sender, ImageClickEventArgs e)
       {

           System.Threading.Thread.Sleep(2000);

           if (Convert.ToInt32(search_age_start.SelectedValue) > Convert.ToInt32(search_age_end.SelectedValue))
           {
               lblMessage.Text = "Minimum age should be less than or equal to maximum age.";
               search_age_start.Focus();
               return;
           }

           if (ctrlCaptcha != null)
           {
               if (!ctrlCaptcha.ValidateCaptcha())
               {
                   lblMessage.Text = "Invalid Access Code, try again.";
                   return;
               }
           }

           if (Page.IsValid)
           {

XML

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:ImageButton ID="imgRegister" runat="server" onmouseover="~/Images/Buttons/rollover2.jpg"
                onmouseout="~/Images/Buttons/rollover1.jpg" Font-Bold="True" ImageUrl="~/Images/Buttons/rollover1.jpg"
                OnClick="imgRegister_Click" />
        </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
        <ProgressTemplate>
            <img alt="" runat="server" src="../../Images/ajax-loader.gif" />
            Loading ...
        </ProgressTemplate>
    </asp:UpdateProgress>

Posted 10-Feb-11 9:46am

macupryk

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Yusuf 10-Feb-11 16:28pm

Don't put your comments/question in the 'Answer' box. There is 'Add Comment' to the side. Did you see that?

1 solution

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Albin Abel · Answer 1 · 2011-02-10T09:55:00

Hi

One thing to look at your page is, there is no CausesValidation="true" for the image button.

Here is an example

On the aspx page

XML

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <asp:ScriptManager ID="script1" runat="server">
    </asp:ScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server" Visible="true">
        <ContentTemplate>
            <asp:Label  runat="server" Text="This is a required field" ></asp:Label>
            <asp:TextBox ID="text1" runat="server" ></asp:TextBox>
              <asp:Label ID="validation_result"  runat="server" ></asp:Label>
            <asp:CustomValidator ID="CustomValidator1" runat="server"
                 ControlToValidate="text1"  OnServerValidate ="validateTextBox"></asp:CustomValidator>
                <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server"
                ControlToValidate="Text1"
                ErrorMessage="Password Should Not Be Empty"
                Display="Dynamic">
            </asp:RequiredFieldValidator>
            <asp:ImageButton ID="imgRegister" runat="server"
                 Font-Bold="True" ImageUrl="~/App_Data/arrow.png"
                OnClick="imgRegister_Click"  CausesValidation="true"/>
         </ContentTemplate>
    </asp:UpdatePanel>

</asp:Content>

In the code behind...

C#

protected void imgRegister_Click(object sender, ImageClickEventArgs e)
{
    if (Page.IsValid == true)
    {
        this.validation_result.Text = "Validated";
    }
    else
    {
        this.validation_result.Text = "Password should be 8 or more in characters";
    }
}
protected void validateTextBox(object sender, ServerValidateEventArgs e)
{
    if (Convert.ToString(e.Value).Length > 7)
    {
        e.IsValid = true;
    }
    else
    {
        e.IsValid = false;
    }
}