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C# 2010 working with strings

Sie Ste

In a C#.net 2010 application, I need to only select alphabetic characters (A to Z) from a large textbox where users can enter anything. These alphabetic characters can be in upper or lower case. I need to concantenate the results together. No other characters are suppose to be selected. Thus can you tell me how to accomplish this task?

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Vulpes14y ago
Accepted answer
The basic code needed to do that would be as follows:

var sb = new System.Text.StringBuilder();

foreach(char c in textBox1.Text)
{
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) sb.Append(c);
}

string result = sb.ToString();
MessageBox.Show(result);
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