I started a course in C# last night. I am trying to program a calculator for a console application. What I am trying to do is test that a value passed isNumeric
The variable is...
string input1;
To convert this to a number I'm using...
number1 = double.Parse(input1);
But I want to test that it's a number before I parse it, I can test for an empty value...
if (input1 == "")
{
Console.WriteLine("Invalid entry.");
goto myLabel_1;
}
But if I try
if (Char.IsNumber(input1)), I get a cannot convert from 'string' to 'char' error.
Any suggestions on how to check that a value is not an alpha character?
Thanks in advance