right trim a column in a datagridview C#

Question 1
I am looking to right trim data in a datagrid view, when I pull text from the database it right pads spaces up to the 255 I have specified (it is free text for the user to enter).  If I RTRIM the data in SQL the column becomes read only.

Question 2
Where is a listing of cell style formats like "C" in the example below ? Is there a "P" for percent, an "S" for string etc... ?  I can find examples of using but not a list of available formats.
Example:
dataGridView.Columns["five_offinvoice"].DefaultCellStyle.Format = "C";
LVL 2
abruskoAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Dirk HaestProject managerCommented:
For trimming values in gridview follow this code-


private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (e.RowIndex > -1)
           {
                if (e.Value != null)
               {
                   e.Value = e.Value.ToString().Trim();
                }
           }  
      }
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Dirk HaestProject managerCommented:
Formatting types: http://msdn.microsoft.com/en-us/library/26etazsy.aspx

How to: Format Data in the Windows Forms DataGridView Control
http://msdn.microsoft.com/en-us/library/f9x2790s.aspx
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Development

From novice to tech pro — start learning today.