Is there a way to get the size at runtime ?

I need to display the usercontrol in a dialog and need to size the window accordingly

Since there are multiple usercontrols, looking for make it generic if possible !!

• c#
• .net
• wpf
• c#-4.0

You can use SizeToContent

<Window x:Class="WindowSample.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            Title="WPF Window"
            SizeToContent="WidthAndHeight" >

This will make your window automatically resize itself to fit the preferred size of your window contents.

Sounds like you might need to rethink the problem? If you need the design time height and width, then just set the Width and Height of the control you are working with explicitly. This will 'default' the control to a specific size. Normally, you'd probably want the control's width and height to be set to Auto and have the container or layout manager decide what the size should be. So if you put the control in a Grid, assign it to a quadrant and set the size there.

Finally, if you're asking because you are designing with Blend and resizing the user control sets the design time, you can resize the control explicitly by selecting the inside corner notch instead of the outside corner notch with the bigger handle. The inside notch will result in Height and Width being set explicitly.