The notes in this article say that the unit of measurement on the parse method is Pixel.

This is not entirely correct. The unit of measurement is the unit of measurement given.
For example:

Unit.Parse("50%") will result in a percentage unit of measurement, not Pixel.
Unit.Parse("50") will however indeed result in a unit measurement of Pixel.

So only in the event that no unit of measurement is provided in the input, the DEFAULT is Pixel.

Document Details

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• ID: 2a3eaf9f-e80a-cae1-aab4-63fc4beffd96
• Version Independent ID: 58450b5d-a17c-5644-1487-4ffea0ee6ac9
• Content: Unit.Parse Method (System.Web.UI.WebControls)
• Content Source: xml/System.Web.UI.WebControls/Unit.xml
• Product: dotnet-api
• GitHub Login: @scottaddie
• Microsoft Alias: dotnetcontent