How do I update an entity object in GridView

[Sub0]

I am using \[code\]Entity Framework\[/code\] with ASPX webform. In my \[code\]GridView\[/code\](GV) I make all my columns with \[code\]ItemTemplates\[/code\] and \[code\]EditTemplates\[/code\]. When in edit mode I can select a new value, but it does not update the record. In the GV I have a \[code\]DropDownList\[/code\] which is set to a \[code\]EntityDataSource\[/code\] that matches it's related table for that field. What steps do I need, what events do I need to handle? I have tried the \[code\]RowEditing\[/code\] and \[code\]RowUpdating\[/code\] events, but have no useful code thus far. If you want me to show you some bad code - just ask and I will be more than happy too. I just need some guidance on wiring this up.