C# Letters Only

C# check if string is only letters and numbers

if (textVar.All(c => Char.IsLetterOrDigit(c))) {
    // String contains only letters & numbers
}

C# Letters Only

if (char.IsControl(e.KeyChar) || char.IsLetter(e.KeyChar))
            {
                return;
            }
            e.Handled = true;

Source: stackoverflow.com

C# only letters

bool result = input.All(Char.IsLetter);

bool result = input.All(Char.IsLetterOrDigit);

bool result = input.All(c=>Char.IsLetterOrDigit(c) || c=='_');

// Instantiate random number generator.  
private readonly Random _random = new Random();  
  
// Generates a random number within a range.      
public int RandomNumber(int min, int max)  
{  
  return _random.Next(min, max);  
}


if (str.All(char.IsDigit)) {
  // String only contains numbers
}

Source: stackoverflow.com

Similar codes

4 votes346 views1 answer
C# get month name
C#
0 vote338 views1 answer
How to specify order of test in c#
C#
2 votes325 views1 answer
Rigidbody2d freeze position
C#
6 votes395 views1 answer
How to change a image with code unity
C#Unity
2 votes346 views2 answers
Unity rotate around axis
C#
89 votes407 views3 answers
How to generate random numbers in c#
C#
-1 vote360 views1 answer
1. Write a program that will determine the multiples of 7 from 1 to 100 in C# looping
C#
0 vote346 views1 answer
Unity error log
C#
0 vote392 views1 answer
Wpf busy indicator
C#
0 vote343 views1 answer
.net core Enable-Migrations' is not recognized as the name of a cmdlet
C#