Child Window in WPF

Let us assume there is a requirement, On click event of button, a new child window should open. While child window is open, the parent window should be inactive.

So start with

Step 1:   Create a WPF application. And drag and drop a Button on the MainPage.
<Grid>

<Button x:Name="ButtonNewWindow"  Hright="100" Width="Auto" Content="Open new Window" />

</Grid>

Step 2:   Right click on the WPF project and new item and select a WPF Window from WPF tab. Rename window to ChildWindow.xaml

Step 3:   Now on the click event of button child window will get open.

ButtonNewWindow.Click += new RoutedEventHandler (delegate(object sender, RoutedEventArgs e)

{

ChildWindow chlWindow = new ChildWindow();

MessageBox.Show(chlWindow.GetMessage());

chlWindow.ShowDialog();

}

On the button click event. An instance of Child window is being created. Then ShowDialog() method is being called to open the child window .

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