Set the WPF scroll bar width

Method 1: rewrite the attributes of the systemparameters class.

The width parameter of the WPF scroll bar is stored in the verticalscrollbarwidthkey and horizontalscrollbarheightkey attributes of systemparameters. It is easy to define a dynamic resource to change this parameter within its range.

<Scrollviewer horizontalscrollbarvisibility = "Auto"

Xmlns: SYS = "CLR-namespace: system; Assembly = mscorlib">

<Scrollviewer. Resources>

<SYS: Double X: Key = "{X: static systemparameters. verticalscrollbarwidthkey}"> 100 </sys: Double>

<SYS: Double X: Key = "{X: static systemparameters. horizontalscrollbarheightkey}"> 100 </sys: Double>

</Scrollviewer. Resources>

<Button width = "400" Height = "400"> AAA </button>

</Scrollviewer>

 

 

 

Method 2: Define a style

Define a style for the scrollbar class in scrollviewer, so that the corresponding attributes of the scrollbar in scrollviewer will be set

<Scrollviewer horizontalscrollbarvisibility = "Auto">

<Scrollviewer. Resources>

<Style targettype = "{X: Type scrollbar}">

<Style. triggers>

<Trigger property = "orientation" value = "horizontal">

<Setter property = "width" value = "Auto"/>

<Setter property = "height" value = "100"/>

</Trigger>

<Trigger property = "orientation" value = "vertical">

<Setter property = "width" value = "100"/>

<Setter property = "height" value = "Auto"/>

</Trigger>

</Style. triggers>

</Style>

</Scrollviewer. Resources>

<Button width = "400" Height = "400"> AAA </button>

</Scrollviewer>

The results are the same after the two operations: