TextChanging Event of TextBox

[Joe Su]

Is there a way to make a control based on Windows.Forms.TextBox, and it
has a TextChanging event fired before Text property value change.
otherwise there are two properties in the event args
1. ChangedText : it is the text after changed
2. Cancel : if user set Cancel to True then cancel the change of text,
and do not fire the TextChanged event

Expecting...

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[Dmytro Lapshyn [MVP]]

Hi Joe,

If you need to do some input validation, you might be better off handling
the KeyUp, KeyDown and KeyPressed events - that's what Microsoft recommends
in its 70-316 exam preparation book, if I am not mistaken.

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Joe Su" <ex********@sohu.com> wrote in message
news:O7**************@TK2MSFTNGP10.phx.gbl...

Is there a way to make a control based on Windows.Forms.TextBox, and it
has a TextChanging event fired before Text property value change.
otherwise there are two properties in the event args
1. ChangedText : it is the text after changed
2. Cancel : if user set Cancel to True then cancel the change of text,
and do not fire the TextChanged event

Expecting...

*** Sent via Developersdex http://www.developersdex.com ***