Key press problem
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I have a problem that how to determine which key pressed by user. I have already used 'Keys' enumerator and 'Keycode' property of 'KeyEventArgs' class. It was returned key code only. if user pressed 'A' key, it returned 65. But how can i know that user pressed 'A' or 'a'. In this case i have disabled typing in Text box. Somebody have any idea.
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I have a problem that how to determine which key pressed by user. I have already used 'Keys' enumerator and 'Keycode' property of 'KeyEventArgs' class. It was returned key code only. if user pressed 'A' key, it returned 65. But how can i know that user pressed 'A' or 'a'. In this case i have disabled typing in Text box. Somebody have any idea.
I don't know which event you're handling, but the KeyEventArgs class has a Modifiers property which will tell you if the Ctrl, Shift, or Alt keys are down at the time the key was up or down.
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I have a problem that how to determine which key pressed by user. I have already used 'Keys' enumerator and 'Keycode' property of 'KeyEventArgs' class. It was returned key code only. if user pressed 'A' key, it returned 65. But how can i know that user pressed 'A' or 'a'. In this case i have disabled typing in Text box. Somebody have any idea.
You are probably going to have to be a bit more specific in what you are trying to do.
Pasan148 wrote:
if user pressed 'A' key, it returned 65
That is correct since 65 is the ASCII code for A
Pasan148 wrote:
how can i know that user pressed 'A' or 'a'
If the user entered a lower case 'a' the ASCII code would be 97.
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I have a problem that how to determine which key pressed by user. I have already used 'Keys' enumerator and 'Keycode' property of 'KeyEventArgs' class. It was returned key code only. if user pressed 'A' key, it returned 65. But how can i know that user pressed 'A' or 'a'. In this case i have disabled typing in Text box. Somebody have any idea.
The KeyPress event passses a KeyPressEventArgs which holds the KeyChar, i.e. the char that the user intends when he types a key or key combination that produces some text. This is the event you should use to consume text input. The KeyDown and KeyUp events also fire for key actions that don't produce visible text, such as the control key. They hold a KeyEventArgs that has all possible information about a key and the key modifiers. These are the events you could use to filter keyboard input. BTW: Control.ModifierKeys is always up to date, but seldom needed. PS: is something wrong with the documentation? did Google break down? Read up on the classes you use! :)
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