How do I Update/Reload DataGridView BindingSource?

Question

I am new to C#, Windows Forms, and datagridviews. I have a tabbed form: tab 1 displays a datagridview of the exercises table; tab 2 is for adding a new exercise to the table. Th

Answer 1

You have to reload your Dataset with the information from the database after doing the insert. It's not automatic!

Answer 2

Create a LoadDataGridView method:

private void LoadDataGridView() {
    // Fill a DataAdapter using the SelectCommand.
    DataAdapter da = null;

    // The Sql code here

    // In case something fails, bail out of the method.
    if (da == null) return;

    // Clear the DataSource or else you'll get double of everything.
    if (exerciseListDataGridView.DataSource != null) {
        exerciseListDataGridView.DataSource.Clear();
        exerciseListDataGridView.DataSource = null;
    }

    // I'm doing this off the top of my head, you may need to fill a DataSet here.
    exerciseListDataGridView.DataSource = da.DefaultView;

}

Now all you have to do is call that method in both your Form1_Load() and at the end of your InsertExcercise(). If you have to use a DataSet, don't forget to dispose of the DataAdapter object at the end to conserve resources.