Not able to access controls from Usercontrol called dynamically in child page

Question

I am using below link for dynamically calling Usercontrols based on my conditions in aspx page. Link which i am using to dynamically load User-Controls

Now the question is that,

1) I am creating the object of respective user control, to call the submit functionality of that page. (is this the correct way to do this).

2) In the child page, ie(User Control), I get Object Reference Exception, while accessing the controls of this user control.

Can anybody please help.

Hi, Enclosing sample code for further clarification. 1) user Control code that i am using.

namespace WebApplication1
{
    public partial class UserControlOne : System.Web.UI.UserControl
    {
       public void btnUserControlOne_Click(object sender, EventArgs e)
       {
            lblUserControlOne.Text = "User Control Button Clicked";
        }
     }
}

The error of object reference is coming at this line. lbl.Text.

2) The page where this user control is called is below.

namespace WebApplication1
{
   public partial class parentWebForm : System.Web.UI.Page
   {
      protected void Page_Load(object sender, EventArgs e)
      {
         System.Web.UI.UserControl uc = 
        (System.Web.UI.UserControl)Page.LoadControl("UserControlOne.ascx");

         divLoadControl.Controls.Add(uc);
       }

     protected void btnParent_Click(object sender, EventArgs e)
     {
        UserControlOne usrCntrlOne = new UserControlOne();
        usrCntrlOne.btnUserControlOne_Click(sender, e);
     }
   }
}

Without any code and exact explanation what’s happening there’s not much we can say. Please include a [mcve] or at least the appropriate parts of code, the functionality required, what happens, what should happen etc — Sami Kuhmonen, Dec 05 '18 at 06:05

score 0 · Answer 1 · answered Dec 12 '18 at 09:00

Solved this problem using below link Link of solution which uses delegate. So what i did is, i created a Delegate for the function, as denoted in the solution link above, and as i wanted to redirect to next page, on control returning to delegate event in parent page, this task was accomplished.

So, Basically i did the other way round, called the user-control event in content page, as the name of events in all the dynamic controls is same, so it solved the issue.

Not able to access controls from Usercontrol called dynamically in child page

1 Answers1