OnClosing

  • Thread starter Thread starter Zach
  • Start date Start date
Z

Zach

Could someone please give me a code example, including the text of the
handler, for the method containing an instruction when the form is closed?

I have found references on the internet to code for the method, but I
get errors. So please be kind enough to answer both questions i.e. about
the handler and the method per se, rather than having a discussion about
the error messages.

Many thanks,
Zach
 
Could someone please give me a code example, including the text of the
handler, for the method containing an instruction when the form is closed?
Click to expand...

Always try the doc that comes generally with samples :
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.onclosing.aspx
or
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.closing.aspx

(not sure if you are looking for the method or the event it raises).
I have found references on the internet to code for the method, but I get
errors. So please be kind enough to answer both questions i.e. about the
handler and the method per se, rather than having a discussion about the
error messages.
Click to expand...

This is almost always a bad strategy. For example in the doc mentionned
above you'll see that the method is obsoleted and should be replaced by
OnFormClosing/FormClosing. If this is the case whatever the sample you'll
use, you'll always have this warning until you use the new method/event....
 
Always try the doc that comes generally with samples :
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.onclosing.aspx

or
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.closing.aspx


(not sure if you are looking for the method or the event it raises).


This is almost always a bad strategy. For example in the doc mentionned
above you'll see that the method is obsoleted and should be replaced by
OnFormClosing/FormClosing. If this is the case whatever the sample
you'll use, you'll always have this warning until you use the new
method/event....
Click to expand...
I found references but got into problems applying them. Hence my
questions for sample code, and not for a reference, i.e., for:

(1.) the handling line
(2.) the method

Simply just that.

Both applicable to C#.

Could you please oblige?

Many thanks,
Zach.
 
I found references but got into problems applying them. Hence my questions
for sample code, and not for a reference, i.e., for:

(1.) the handling line
(2.) the method

Simply just that.

Both applicable to C#.

Could you please oblige?
Click to expand...

As I said earlier you have sample code in the doc. So based on the sample
from
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.formclosing.aspx
it would give something like :

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
FormClosing += Form1_FormClosing;
}
private void Form1_FormClosing(Object sender, FormClosingEventArgs
e)
{
System.Text.StringBuilder messageBoxCS = new
System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "CloseReason",
e.CloseReason);
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Cancel", e.Cancel);
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "FormClosing Event");
}
}
}


If this is not what you are llking for, please be a bit more explicit... If
you still have a problem, you'll need to tell us what it is...
 
As I said earlier you have sample code in the doc. So based on the
sample from
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.formclosing.aspx
it would give something like :

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
FormClosing += Form1_FormClosing;
}
private void Form1_FormClosing(Object sender, FormClosingEventArgs e)
{
System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "CloseReason", e.CloseReason);
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Cancel", e.Cancel);
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "FormClosing Event");
}
}
}


If this is not what you are llking for, please be a bit more explicit...
If you still have a problem, you'll need to tell us what it is...
Click to expand...
Very good, many thanks.
Regards,
Zach
 
Here's some boilerplate that I use in Winapps:

636: /// <summary>
637: /// Saves ContainerForm location when it is about to
close.
638: /// </summary>
639: /// <param name="sender"></param>
640: /// <param name="e"></param>
641: private void ContainerForm_FormClosing(object sender,
FormClosingEventArgs e)
642: {
643: String stringMe = "ContainerForm_FormClosing: ";
644: try
645: {
646: LogFile.WriteLine(stringMe + "starting");
647: if
(this.WindowState.Equals(FormWindowState.Maximized))
648: {
649: Model.FormContainerMaximized = true;
650: }
651: else
652: {
653: Model.CurrentCode =
this.mySearchPane.CurrentCode;
654: Model.FormContainerMaximized = false;
655: Model.FormContainerTop = this.Top;
656: Model.FormContainerLeft = this.Left;
657: Model.FormContainerWidth = this.Width;
658: Model.FormContainerHeight = this.Height;
659: }
660: }
661: catch (Exception ex)
662: {
663: LogFile.WriteLine(stringMe + "ERROR - " +
ex.Message);
664: throw;
665: }
666: }
 
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