How to fill the entire client area of host control with docking windows in WinForms Docking Manager?
Enable docking behavior
DockingManager has a bool property called DockToFill to achieve this behavior. If this property is set to true DockingManager will fill the entire available client area with docked controls. Please refer the below code snippet which illustrates this:
C#
this.dockingManager1.DockToFill = true;
VB
Me.DockingManager1.DockToFill = True
Sample: https://help.syncfusion.com/support/samples/kb/Tools.Windows/TDFill/Fill.zip
UG document link: https://help.syncfusion.com/windowsforms/dockingmanager/dock-window#occupy-whole-window
