The bug of InputPane?

  • Thread starter Thread starter Dolphin White
  • Start date Start date
D

Dolphin White

I have two forms, one named FormA, another named FormB, and has the code as
list:

code in FormA:

FormB dlg = new FormB(this);
dlg.ShowDialog();

code in FormB:
_parent.Hide(); //_parent is the parameter passed by constructor
.......
_parent.Show();
_inputPanel.Enabled = false; // <--- Throw an exception, no detail
information.


But if I change the code as below:
code in FormB:
_parent.Hide(); //_parent is the parameter passed by constructor
.......
_inputPanel.Enabled = false;
_parent.Show(); //It works fine.

Why the second one works fine, and the first one thrown an unknown
exception?

Thanks!
 
The exception is most likely caused by the fact that FormA does not have a
Menu associated with it, whereas FormB does. It works with your second case
because FormA is hidden and FormB (which probably has a Menu) is shown.
InputPanel.Enabled will only work if you have a mainmenu associated with
the currently visible Form.

The solution would be to place a Menu on your FormA. It can even be empty.

-Armin

This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------
| From: "Dolphin White" <[email protected]>
| Subject: The bug of InputPane?
| Date: Wed, 3 Sep 2003 09:17:18 +0800
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|
| I have two forms, one named FormA, another named FormB, and has the code
as
| list:
|
| code in FormA:
|
| FormB dlg = new FormB(this);
| dlg.ShowDialog();
|
| code in FormB:
| _parent.Hide(); //_parent is the parameter passed by constructor
| ......
| _parent.Show();
| _inputPanel.Enabled = false; // <--- Throw an exception, no detail
| information.
|
|
| But if I change the code as below:
| code in FormB:
| _parent.Hide(); //_parent is the parameter passed by constructor
| ......
| _inputPanel.Enabled = false;
| _parent.Show(); //It works fine.
|
| Why the second one works fine, and the first one thrown an unknown
| exception?
|
| Thanks!
|
|
|
|
 
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