I am trying to populate a DataGridView based on the selected item in a ComboBox, I have this part working.
However, I need to be able to clear the grid before adding the new data from a new item rather than it just adding on to the end.
How do I clear a DataGridView before adding items to it?
Firstly, null the data source:
this.dataGridView.DataSource = null;
Then clear the rows:
this.dataGridView.Rows.Clear();
Then set the data source to the new list:
this.dataGridView.DataSource = this.GetNewValues();