How to perform partial search and return the full word with Regex.Match?

Question

I'm trying to handle my exceptions based on regular expressions. To do this, all my constraints start the same way. (CCC_TABLE_COLUMN_TYPECONSTRAINT)

Ex:

CCC_USER_NAME_UNIQUE

CCC_BOOKS_TITLE_UNIQUE.

I'm not able to return the entire string.

try
{
      await DbContext.SaveChangesAsync().ConfigureAwait(false);
}catch(Exception ex)
{
      regex = new Regex("CCC");
      var reg1 = regex.Match(ex.toString());         
} 

In reg1 only "CCC" is returned. How do I return the entire constraint name?

Answer 1

You need to include matching all the parts

CCC_[A-Z]+_[A-Z]+_[A-Z]+

Assuming you are only using upper case letters in the names. If not replace the [AZ] with an expression that would match.