Height of dropped-down ComboBox?

[hstijnen]

Hi,

How can I find the height of a combobox when it is dropped down? (the property Height appears not to change)

 

[itsgsd]

You need to determine the height of the dropdown as well as the height of the ComboBox, something like this:

  int NumItems;

  if (ComboBox1->DropDownCount > ComboBox1->Items->Count)
    NumItems = ComboBox1->Items->Count;
  else NumItems = ComboBox1->DropDownCount;

  if (!NumItems) NumItems = 1;

  int Height = ComboBox1->Height + (NumItems * ComboBox1->ItemHeight);

Of course you could use a min function instead of the if/else statement.

Hope this helps.