Load web user control dynamic in other web user control

[IlseDC]

I have made two web user controls (Control_1 and Control_2) with some labels and buttons on it.
Is it possible to load Control_2 dynamic at runtime in Control_1?
Control_1 is part of the web page default.aspx.

So in the page_load of Control_1 I thought to use following code:
Control_2 myControl = new Control_2();
myPlaceHolder.Controls.Add(myControl);


But this does not work.

Any ideas?
Thanks.

 

[ca8msm]

You'll have to load the second user control using the LoadControl method

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[IlseDC]

I tried with the LoadControl method.
I get following error message:

Control 'Control_11__ctl0_Button1' of type 'Button' must be placed inside a form tag with runat=server.

Button1 is the control on web user control Control_2.
In the page_load van web user control Control_1 I do the load of Control_2.

Page_Load of Control_1:
Control_2 myControl_2 = (Control_2) LoadControl("Control_2.ascx");
PlaceHolder1.Controls.Add(myControl_2);

Any ideas?

 

[vbkris]

does the second control have <form runat="server"> set to it???

Known is handfull, Unknown is worldfull

 

[ca8msm]

That would suggest to me that you haven't included a form tag on your aspx page...

Here's a really simple example of how it should be done:

Page1.aspx has the following HTML in the body tag:

		<form id="Form1" method="post" runat="server">
			<uc1:WebUserControl1 id="MyUserControl" runat="server"></uc1:WebUserControl1>
		</form>

WebUserControl1 has a placeholder in it's HTML (with no form tags or any other HTML):

<asp:PlaceHolder id="PlaceHolder1" runat="server"></asp:PlaceHolder>

It also has code in it's page load event to load the second control:

    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
        PlaceHolder1.Controls.Add(Me.LoadControl("WebUserControl2.ascx"))
    End Sub

and WebUserControl simply has a button on it (again with no other HTML:

<asp:Button id="Button1" Text="Button" runat="server"></asp:Button>

Now, when you run Page1.aspx, ypu should see the button from the second user control.


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[IlseDC]

I dragged Control_1 to my web page but is was outside the <form> </form>.
I changed the location of the user control in HTML view and now it works fine.
Thanks for your advice.