c# determining a string input is in char or hex format

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C#3.0

C#

Hi All,

I have four textboxes where user can enter value either in <code>char</code> or in <code>hex</code> format. The value which user will enter is a delimiter value to export records into file.

But this can have two exceptions like <code>\n</code> and <code>\t</code> can also be inputed by user for export format.

Now the problem is how to determine that user has inputed value in hex or char format. So that I will convert into one standerd format and queue it for export.

Thanks