Question

I have a Database table that I want to display in a DataGridView. However, it has several foreign keys and I don’t want to show the integer that represents the other Table to the user.

I have this DataTable with a column userId I have another DataTable with a column id, and a column username

I want the DataGridView to show the username instead of userId where the userId = id.

How can I do this? I also have to do this on several columns in the same table to be displayed.

edit: windows forms, not web forms.

Answer 1

How are you populating the DataTable? You can specify custom SQL with the joins and appropriate columns to the .SelectCommand of a DataAdapter or specify the custom SQL in the .CommandText of a xxxCommand object.

Eg

myAdapter.SelectCommand = 'Select a.column1, a.column2, b.username from tablea a inner join tableb b on b.userid = a.userId' 

Or

myCommand.CommandType = Text; myCommand.CommandText = ''Select a.column1, a.column2, b.username from tablea a inner join tableb b on b.userid = a.userId'; 

Or as has been mentioned, you could create a view or storedproc in your database and call that.