How to display the AutoComplete popup programmatically, when a textbox is enabled with AutoComplete feature?

AutoComplete popup can be displayed programmatically.

The following code demonstrates the same.

this.autoComplete1.AutoCompletePopup.ParentControl = this.textBox1;

this.autoComplete1.AutoCompletePopup.ShowPopup(Point.Empty);
Me.autoComplete1.AutoCompletePopup.ParentControl = Me.textBox1

Me.autoComplete1.AutoCompletePopup.ShowPopup(Point.Empty)

AutoComplete popup programmatically