Changing text to Uppercase as it's entered into control

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7 total messages Started by John F. Wed, 18 May 2005 07:12

#18

Author: John F.
Date: Wed, 18 May 2005 07:12

14 lines
1117 bytes

Hi!

I'm trying to display all text in a control in uppercase as I enter it. I've tried using the 'text_changed" method of, say, a combobox, as follows:

this.myComboBox.Text.ToUpper()

but this doesn't cause the text to appear in uppercase.

How can i do this?

Thanks for all help!

John F.

Re: Changing text to Uppercase as it's entered into control

#19

Author: Marc Rohloff TeamB
Date: Thu, 19 May 2005 01:55

13 lines
1559 bytes

On 18 May 2005 00:12:31 -0700, John F. wrote:

> I'm trying to display all text in a control in uppercase as I enter it. I've tried using the 'text_changed" method of, say, a combobox, as follows:
> this.myComboBox.Text.ToUpper()
> but this doesn't cause the text to appear in uppercase.

> How can i do this?

Handle the KeyPress event and convert the Key to uppercase.

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

Re: Changing text to Uppercase - not quite there yet....

#20

Author: John F
Date: Wed, 25 May 2005 07:33

41 lines
2143 bytes

Thanks, Marc.

I know I'm missing something incredibly obvious but I've tried a few variations without success:

private void cboxDiag1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
     Char.ToUpper(e.KeyChar);
}
 and

private void cboxDiag1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
   char myChar = e.KeyChar;
   Char.ToUpper( myChar );
   e.KeyChar = myChar;
}

But no success...

Could you please steer me in the right directior?

Thanks!

John F.


"Marc Rohloff [TeamB]" <"on request"> wrote:
>On 18 May 2005 00:12:31 -0700, John F. wrote:
>
>> I'm trying to display all text in a control in uppercase as I enter it. I've tried using the 'text_changed" method of, say, a combobox, as follows:
>> this.myComboBox.Text.ToUpper()
>> but this doesn't cause the text to appear in uppercase.
>
>> How can i do this?
>
>Handle the KeyPress event and convert the Key to uppercase.
>
>-- 
>Marc Rohloff [TeamB]
>marc rohloff -at- myrealbox -dot- com

Re: Changing text to Uppercase - not quite there yet....

#21

Author: Marc Rohloff TeamB
Date: Wed, 25 May 2005 20:26

7 lines
1469 bytes

On 25 May 2005 00:33:47 -0700, John F wrote:

e.KeyChar = Char.ToUpper(e.KeyChar);

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

Re: Changing text to Uppercase - 'ReadOnly' error....

#22

Author: John
Date: Fri, 27 May 2005 07:19

16 lines
1622 bytes

Hmmm.... I tried this code and get a compiler error:

'Property or indexer System.Windows.Forms.KeyPressEventArgs.KeyChar 
cannot be assigned to - it is readonly.

I'm using it in a ComboBox... I wonder if that makes a difference?

Thanks, once again, for your help, Marc.

John F.

Marc Rohloff [TeamB] wrote:
> On 25 May 2005 00:33:47 -0700, John F wrote:
> 
> e.KeyChar = Char.ToUpper(e.KeyChar);
>

Re: Changing text to Uppercase - 'ReadOnly' error....

#23

Author: Marc Rohloff TeamB
Date: Fri, 27 May 2005 23:59

17 lines
1880 bytes

On Fri, 27 May 2005 00:19:24 -0700, John wrote:

> 'Property or indexer System.Windows.Forms.KeyPressEventArgs.KeyChar 
> cannot be assigned to - it is readonly.

Yes youre right, my bad.

You should be able to handle the TextChanged event something like:

ComboBox thisBox = ( ComboBox )sender;
int cursorPosition = thisBox.SelectionStart;
thisBox.Text = thisBox.Text.ToUpper();
thisBox.SelectionStart = cursorPosition;

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

Re: Changing text to Uppercase - 'ReadOnly' error....

#24

Author: John
Date: Sat, 28 May 2005 22:39

21 lines
1846 bytes

Thanks, again, Marc. Couldn't do it without you!

John.

Marc Rohloff [TeamB] wrote:
> On Fri, 27 May 2005 00:19:24 -0700, John wrote:
> 
> 
>>'Property or indexer System.Windows.Forms.KeyPressEventArgs.KeyChar 
>>cannot be assigned to - it is readonly.
> 
> 
> Yes youre right, my bad.
> 
> You should be able to handle the TextChanged event something like:
> 
> ComboBox thisBox = ( ComboBox )sender;
> int cursorPosition = thisBox.SelectionStart;
> thisBox.Text = thisBox.Text.ToUpper();
> thisBox.SelectionStart = cursorPosition;
>

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