C#•4y ago

❔ WPF Textbox decimal only

Hello, i'd like to know how we are supposed to configure our textbox in order to accept only decimal number ? Currently i've this but i do not find a ny good way to do it

ElioOP•12/13/22, 2:16 PM

sibber•12/13/22, 2:19 PM

wpf?

ElioOP•12/13/22, 2:20 PM

yes

sibber•12/13/22, 2:21 PM

handle and validate

sibber•12/13/22, 2:22 PM

set to true if its not valid

ElioOP•12/13/22, 2:25 PM

so i had this then i just write some code in the method in order to select only the key i want. That it ?

sibber•12/13/22, 2:25 PM

not KeyDown

sibber•12/13/22, 2:25 PM

then you check if the text is valid, in your case if its a decimal number

ElioOP•12/13/22, 2:26 PM

aww ok cause preview key check only the last key pressed instead of the whole text

ElioOP•12/13/22, 2:29 PM

i will look some regex expression or something like this thanks i didn't know there was preview event

sibber•12/13/22, 2:29 PM

sure

sibber•12/13/22, 2:29 PM

you can also use

ElioOP•12/13/22, 2:30 PM

i will do that once i've make sure that my string is a decimal

sibber•12/13/22, 2:32 PM

you can use that to check if its a decmial

ElioOP•12/13/22, 2:34 PM

oohhhh i thought it just convert my number from string to double or others

sibber•12/13/22, 2:35 PM

also returns whether it can be converted or not

ElioOP•12/13/22, 2:37 PM

insane

now i just need to avoid multple dot

ElioOP•12/13/22, 2:37 PM

thanks a lot you give me all the int i needed

sibber•12/13/22, 2:40 PM

Accord•12/14/22, 3:01 PM

Was this issue resolved? If so, run

/close

/close

otherwise I will mark this as stale and this post will be archived until there is new activity.