Question

How do I add the event?
On default after adding the datagrid to the form, it didnt have the rowsadded event.
Then I added this in

private void dataGridView1_RowsAdded(object sender, DataGridViewCellEventArgs e)
{
    MessageBox.Show("Row added", "Error!");
}

Which was able to run, and when I was adding data to the grid, this didn’t trigger. Am I missing a step?

Answer 1

From Code Behind

after InitializeComponent();
add

dataGridView1.RowsAdded += dataGridView1_RowsAdded;

event should change as

private void dataGridView1_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
    MessageBox.Show("Row added", "Error!");
}

KB Shortcut

public MyForm()
{
    InitializeComponent()
    dataGridView1.RowsAdded += (press [tab][tab] now)
}

From designer

You can do this from designer view. go to properties of the grid view and select events tab. find RowsAdded event and double click on it. it will generate event handler and event for you.

Microsoft Visual Studio and C#: How to Visually Add Events to Controls?