C# Letters Only
if (char.IsControl(e.KeyChar) || char.IsLetter(e.KeyChar))
{
return;
}
e.Handled = true;C# Letters Only
if (char.IsControl(e.KeyChar) || char.IsLetter(e.KeyChar))
{
return;
}
e.Handled = true;c# check if string is only letters and numbers
if (textVar.All(c => Char.IsLetterOrDigit(c))) {
// String contains only letters & numbers
}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
}Copyright © 2021 Codeinu
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