How to get the registered user control to code behind in c#?

Question

I have register a page using the code

<%@ Register TagPrefix="uc1" TagName="side" Src="side.ascx" %>

And called this by using the code

<uc1:side ID="Side1" runat="server"></uc1:side>

And i tried to acces the ID="Side1" in behind by using

private void Page_Load(object sender, System.EventArgs e)
{
    // Put user code to initialize the page here

    if (Session["UName"] != null || Session["UName"] != " ")
    {
        Side1.Visible = true;
    }
    else
        Side1.Visible = true;
    }

but gives the error

The name 'Side1' does not exist in the current context .

How will i resolve it by accessing the 'id' using 'protected System.Web.UI'.

Maybe a typo, but are you missing a bracket after your if condition? — Ric, Jul 30 '15 at 13:43
Are you try `FindControl("Side1")` method? reference: [link](https://msdn.microsoft.com/tr-tr/library/31hxzsdw(v=vs.110).aspx) — Mitat Koyuncu, Jul 30 '15 at 13:49
Edit your question, add the code of your ascx class definition. — zed, Jul 30 '15 at 13:53
I think `Side` is `protected`. You should make `Side` `internal` . — Mitat Koyuncu, Jul 30 '15 at 13:55
Is your control inside of some sort of templated control, such as a Repeater? — mason, Jul 30 '15 at 13:57
Does the solution compile anyways? Try a clean and rebuild, or just a rebuild. The error should go away. If it doesn't go away, but the solution still compiles, then it's just Visual Studio being wonky. You can ignore the error. — Greg Burghardt, Jul 30 '15 at 14:01

score 0 · Accepted Answer · edited May 23 '17 at 11:44

0

Check the access modifier on your WebUserControl partial class definition (ie YourControl.ascx.cs file), it should be something like this:

public partial class SideControl : System.Web.UI.UserControl
{
    // your code...
}

You can find more information about access modifiers here.

edited May 23 '17 at 11:44

Community

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answered Jul 30 '15 at 14:24

zed

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Thanks a lot for helping me – Jul 31 '15 at 06:10
By using above i modified the code like this ' protected System.Web.UI.HtmlControls.HtmlGenericControl head; private void Page_Load(object sender, System.EventArgs e) { if (Session["UName"] != null) { head.Controls.Add(this.LoadControl("header.ascx")); }' – Aug 03 '15 at 11:00

How to get the registered user control to code behind in c#?

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