Re: controlTextDidChange, backspace possible?
Re: controlTextDidChange, backspace possible?
- Subject: Re: controlTextDidChange, backspace possible?
- From: Frederick Cheung <email@hidden>
- Date: Tue, 14 Sep 2004 17:13:48 +0200
On 14 Sep 2004, at 16:35, j o a r wrote:
Store a copy of the string every time you get the notification. If the
string changes to a length > 32, simply restore the previous string.
a good suggestion.
On 2004-09-14, at 16.00, Peter Karlsson wrote:
I have the following code to limit the length of the string I type in
my textfield:
-(void)controlTextDidChange:(id)sender
{
// 32 character limit on my textfield
if ([[myTextfieldOutlet stringValue] length] > 32)
{
[myTextfieldOutlet setStringValue: [NSString
stringWithString:[[myTextfieldOutlet stringValue] substringToIndex:
32]]];
}
}
I can only type 32 characters, wonderful but...
If I have the cursor in the middle of the string the last character
of the string will dissapear for every new character I type.
My idea is to make a backspace so the latest character will not be
typed if the string is already 32 characters in length. Is this
possible to do, or is there better solutions?
The point is, I do not want anything to happen at all if I type and
the string is already 32 characters in length. So I must find a way
to delete the latest character typed regardless of the position in
the string.
Be careful with what you do. Depending on the input method, characters
do not necessarily arrive in your text field one by one. Also it is a
bad idea (tm) to truncate a unicode string at an arbitrary index or
delete some arbitrary range. You could get unexpected results or even
an invalid string.
Fred
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden