How to refresh datagridview when closing child form?

Question

I\'ve a dgv on my main form, there is a button that opens up another form to insert some data into the datasource bounded to the dgv. I want when child form closes the dgv a

Answer 1

You're creating a new instance of the main form which isn't effecting the actual main form instance. What you need to do is, call the code on the main form itself, just like the code you say works on the button click:

private void frmNew_FormClosing(object sender, FormClosingEventArgs e)
{
    this.itemCategoryBindingSource.EndEdit();
    this.itemsTableAdapter.Fill(myDatabaseDataSet.Items);
    this.dataGridView1.Refresh();
}