Custom Controls

apry · May 21st, 2004, 03:57 AM

I'm new to ASP. I'm trying to setup a custom control and am going through the tutorials in the SDK .
Here is the code

Namespace customcontrols
    Public Class clientclickbutton
        Inherits Button
        Protected Overrides Sub addattributestorender(ByVal writer As HtmlTextWriter)
            MyBase.AddAttributesToRender(writer)
            writer.AddAttribute("OnClick", "Alert('Thanks');")
        End Sub
    End Class
End Namespace

<%@ Register TagPrefix="Custom" Namespace="CustomControls.MyControl" Assembly = "CustomControls" %>
<%@ Page Language="vb" AutoEventWireup="false" src="WebForm1.aspx.vb" Inherits="WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
    <body MS_POSITIONING="GridLayout">
        <form id="Form1" method="post" runat="server">
            This button handles a client-side click event.
            <Custom:ClientClickButton Id="Button" BackColor="Red" runat="server" />
            <br>
            <br>
        </form>
    </body>
</HTML>

After this I get an error "File or assembly name CustomControls, or one of its dependencies, was not found.." with the @Register line highlighted.
I can't imagine this should be all that difficult and I'm probably missing something very basic here.
Anybody have any pointers for me?

bmains · May 21st, 2004, 07:57 AM

Hello,

You have to add the project name to the register statement:

<%@ Register TagPrefix="Custom" Namespace="<project name>.CustomControls" Assembly = "<project name>" %>

If customcontrols is the name of your project, you are also using customcontrols as the namespace, so it would look like CustomControls.Customcontrols.<etc>. Plus, I believe you don't reference the control in the namespace parameter in the Register tag.

Hope that helps,

Brian

apry · May 23rd, 2004, 11:04 PM

Hi Brian,
Thanks for the help.
Assembly name error is removed. Now it gives error in namespace decalration.
'Type 'Button' is not defined'

here is the code..
Namespace customcontrols
    Public Class clientclickbutton
        Inherits Button
        Protected Overrides Sub addattributestorender(ByVal writer As HtmlTextWriter)
            MyBase.AddAttributesToRender(writer)
            writer.AddAttribute("OnClick", "Alert('Thanks');")
        End Sub
    End Class
End Namespace

Can u pls help me to resolve this error.

Thanks,
Apry