Re: A Dialog bug (Edited) - C# Discussion Boards

We will either find a way, or make one!
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C(''')(''')

22-Jan-10 7:04

I'm sorry everyone but I posted the wrong problem so here it goes again..

When you try to set the rightToLeft property inside the modal form, it vanishes..

this.RightToLeft = RightToLeft.Yes;

It's obvious, it's a bug.. Can you think of any workaround??
Thank you everyone!

Som Shekhar22-Jan-10 7:20

22-Jan-10 7:20

HA HA HA... how many times are you gonna change your question? Big Grin | :-D

anyways, yes, looks like changing this property is sending a dialog result somehow add a this.DialogResult = DialogResult.None; after your this.RightToLeft = RightToLeft.Yes;.

So it becomes:

this.RightToLeft = RightToLeft.Yes;
this.DialogResult = DialogResult.None;

Muammar©22-Jan-10 20:10

We will either find a way, or make one!
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C(''')(''')

22-Jan-10 20:10

It works, though I lose focus of the calling form.

Som Shekhar22-Jan-10 20:16

22-Jan-10 20:16

did you do this? if you are loosing focus even after this, i gotta give up because i tested this code.

I am typing it here so check for spell errors.

Original Form:

TestForm form = new TestForm ();
form.ShowDialog();

Modal Form:

public partial class TestForm : Form
  {
      public TestForm()
      {
          InitializeComponent();
          ChangeRightToLeft();
      }

      private void ChangeRightToLeft()
      {
          this.RightToLeft = RightToLeft.Yes;
          this.DialogResult = DialogResult.None;
      }
  }

loyal ginger22-Jan-10 7:26

22-Jan-10 7:26

Put

this.RightToLeft=RightToLeft.Yes;

in the dialog class' constructor instead of the form_load handler. That will solve the problem and a DialogResult.None will not be returned.

Ravi Bhavnani22-Jan-10 7:47

22-Jan-10 7:47

Works fine in the form's load handler. I don't believe the disappearing has anything to do with changing this property.

/ravi

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loyal ginger22-Jan-10 8:08

22-Jan-10 8:08

I just created a test project. The problem in the original post was verified in my project. Sure enough, the dialog form vanished right after it was created and shown briefly on screen. Maybe it's a bug???

Ravi Bhavnani22-Jan-10 8:11

22-Jan-10 8:11

It's possible. I wasn't able to reproduce it on my VS2008, .NET 3.51, XP SP3 config.

/ravi

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Muammar©22-Jan-10 20:30

We will either find a way, or make one!
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(- .-)
C(''')(''')

22-Jan-10 20:30

Hey there Rav, long time no see Smile | :)

Yes, it works fine for non-modal forms, but try to call a form using the ShowDialog() and once loaded, try to change its RightToLeft property as follows:

this.RightToLeft = RightToLeft.Yes;

Re: A Dialog bug (Edited²)

Ravi Bhavnani23-Jan-10 5:16

23-Jan-10 5:16

Hi Muammar, both modal and modeless forms work for me. I set each form's RightToLeft property in the loading handler. If you like, I can send you a .zipped project but there's nothing special going on here.

[Edit]
I just re-read your post. Let me try to change the property once it's finished loading.

Cheers,

/ravi

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Ravi Bhavnani23-Jan-10 5:23

23-Jan-10 5:23

I just confirmed that I can change the RightToLeft property in the OnLoad handler as well as in code (in response to a button click), for both modal and modeless dialogs.

XP SP3, VS2008, .NET 3.5 SP1 (3.5.30729.4926).

/ravi

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Muammar©23-Jan-10 5:46

We will either find a way, or make one!
(\ /)
(- .-)
C(''')(''')

23-Jan-10 5:46

Hmmm, I'm runing the same Windows and VS version Confused | :confused:

And apparently, I'm not the only one with this problem
http://www.codeproject.com/Messages/1443762/RightToLeft-bug-with-ShowDialog.aspx[^]

Ravi Bhavnani23-Jan-10 5:50

23-Jan-10 5:50

I guess there's something else that causes it to work for me and not for you guys. I happen to be running IE7 (not that I think that should make a difference, but you never know). Frown | :(

/ravi

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Muammar©23-Jan-10 5:57

We will either find a way, or make one!
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(- .-)
C(''')(''')

23-Jan-10 5:57

Ravi Bhavnani wrote:
I happen to be running IE7 (not that I think that should make a difference, but you never know).

Probably.

Muammar©22-Jan-10 20:27

We will either find a way, or make one!
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(- .-)
C(''')(''')

22-Jan-10 20:27

Thanks, but I'm not setting it from the form_load handler and it works fine even between the constructor and the form_load "when calling it after the initialization of the object", I just cant do it while the form is loaded but thanks to the other strange workaround in the thread by "some shekhar", it's working now although the calling form disappears now Laugh | :laugh:

Ravi Bhavnani22-Jan-10 7:46

22-Jan-10 7:46

Works for me.

/ravi

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A Dialog bug [modified]

Muammar©22-Jan-10 6:27

We will either find a way, or make one!
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C(''')(''')

22-Jan-10 6:27

Form2 f2 = new Form2();
f2.ShowDialog();
f2.RightToLeft = RightToLeft.Yes;

And the form disappears!!
Any workaround??

modified on Friday, January 22, 2010 12:41 PM

Som Shekhar22-Jan-10 6:38

22-Jan-10 6:38

Muammar© wrote:
Form2 f2 = new Form2().ShowDialog();

Does this code work? new Form2().ShowDialog(); returns DialogResult and not a form as you write here.

try:

Form2 form = new Form2();
form.RightToLeft = RightToLeft.Yes;
form.ShowDialog();

We will either find a way, or make one!
(\ /)
(- .-)
C(''')(''')

22-Jan-10 6:43

I'm sorry, I just edited my post, the code was what you just posted

loyal ginger22-Jan-10 6:45

22-Jan-10 6:45

Your code has a different order: after you call ShowDialog(), it enters its own message loop. Anything after that call will not be executed until the dialog is dismissed.

Som Shekhar22-Jan-10 6:49

22-Jan-10 6:49

Point taken.

again, you shouldn't be calling

form.RightToLeft = RightToLeft.Yes;

after form.ShowDialog();

This is because when you call ShowDialog, the form is shown in dialog form. the next line is run only when the form is closed with a dialog result.

Now, the code that you want to run will only happen when you do:

Form form = new Form();
form.Show();
form.RightToLeft = RightToLeft.Yes;

In this case, when the last line is executed, the form doesn't disappear but it goes behind your main form. Try minimizing your form and voila, you get your form.

loyal ginger22-Jan-10 6:43

22-Jan-10 6:43

You beat me by a minute. Good answer!

loyal ginger22-Jan-10 6:39

22-Jan-10 6:39

You probably want to do this:

Form2 f2 = new Form2();
f2.RightToLeft = RightToLeft.Yes;
f2.ShowDialog();