Passing a Value to a User Control

DC Ross · February 17th, 2004, 12:12 PM

I have a user control named uc.ascx and an ASP.NET page named detail.aspx. Both of which are using codebehind, if it makes a difference.

In the aspx page I have the Register directive:

Code:

<%@ Register TagPrefix="Employees" TagName="uc" Src="uc.ascx" %>

and

Code:

<Employees:uc id="uc" Runat="server" />

In the user control, I have a dropdownlist named "MySelect", and in the codebehind, a string variable named "MySelectValue".

In the aspx page, I have a value that will determine the selected value of MySelect.

Here are some code snippets:

detail.aspx.cs:

Code:

private void Page_Load(object sender, System.EventArgs e) {
uc.MySelectValue = "SomeValue";
}

uc.ascx.cs:

Code:

public class uc : System.Web.UI.UserControl {
    public System.Web.UI.WebControls.DropDownList MySelect;

    public string MySelectValue {
        get {return MySelect.SelectedValue;}
        set {MySelect.SelectedValue = MySelectValue;}
    }
}

When I build the solution, I receive a CS0120 error ("An object reference is required for the nonstatic field, method or property 'xxx.Employees.uc.MySelectValue'") on the 'uc.MySelectValue = "SomeValue";' line in detail.aspx.cs.

I've tried everything I can think of, and I am at a total loss. I just can't figure this one out.
Thanks for your help.

Imar · February 17th, 2004, 04:30 PM

Hi there,

Did you add a declaration for the User Control in your code behind?

Add the following:

protected Your.Name.Space.YourControl uc;

There is a bug in VS, so it doesn't add the declaration in the Code Behind automatically.....

Cheers,

Imar

---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.

DC Ross · February 17th, 2004, 06:38 PM

Thank you so much! I've been struggling with this for three days!