c# string operation

[C# Programming]

Hi All,

say i have these inputs strings:
string input_1 = " ABCD ";
string input_2 = " A BC D ";
string input_3 " A B C D ";

I want to convert these strings to the follows:
input_1 = " ABCD";
input_2 = " A BC D";
input_3 " A B C D";

basically remove all the blanks after the last letter, i know the string.TrimEnd() function in .Net can be used to achieve my requirement. Is there another way (without using string.TrimEnd() function) to achieve the same as String.TrimEnd() does?

Many thanks