DropDown comboBox

Been using VB, C# recent study, I have a problem with comboBox, when the DropDown event is, no response, only choose to click on the dropdown box inside values only reaction, do not know what is the problem.

Before is VB which is directly click on the dropdown, will trigger the event, the event is the inside of the C# change, there are other events not, ask for advice.

I want to do is to click the drop-down box when, on the triggering event.

private void comboBox3_DropDown(object sender, EventArgs e)
z = z + 1;
textBox41.Text = z.ToString();

Started by Alvin at November 19, 2016 - 6:22 AM

At 1 comboBox to the form, and then right click comboBox, select properties, find the SelectedIndexChanged events in the event, double click it.

Posted by Arvin at November 22, 2016 - 6:38 AM

Right property saw

Posted by Hyman at November 26, 2016 - 6:57 AM

With the DropDownOpened event

Posted by Otto at December 11, 2016 - 7:42 AM