remove  from textbox

Question

Hello

In textbox user enter something like this ABFREE on insert sql query from C# i have to remove this special charater 

I already used trim but not working cmd1.Parameters.Add(new SqlParameter("@CodeName", TextBox4Col.Text.ToUpper().Trim()));

how to do so

Answer 1

Hi @RAVI,

You can use the Regex.Replace method.

If you only have this special character(), use the following code:

string inStr = TextBox4Col.Text.ToString();
string outStr = Regex.Replace(inStr, "\u0002", "");
  //.....
cmd1.Parameters.Add(new SqlParameter("@CodeName", outStr));

If there may be other special characters that need to be removed, you can use the following code.

This will replace all non-alphabets and non-numbers.

string inStr = TextBox4Col.Text.ToString();
string outStr = Regex.Replace(inStr, @"[^\w\d]", "");

Best regards,
Lan Huang

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