C# Extract numbers from a String

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Ready to use method to extract only numbers from a string.

// this is the string that you will be passing from another class
string str = "1H2e34eo5#6@@7*^8)-9U0";

// This is the method you can use to process your string
public string GetNumbersFromAString(string str){

  string onlyNumbers = "";
  
  for (int i = 0; i < str.Count(); i++)
  {
    if (char.IsDigit(str[i]))
    {
        onlyNumbers += str[i];
    }
  
  return onlyNumbers;
}

// returned string output: 1234567890

Instructions:
To use the method – copy and paste it in your class, rename string variables and enter or pass a string you need to extract numbers from.

C# Methods