Reset the datamember as well as the datasource. Set the datamember to a blank string before attaching to a new datasource. It's trying to use the old datamember on a new datasource and will throw ...

I've since discovered that using a Bindinglist as my collection of objects and binding the Datagridview to it will allow me to have any changes to the object elements be automatically updated in ...

Let the user know what direction their data is sorted in when using a DataGridView.