Pass value from a form to a user control

Question

0.00/5 (No votes)

See more:

How i pass value from a form to a user control, using events/delegates ? I only know pass from user control to form... I know with property, but i want to know if it's possible using events...

Thanks.

Posted 22-Oct-13 5:17am

Rieth L

Add a Solution

Comments

BillWoodruff 23-Oct-13 1:19am

Is it a requirement in this case that the UserControl define an Event ? If this only a case where you want to update something in the UserControl when something on the Form changes, that's easy, and does not require an Event (or a Delegate) defined in the UserControl.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2013-10-22T05:37:00

Yes - it's exactly the same as with forms - you use properties: Transferring information between two forms, Part 1: Parent to Child[^] The parent is the form, the child if the user control.
If you want to go the other way: Transferring information between two forms, Part 2: Child to Parent[^] then you can use events!

Pradeep Shukla · Answer 2 · 2013-10-22T05:38:00

Solution 2

You can use this CP article to get some ideas about how to do it..
Using a delegate to pass data between two forms[^]
There are plenty of articles on this topic online too... just search..

Posted 22-Oct-13 5:38am

Pradeep Shukla

Comments

BillWoodruff 23-Oct-13 1:01am

That article is not a good example of a reason to use delegates. The author states: "The advantage of using a delegate is that the form from which you want to send the data, doesn't need to know anything about the form that it's sending its data to."

In the example code it is obvious that Form1 has to not only have a valid reference to Form2, but it also relies on the fact that Form2 has a delegate defined that Form1 can assign a Method to.

There are much better ways to pass the data based on an Event.

Pass value from a form to a user control

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0

Existing Members

...or Join us