Creating a Window object and then calling it in an other Window class in WPF C#

Question

Why this first code works

MessageBox.Show("No Applicants\nFirst Add applicants with dataentryaccount");
MainWindow mw = new MainWindow();
mw.Show();
this.Close();

But this second code doesn't show the mw window

    MessageBox.Show("No Applicants\nFirst Add applicants with dataentryaccount");
MainWindow mw = new MainWindow();
this.Close();
mw.Show();

Although when debugged Line by Line all these lines are executed.

because you are closing the main program window before you show next window — Olivarsham
– Olivarsham, Commented Feb 27, 2016 at 6:26
But When debugged Line by line, the lines do execute? How will you justify that — Syed Kumail Haider Naqvi
– Syed Kumail Haider Naqvi, Commented Feb 27, 2016 at 6:31
Honestly - How aren't you getting an ObjectDisposedException in both examples. — Gabe
– Gabe, Commented Feb 27, 2016 at 6:49

Community · Accepted Answer · 2017-05-23 10:28:05Z

1

The EventHandler or procedure of the current execution block has some more code to execute.
You have not called return to stop the execution of the current procedure.

Close() is just another function which will not delete the form immediately. So it continues the execution of the current code.

Please check this answer for more details.

edited May 23, 2017 at 10:28

CommunityBot

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answered Feb 27, 2016 at 6:42

Olivarsham

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1 Comment

Syed Kumail Haider Naqvi Over a year ago

Hmmm, So you mean that the new window would be created, But because of it having no more reference it will eventually be disposed by the garbage collector

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