Hi Stephen,
Thanks for your interest in Syncfusion Products.
1) The entire text of the cell can be made selected while that cell gets focus by means of ActivateCurrentCellBehavior property, setting GridCellActivateAction to SelectAll. Here is the code for your reference.
this.gridControl1.ActivateCurrentCellBehavior = GridCellActivateAction.SelectAll;
2) With the .NET framework 3.0 application, .NET v3.5 dlls can be referred by default.
Please refer to the following sample in which the application is created with .NET 3.0 framework and the grid refers to the Syncfusion .NET 3.5v assemblies.
http://files.syncfusion.com/support/samples/Grid.Windows/7.3.0.20/F89143.zipRegards,
Rajadurai