How can I user web user control from another project? 2

[passs]

Hello everybody!

Can you please help me? I have one solution with two projects. One of them has some web user controls and I want to use them in another project inside this solution.
I just use drug and drop and then try to build it but get an error:
Parser Error Message: The virtual path '/TestUserControl2/Control1.ascx' maps to another application, which is not allowed.
How can I handle it?
Will be very glad for any help!

Thanks,
Alex

 

[DaZZleD]

you don't need to make any drag and drops!

you need to add a reference to that project.

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

Hey,

Thanks for an answer.
But what exactly I must do?
I add a refeernce to another project. And this thing:
<%@ Register TagPrefix="uc1" TagName="Control01" Src="../TestUserControls/Control01.ascx" %>
should I remove it or not?

Thank you!
Alex

 

[DaZZleD]

once you add the reference, you can create an instance of that control using the namespace of that project and the name of the class of the control.

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

Yes I tried to do that, but there is no actually such user web control in my form. Look what have I done:

using TestUserControls;//declare namespace

protected Control01 newObj = new Control01();//create an object of that class, which is needed control

this.FindControl("Form1").Controls.Add(newObj);
add this control to a form in some page in this another project.

But as a result I get nothing, like I have an empty object (Control).
How to solve it?

Thank you!
AP

 

[DaZZleD]

you should add the controls as
this.Controls.Add(newObj);


also make sure that your control actually outputs something to the page.

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

Hm, maybe I do something wrong. My web use control has some web controls, such as textboxes, buttons etc. I paste such code you gave me, but recieve nothing. That looks like I create an object of that class but it is empty. Don't know something is wronghere

Thank you!
AP

 

[DaZZleD]

can you post your control code?

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

Thank you!
Yeap, sure, I can do it
here is a code which is call for that control:

protected Control01 newObj = new Control01();
private void Page_Load(object sender, System.EventArgs e)
{
//this.Controls.Add(newObj);
Response.Write(newObj.Controls.Count);
//newObj.Page.Load(sender,e);
this.Controls.Add(newObj);
// Put user code to initialize the page here
}

and a control from another project:
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Control01.ascx.cs" Inherits="TestUserControls.Control01" TargetSchema="

http://schemas.microsoft.com/intellisense/ie5"%>

<asp:LinkButton id="LinkButton1" runat="server">LinkButton</asp:LinkButton>
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button>

and code behind:
public void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
LinkButton1.Text = "hellow world!";
TextBox1.Text = "aaaaaaaa";
}

something like this

 

[DaZZleD]

load the control in a placeholder.

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

still nothing((
maybe I need to inicialize it some way?

 

[cappmgr]

dazzled,
Are you sure this can be done. I've been following this thread and have written a little stub. I too can not get it to work.

When you deploy a web site at least the solutions .dll must be in the directory and all the .aspx and .ascx must be in the directory.

For things like this I build composite controls a class inheriting Control and build the page controls using HtmlTextWriter and by overrideing Render, SaveViewState and LoadViewState.

Have never done it with a UserControl (inheriting UserControl) and ascx. And cannot see how it can be done if the .ascx is not in the directory.
I hope I am wrong and would like to see the solution.
Marty

 

[DaZZleD]

i will try to make a working example.

in this case the controls are added in the source of the aspx file not in the codebehind (class). if the controls (textboxes etc.) were to be added in the class file, it should work ok.

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[passs]

that would be great, I mean working example
Thank you!

 

[jgpasko]

passs,

Try this:

Add the User Control (<file>.ascx) as an existing object to the project you want to instantiate in. Make sure that you change the Namespace to the Namespace of your current project.

Then declare the user control:

protected UserControl <usercontrolname>;

then add it to the Page_Load as follows

<usercontrolname>.Visible = true;

This should work.

Good Luck!





John Pasko
jpasko@telemetrysoft.com

 

[passs]

heym thanks, yes that works I know. Atually I was curios about the using the web user control from another project directly
Thank you

 

[cappmgr]

passs,
Here is a working example.

http://support.microsoft.com/kb/324785

The only catch is the UserControls cannot be in a Web Application they must be in a Web Project.
Marty

 

[passs]

Hey, cappmgr!

Thanks Think that will help!
Thank you!
AP

 

[passs]

cappmgr
thank you!!! That really works!!!
Many thanks!