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若要通過代碼調整窗格的大小，必須使用SetSize方法將最大和最小窗格寬度設置為相同的大小。將最小寬度和最大寬度設置為相同大小會導致窗格被調整為指定的設置大小，但是也會“鎖定”窗格，因此無法調整大小。

若要調整窗格的大小，必須調用NormalizeSplitters方法，然后可以再次使用SetSize設置可以調整窗格的最小和最大寬度。這次不會調整窗格的大小，因為在設置寬度和高度之前已調用NormalizeSplitters。

Dim A As Pane

'Add a pane that is 50x50
Set A = DockingPaneManager.CreatePane(1, 50, 50, DockLeftOf)
A.Title = "Pane A"

'Only needs to be called if setting the size in Form_Load
DockingPaneManager.RecalcLayout

'setting the minimum and maximum track size to the same size
'will resize the pane to the specified width\height and lock
'the pane to the specified size.
'
'Below, the pane will be resized to 100x100 and can not be 
'resized
DockingPaneManager.FindPane(1).MinTrackSize.SetSize 100, 100
DockingPaneManager.FindPane(1).MaxTrackSize.SetSize 100, 100

'Only needs to be called if setting the size in Form_Load
DockingPaneManager.RecalcLayout

'NOTE:
'If the pane is docked to the Left\Right, then the "Width" will 
'be used, if docked to the Top\Bottom, then the "Height" 
'specified will be used. The only time both width and height 
'are used to size a pane is when the pane is floating.

'Remembers previous pane size settings so that the next call 
'to SetSize will not resize the pane
DockingPaneManager.NormalizeSplitters

'sets the minimum and maximum sizes the splitter can move
'Note, this will not resize the pane since NormalizeSplitters 
'was called before the call to SetSize.  Now SetSize will 
'only specify how large/small the user can resize the pane.

'Below, the pane can be resized between 0x0 and 500x500.
DockingPaneManager.FindPane(1).MinTrackSize.SetSize 0, 0
DockingPaneManager.FindPane(1).MaxTrackSize.SetSize 500, 500

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