Check if DateTimePicker calendar is dropped down

Question

How does one go about checking if a DateTimePicker Control is currently displaying its calendar?

By comparison, checking a ComboBox to see if its drop down list is displayed is so simple:

if (comboBox.DroppedDown)
  //do something

Any ideas on how to achieve the same result for a DateTimePicker's calendar?

Answer 1

I don't see one either. You could create a bool to indicate whether it's dropped down.

Set it to true in the DropDown event.

Occurs when the drop-down calendar is shown.

Set it to false in the CloseUp event.

Occurs when the drop-down calendar is dismissed and disappears.

---

I noticed the snippet you typed in your question:

if (comboBox.DroppedDown)
    //do something

If you're just trying to do something when the calendar is displayed, put your code in (or call your code from) the DropDown event.

Answer 2

You can try implenting your self

private void DateTimePicker1_DropDown(object sender, 
    System.EventArgs e)
{
  myVar = true; 
}

private void DateTimePicker1_CloseUp(object sender, 
    System.EventArgs e)
{
  myVar = false;    
}