Solved

How do I reference form controls for a seperate class (c#)?

Posted on 2008-10-22
6
527 Views
Last Modified: 2012-06-27
Assume I have a windows for with only 1 control... a Panel named panel1. I have a seperate class that I want to run that adds a control (an activex control specifically but I dont think that matters) onto panel1. I have found various ways to reference control values... but I have found no solutions as to how I reference the panel1 control specifically so I can add my activeX control to it from a seperate class.
0
Comment
Question by:Pretzel_Jesus
6 Comments
 
LVL 8

Expert Comment

by:jorgesv13
ID: 22780114
You can add the control to the ControlsCollection of the Panel, like this:

Panel pn = Form1.Panel1;
pn.Controls.Add(MyControl);
0
 

Author Comment

by:Pretzel_Jesus
ID: 22780156
I tried that and when I use the intellisense for Form1. all I see are some delegates I have I dont see any controls...
0
 
LVL 6

Expert Comment

by:RishadanPort
ID: 22780192
>all I see are some delegates I have I dont see any controls...

What do you mean all you see are some delegates but not any controls?
When you added the object, and run the program, does the ActiveX control show or not?
Make sure that the ActiveX control's Visible property is set to true.
0
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 6

Expert Comment

by:RishadanPort
ID: 22780220
In order to get back the ActiveX control that you added you need to do something like this:

(suppose ActiveXControl is your class name)

ActiveXControl myActiveX = null;

foreach(Control contr in panel1.Controls)
{
   if(contr is ActiveXControl){
      myActiveX = (ActiveXControl)contr;
   }
}

if(myActiveX == null){
   throw new Exception("ActiveX Control was not found in panel1");
}
0
 
LVL 85

Assisted Solution

by:Mike Tomlinson
Mike Tomlinson earned 200 total points
ID: 22780242
Change the MODIFIERS() property for your controls to Public if you want to be able to see them from outside your class...

0
 
LVL 8

Accepted Solution

by:
jorgesv13 earned 300 total points
ID: 22780266
You can try:
1. Make sure the panel access modifier is set to "Public" (default is Friend)
2. Are you instantiating the Form? Like:
Form1 frm = new Form1;
frm.panel1.controls.add(MyActiveXControl);
frm.ShowDialog()
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Whether you’re a college noob or a soon-to-be pro, these tips are sure to help you in your journey to becoming a programming ninja and stand out from the crowd.
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question