Alpha,
You would need to do two things. First, I would add a constraint to the
column indicating that it is the primary key. This would prevent the column
from having duplicate values in it.
As for only allowing A-Z, that's a little harder. The DataColumn
doesn't support regular expressions. What you could do is add an event
handler for when a row is added. When it is, run the contents of the column
through the following regular expression (without quotes) "[A-Z]+". This
will allow only those characters any number of times.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
-
ni**************@exisconsulting.com
"Alpha Zero" <sa**********@hotmail.com> wrote in message
news:ev**************@TK2MSFTNGP09.phx.gbl...
Hi!
I have a datagrid containing single column.
If user adds a new word, I want to check if this word does not contain
any character except A-Z and this word doesn't exists in previous rows .
If it exists, then user should be informed and this word should not be
added to datagrid.
How should I go about it?