How to filter DataGridView results on the fly? (VB)

问题

I have a DataGridView showing information stored in a database.

Say I have a Column for subjects (Maths, English and Science), how can I make it so the DataGridView will only show the subject I choose (preferably via a dropdown box). So if I have English selected in the dropdown box, it will only show the data entries that have Subject = English.

I'm pretty clueless so help is greatly appreciated, thanks. (This is in VB)

回答1:

You can filter on your dataview and showing that on the datagrid.

Dim view as new DataView //'Declare a new dataview
view.Table = someDataSet.Tables("Sometable") //'the table you're working with
view.RowFilter = "subject = 'English'" //'The filter as you were writing a where clause
someDatagridview.DataSource = view //'bind it to DGW

来源：https://stackoverflow.com/questions/15348224/how-to-filter-datagridview-results-on-the-fly-vb