I want to add the controls in a webform created in asp.net using vb.net as the choosen language.if i add label control programmatically , at run time , it works properly ; bt if i try to add textbox or button controls then it shows the error on the page .

the code that i'm writing is:----

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Put user code to initialize the page here
        Dim btn As New Label
        btn.Text = "Click"
        btn.ID = "Button1"
        Me.Controls.Add(btn)

        Dim t1 As New TextBox
        Me.Controls.Add(t1)

    End Sub

the error it shows is :---

Server Error in '/WebApplication8' Application.
--------------------------------------------------------------------------------

Control '_ctl0' of type 'TextBox' must be placed inside a form tag with runat=server.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Control '_ctl0' of type 'TextBox' must be placed inside a form tag with runat=server.

It says you either:

Don't have a <form> tag with the attribute runat="server" declared

OR

The textbox declared with runat="server" is above the <form> element or below the </form> element.

Now that I think about it, adding the controls to the page may be causing that. It would be better to put an asp:Panel within the page, and add the controls to the panel instead.

Brian

why do you need to add the controls dynamically?

Try adding <form runat="server"> at runtime before you create the control.

Hope this will work