Question

In order to make my program more elegant and better organized in concrete case I would like to change DataGridView1variable with referenced variable on top of my Form1 class

Private aDgv As DataGridView

And assign value in Form1_Load

aDgv = DataGridView1

After that I can use aDgv variable across that Form.
Except in such case:

Private Sub aDgv_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles aDgv.KeyDown
aDgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect
'etc...
End Sub

Where I get an error:

Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
And aDgv variable after Handles clause is blue underlined.

What to do to get rid of error and get Handles aDgv.SomeEvent to work?
Of course, with referenced aDgv instead of original control name DataGridView1.

Answer 1

The minimal answer is to add WithEvents to aDgv:

Private WithEvents aDgv As DataGridView