Pass values between 2 MDI Child Forms using C# split container

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How to Pass values between 2 MDI Child Forms using C# split container

Posted 2-Nov-12 21:07pm

Suresh Kumar Adhimoolam

Updated 17-Jan-21 3:03am

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OriginalGriff · Answer 1 · 2012-11-02T22:12:00

The best method is to go via the MDI parent.

Create an event in the source child which says "I have data"
The Parent handles the event and either gets the data from the EventArgs, or via a child property.
It then passes the data to the other child via a property.

This way, neither form need to know about the existence of the other, only the form which supports both forms needs to do that, and it decides what to do with the data.

adriancs · Answer 2 · 2012-11-03T18:03:00

You can store the value in public static variable. Example:

C#

public class MyGlobalValue
{
    public static string MyGlobalString = "Hello";
    public static int MyGlobalInt = 1234;
}

You can access it anywhere in your application like this:

C#

MyGlobalValue.MyGlobalString += ", nice to meet you.";
MesssageBox.Show(MyGlobalValue.MyGlobalString);

C#

int a = MyGlobalValue.MyGlobalInt + 1;
MessageBox.Show("MyGlobalValue.MyGlobalInt + 1 = " + a);

Pass values between 2 MDI Child Forms using C# split container

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