How can I set autosuggest popup to open when the control gets the focus?

You can use the ProcessAutoComplete method inorder to achieve this.

C#

private void textBox1_GotFocus(object sender, EventArgs e)

{

this.autoComplete1.ProcessAutoComplete (this.textBox1.Text );

}

VB

Private Sub textBox1_GotFocus(ByVal sender As Object, ByVal e As EventArgs)

Me.autoComplete1.ProcessAutoComplete(Me.textBox1.Text)

End Sub

Also,we have the SingleClick property which displays the AutoSuggest list when the user Clicks on the target control.

C#

this.autoComplete1.SingleClick =true;

VB

Me.autoComplete1.SingleClick = True