Question

i have a string array with values { "01.0", "01.4", "01.5", "0.20", "02.5", "02.6", "03.0", "03.2" }
how do i filter integer values (1,2,3) from this using C#?

Answer 1

First do a select to convert the string values to decimals. Then use the Remainder function to find which values have a zero remainder when divided by 1. That should get you only integer values.

var array = new[]{"01.0", "01.4", "01.5", "02.0", "02.5", "02.6", "03.0", "03.2"};

array.Select(i => Decimal.Parse(i)).Where(d => Decimal.Remainder(d, 1) == 0);