WPF ： The ItemsControl border has extra lines appearing.
I am using ItemsControl with WrapPanel as the panel and have set a border for the ItemsControl. How can I make the border apply only to the content area? Right now, there is extra space beyond the content area.
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal" IsItemsHost="True" />
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal" IsItemsHost="True" />
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
