Regex to only accept Numeric and Decimal Value not any special or character in c#

Question

How do I restrict special characters and character in a Textbox? I'm using this code but I am not restricting special characters and character

code :-

if (!Regex.IsMatch(((Windows.UI.Xaml.Controls.TextBox)sender).Text, @"^\\d*\\.?\\d*$"))
{
    // Write Code 

}

You may want to check this [answer](http://stackoverflow.com/a/19524692/4466640). However this does probably the other of what you need. Make the `TextBox` accept letters and numbers. Just to give some idea. — Hexxed, Mar 01 '17 at 08:20

score 5 · Answer 1 · answered Mar 01 '17 at 08:19

5

if you're using @ in front of string, you don't have to escape characters. So, remove all those extra backslash chars and your regex should work. Like this:

if (!Regex.IsMatch(((Windows.UI.Xaml.Controls.TextBox)sender).Text, @"^\d*\.?\d*$"))

EDIT: use sites like this to test your regex.

answered Mar 01 '17 at 08:19

Nino

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ThanK You Nino . It is working but when i remove Mark (!) . Thanks . – Awaneesh Mar 01 '17 at 10:23

Regex to only accept Numeric and Decimal Value not any special or character in c#

1 Answers1