How to remove lowercase on a textbox?

Question

I\'m trying to remove the lower case letters on a TextBox..

For example, short alpha code representing the insurance (e.g., \'BCBS\' for \'Blue Cross B

Answer 1

I´d map the value to your abbreviation in a dictionary like:

Dictionary valueMap = new Dictionary();
valueMap.Add("Blue Cross Blue Shield", "BCBS");

string Code = "";
if(valueMap.ContainsKey(txtDesc.Text))
  Code = valueMap[txtDesc.Text];
else
  // Handle

But if you still want the functionality you mention use linq:

string newString = new string(txtDesc.Text.Where(c => char.IsUpper(c).ToArray());