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Editorial Team
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Asked: 2026-05-22T21:04:57+00:00

Where GridView ‘s column header splitters are defined? I tried to use Snoop to

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Where GridView‘s column header splitters are defined? I tried to use Snoop to find them, but I just can’t localize template I need.GridViewColumnHeader does not define any splitters. The problem is that default ones are to thin and sometimes It is really hard to select them. Did anyone ever change them?

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1 Answer

  1. Editorial Team

    I had a poke around and found a thumb control is used for the splitting behaviour. Although it looks slim the Thumb is 18px wide.

    You can change it by altering the template part named PART_HeaderGripper which is defined in the template for a GridViewColumnHeader. A simple way to do this in blend is add a GridViewColumnHeader to your window right click and and edit a copy of the template. Then you can apply your edited template by setting:

    <GridView ColumnHeaderContainerStyle="{StaticResource GridViewColumnHeaderStyle}">.

    The thumbs properties are set in a style named GridViewColumnHeaderGripper.

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