How to handle key press event in WIndows Application VS 2008 C#

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VS2008

I have created windows application. Form having 10 textbox and three buttons.
My requirement is that, on Up and Down keys, cursor should focus to textox according to their
tabindex(0 to 9) , also i want to close application on escape key and on enter key should save the record.

I have never worked on keys events.
How do i do?
Please help me.

Thanks

Posted 19-Sep-14 1:14am

Ganesh11021423

Updated 19-Sep-14 1:19am

v3

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Comments

[no name] 19-Sep-14 9:06am

You do this like everything else. Handle the keypress events and do what you want to do with it.

Sergey Alexandrovich Kryukov 19-Sep-14 10:50am

Wrong event, by the way. I answered the question.
—SA

[no name] 19-Sep-14 11:09am

And how, exactly, are OnKeyUp and OnKeyDown not key press events?

Sergey Alexandrovich Kryukov 19-Sep-14 11:42am

First of all, names you mentioned are not event names at all.
Your notion of "press" is wider than that used in .NET, where there are low-level events KeyUp and KeyDown, and higher-level event KeyPress. For arrows, the event KeyPress is not suitable. Usually, if some one says "key press event" (not "keyboard event"), "KeyPress" event us assumed. This is what I mean.
—SA

Ganesh11021423 19-Sep-14 9:15am

Thanks Wes Aday

Do you have any sample or reference ?

Thanks

Sergey Alexandrovich Kryukov 19-Sep-14 10:46am

It depends on application type. WPF? Silverlight? Forms? ASP.NET? Anything else?
—SA

2 solutions

Solution 1

This is not KeyPress event; these are lower-level keyboard events KeyDown, KeyUp, where you work not with characters (they are not yet calculated), but the key events. The information on the key is passed to your handler in a event argument parameter. Alternatively, you can override virtual methods OnKeyDown, OnKeyUp. Further detail depend on the application type. For container controls or UI elements, you may need to handle respective Preview*** events.

—SA

Posted 19-Sep-14 4:48am

Sergey Alexandrovich Kryukov

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

george4986 · Accepted Answer · 2014-09-19T19:26:00

try this sample code

C#

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
       {
           if (keyData == (Keys.Escape))
           {
               this.Close();
               return true;
           }
           if (keyData == (Keys.Enter))
           {
             ////save code here
               return true;
           }
           if (keyData == (Keys.Down))
           {
               SendKeys.Send("{TAB}");
               return true;
           }
           if (keyData == (Keys.Up))
           {
               SendKeys.Send("+{TAB 1}");
               return true;
           }
           return base.ProcessCmdKey(ref msg, keyData);
       }

credits:http://www.autohotkey.com/docs/commands/Send.htm[^]

happy coding
good luck ;-)

How to handle key press event in WIndows Application VS 2008 C#

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How to handle key press event in WIndows Application VS 2008 C#

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