actualwidth – Tarik Billa

Why are ActualWidth and ActualHeight 0.0 in this case?

May 19, 2023 by Tarik

ActualHeight and ActualWidth are not set until the control is measured and arranged. Usually there is nothing in InitializeComponent() that causes a measure, so when it returns these will still be zero. You can force these to be computed earlier by simply calling the window’s Measure() and Arrange() methods manually after the window’s InitializeComponent() returns. … Read more

What is the difference between Width and ActualWidth in WPF?

May 2, 2023 by Tarik

Width/Height is the requested or layout size. If you set to Auto, then the value is double.NaN when you access the property in code behind. ActualWidth/ActualHeight and RenderSize.Width/RenderSize.Height both return the element’s rendered size, as RenderSize is of type Size. If you want/need the actual size of the item, then use any of these attributes.