[C#] A TextBox that only accepts numbers

[jacquesgambl36]

This vid went viral on Liechtenstein

[PurgeToDeath]

Thanks

[hoilungly83]

thank you. took me a year to get this done.

[TheodenN]

Thank you so much. This really helped me out. Nice and simple code.

[lpguitarist06]

Wow sorry, i was on my iphone and read the code wrong :( works now :D

[lpguitarist06]

Thanks! But why is my backspace not working? I went over it several times and i swear i have same as u

[rajunpatel21]

Thanks........

[sachintha1991]

hey when i try this program ..it trows an error on that e.KeyChar thing..i dont know the reason can u please help me

the error is

Error 1 'System.Windows.Forms.KeyEvent­Args' does not contain a definition for 'KeyChar' and no extension method 'KeyChar' accepting a first argument of type 'System.Windows.Forms.KeyEvent­Args' could be found (are you missing a using directive or an assembly reference?)

[Mitche23]

@sachintha1991 I don't know i you solved it yet, but you misspelled it is KeyPressEventArgs

[luklew]

Thanks a lot!

[jorgemaiadin]

can you tell how i can read negative values please?

thanks

[sefaixan]

@jorgemaiadin : if (!Char.IsDigit(input) && input != 8 && input != 46 && input != 45)

Follow the code above. ASCII Character for negative is 45 so exempt it form validation as he did for back space and I also changed to accept decimal values with period . that has ASCII code as 46.

[JakeEricson]

Very helpful.

[vlad781]

hmm. this code interferes with the actual 'calculator' part of my calculator.. even though the code has its own instance!

[me4u]

i dont understand why e.KeyChar. What is the "e" for in e.KeyChar

[mrskillerishere]

@me4u

dude read the code :) Once you do it e var stands for KeyPressEventArgs its up there in the void :)

[stmarkonius]

Thanks :)

[marshalldj]

very very nice man, thanx a lot!