Can't set tag value using c# codebehind on aspx page

Hi, I have a custom .ascx control and would like to set one of it's properties using code.  In the .aspx I have this:

<uc1:CustomContent ID="bunchOfContent" runat="server" contentPayload='<%# getRegionID() %>' />

In the codebehind I have:

    public partial class Region : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
... things
        }

        public string getRegionID()
        {
            //return "region_" + Request["region"];
            return "thevalueIwant";
        }

However, the value I want is not populated and the code is not invoked (breakpoints are not triggered).

What am I doing wrong?  I've tried various changes like changing the quotes from " to ' to no quotes at all.  Also I've used <%= instead of <%# but no luck.  Thanks!
Nathan08Asked:
Who is Participating?

Improve company productivity with a Business Account.Sign Up

x
 
käµfm³d 👽Connect With a Mentor Commented:
You're right....  I must be tired. This is what the previous should have been:
// Markup
<uc1:CustomContent ID="bunchOfContent" runat="server" />

// Codebehind
public partial class Region : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        // Use the control's ID to access the object
        bunchOfContent.contentPayload = getRegionID();
    }

    public string getRegionID()
    {
        //return "region_" + Request["region"];
        return "thevalueIwant";
    }

Open in new window

0
 
käµfm³d 👽Commented:
How about this:
// Markup
<uc1:CustomContent ID="bunchOfContent" runat="server" />

// Codebehind
public partial class Region : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        contentPayload = getRegionID();
    }

    public string getRegionID()
    {
        //return "region_" + Request["region"];
        return "thevalueIwant";
    }

Open in new window

0
 
themrrobertCommented:
try:


<uc1:CustomContent ID="bunchOfContent" runat="server" contentPayload="<%# getRegionID(); %>" />

or 
<uc1:CustomContent ID="bunchOfContent" runat="server" contentPayload="<%= getRegionID(); %>" />

Open in new window

0
What Kind of Coding Program is Right for You?

There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

 
Nathan08Author Commented:
Thanks for responses:

kaufmed -> 'contentPayload' is not a known construct in Page_Load (nor is uc1).  So this doesn't seem to work, am I missing a step?  I don't see where this assigns the property to the control?

themrrobert -> Unfortunately this doesn't invoke the code still

Any further help appreciated!
0
 
käµfm³d 👽Commented:
Did you drag the user control onto the markup surface or the designer surface (the rendered preview)? If you drag it onto the markup surface, it does not add the appropriate control references for some reason. You can manually add them, but I find it simpler to just delete the control and then drag a new copy of the control onto the designer surface.
0
 
Nathan08Author Commented:
Thanks.  Yes I did, the control operates correctly, it's just that I can't get that tag value with code.  Basically, its a simple CMS type thing where the ID of the control is used to determine the bit of content that is rendered.  So 'startpage' or 'aboutpage' gets the appropriate item based on that ID.

However, ID can't be changed on the fly so I'm trying to create an extra attribute that can be.  Proving harder than I expected!
0
 
Nathan08Author Commented:
Perfect!  Many thanks!
0
 
käµfm³d 👽Commented:
NP. Glad to help  :)
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.