actualwidth

How do I expose the ActualWidth property of one of the components of my user control to users? I have found plenty of examples of how to expose a normal property by creating a new dependency property and binding, but none on how to expose a read-only property like ActualWidth . Micah What you need is a ReadOnly dependency property. The first thing you need to do is to tap into the change notification of the ActualWidthProperty dependency on the control that you need to expose. You can do that by using the DependencyPropertyDescriptor like this: // Need to tap into change notification of the

This question already has an answer here: Pushing read-only GUI properties back into ViewModel 6 answers I want to bind a read-only property of a control to my view model so that the value is available in the view model. What is the best way of doing this? For example I'd like to bind ActualWidth to a property in my view model. The width value is generated by WPF using its layout logic so I can't generate this value in my view model and push it to the control property, as would normally be the case. Instead I need to have WPF generate the value and push it to the view model. I would just use

TextBlock tbl= new TextBlock(); tbl.text="Kishore"; double x=tbl.ActualHeight; double y=tbl.ActualWidth; If i execute the code from the loaded event in Metro - winRT will return 0 for both. How can I get the ActualWidth in the Loaded or SizeChanged event? Filip Skakun Call Measure() then Arrange() and then ActualWidth and ActualHeight will be updated. Can also do this via UpdateLayout(); testBlock.ActualWidth This could be useful when calculating multiple objects heights and widths. TextBlock tbl = new TextBlock(); tbl.Text = "Kishore"; tbl.Measure(new Size(0, 0)); double x = tbl.ActualHeight;

I am currently working with Panel s in WPF, and I noticed that as regards the Width and Height properties, there are also two other properties called ActualWidth and ActualHeight . ActualWidth Gets the rendered width of this element. This is a dependency property. (Inherited from FrameworkElement.) Width Gets or sets the width of the element. This is a dependency property. (Inherited from FrameworkElement.) Reference: MSDN Can anyone point out the differences between the two and when to use either one ? Muad'Dib Width / Height is the requested or layout size. If you set to Auto, then the value

In a Silverlight 3.0 application I'm attempting to create a rectangle in a canvas and have it stretch the whole width of the canvas. I have attempted to do this by binding to the ActualWidth property of a parent container (seem sample below), however while I don't see any binding errors the value is not being bound. The rectangle is not visible as its width is zero. In addition tried binding to the ActualWidth of the canvas that contains my rectangle but this made no difference. I did find this bug logged on Microsoft Connect but there were no workarounds listed. Has anyone been able to solve

I have a Grid inside a Canvas defined like this: <Canvas x:Name="outerCanvas"> <Grid Grid.Row="1" Name="cGrid" ShowGridLines="True" Width="{Binding Path=ActualWidth, RelativeSource={RelativeSource AncestorType={x:Type Canvas}}}" Height="{Binding Path=ActualHeight, RelativeSource={RelativeSource AncestorType={x:Type Canvas}}}"> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <Rectangle Name="rectangle1" Stroke="Black" Fill="AntiqueWhite" /> <Rectangle