'Declaration
 
Public Property MaxDropDownHeightRequest As Double

'Usage
 
Dim instance As ComboBox
Dim value As Double
 
instance.MaxDropDownHeightRequest = value
 
value = instance.MaxDropDownHeightRequest

public double MaxDropDownHeightRequest {get; set;}

Property Value

The default value is 500. 

Note that scrolling will be available if the Height is too low to display all of the items contained in the ItemsSource. 

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ComboBox Class
ComboBox Members