C# : Check value stored inside string object is decimal or not

Question

in C# , how can i check whether the value stored inside a string object( Ex : string strOrderId=\"435242A\") is decimal or not?

Answer 1

This simple code will allow integer or decimal value and rejects alphabets and symbols.

      foreach (char ch in strOrderId)
        {
            if (!char.IsDigit(ch) && ch != '.')
            {

              MessageBox.Show("This is not a decimal \n");
              return;
            }
           else
           {
           //this is a decimal value
           }

        }