user interface - .Net: how can I have a combobox with multitple fields of its data source as Displaymember? -

How do I create a console with many areas of its data source without adding additional columns in my data source as your display member Can i do

I mean I want a combobox with displaymember with "id" + "-" "name".
1 - black
2 - white
3 - red

I do not want to add additional columns to my data source.

Thanks

is not bound to multiple properties (in WinForms). You must expand your DataTable with a computed column and bind it with this new column.

  dataTable.Column.Add ("IdAndName", typef (string), "id + name"); ComboBox.DataSource = DataTable; ComboBox.DisplayMember = "IdAndName";  

Look for a reference to valid expressions for the calculated columns. You may have to use convert .

  dataTable.Columns.Add ("IdAndName", typef (string), "convert (id, 'system.String') + name");