#1,051 – How the GridSplitter Behaves when Cells Use Auto Sizing

If one or both columns on either size of a GridSplitter (in its own column) have a width set to Auto, the behavior is as follows (“proportional” refers to star sizing):

  • Both columns set to Auto: Left column changes size and is switched to Absolute sizing
  • Left column Auto, right column proportional: Both columns change size, left switches to Absolute, right remains at original proportion (e.g. “1*”)
  • Right column Auto, left column proportional: Both columns change size, right switches to Absolute, left remains at original proportion

In the example below, columns 0 and 2 surround a GridSplitter in column 1.  Columns 0 and 2 are set to Auto size (as is the column with the GridSplitter) and column 3 is set to proportional.

Initially, we see that both columns 0 and 2 are auto-sized.
1051-001

If we slide the GridSplitter to the right, column 0 changes size and switches to Absolute sizing.  Column 2 remains as Auto.

1051-002

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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