#464 – ShowsPreview Property Delays Row/Column Size Change Using a GridSplitter

By default, when you use a GridSplitter, the rows or columns that are being changed as you drag the GridSplitter are changed dynamically, as you drag the GridSplitter.  There are times, however, when you only want to draw the newly sized rows or columns after you’re done dragging the GridSplitter.  You can do this by setting the ShowsPreview property to true.

With ShowsPreview set to true, you’ll only see a ghosted image of the horizontal or vertical GridSplitter as you drag it.  Then, when you release the left mouse button, the rows or columns will be rendered at the new size.