How to open a child Window like a splash screen before MainWindow in WPF? -

How to open a child Window like a splash screen before MainWindow in WPF? -

i have 2 xaml. 1 mainwindow , other newwindow. want show newwindow 5 seconds, when programme run. , after 5 seconds, want show mainwindow.

how alter xaml in wpf?

here mainwindow.

<window x:class="wpfapplication2.mainwindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" title="mainwindow" height="350" width="525"> <grid> </grid>

public partial class mainwindow : window { public mainwindow() { initializecomponent(); } }

here newwindow.

<window x:class="wpfapplication2.newwindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" title="newwindow" height="300" width="300"> <grid> </grid>

public partial class newwindow : window { public newwindow() { initializecomponent(); } }

there plenty ways this. people suggested suggest not if you're trying create splash screen, there improve ways that. but.. here asked for:

using system.componentmodel; //remember add together public partial class mainwindow : window { private backgroundworker waitingworker = new backgroundworker(); private newwindow mynewwindow = new newwindow(); public mainwindow() { initializecomponent(); waitingworker.dowork += waitingworker_dowork; waitingworker.runworkercompleted += waitingworker_runworkercompleted; waitingworker.runworkerasync(); } private void waitingworker_runworkercompleted(object sender, runworkercompletedeventargs e) { mynewwindow.show(); this.close(); } private void waitingworker_dowork(object sender, doworkeventargs e) { thread.sleep(5000); } }

it's simple background worker waits 5 seconds, opens newwindow , close mainwindow. yes, can without background worker too, thread.sleep(5000); totally freeze gui , create little app unresponsive, need thread wait while main thread can maintain gui alive. suggest study at least how background worker works.

here official msdn documentation, google friend , can find tons of tutorial , explanation it

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