cating varchar to int in c# code example
Example 1: c# how to convert string to int
var myInt = int.Parse("123"); // this one throw exception if the argument is not a number
var successfullyParsed = int.TryParse("123", out convertedInt); //this returns true if the convertion has been successfully done (integer is stored in "convertedInt"), otherwise false.
Example 2: convert string to number C#
int x = 0;
Int32.TryParse(TextBoxD1.Text, out x);