textbox csharp


hello guys im having problem have textbox want numbers format these "0.00" input here

im using these command format textbox
textbox.text = string.format("{0:0.00}");

main problem is 

1. need strictly numbers input, if characters try input not display
2. need update textbox 
    ex. if put "50" want textbox update self automatic , value "50" become "50.00"
    follow string.format rule specified 
    
have simple code on update textbox dont know if correct "textbox.text = string.format("{0:0.00}",textbox.text);"

pls need thanks

perhaps should try maskedtextbox.  format property on textbox not force user conform, masked textbox does.

--
mike


Visual Studio Languages  ,  .NET Framework  >  Visual C#



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