c# - WPF New Window with content -

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i want create new window beside existing main windwoe scrollable textbox.

i'm pressing in main window on button "open new window" , should open new window scrollable textbox.

inside form2

in wpf can drag drop elements in main window cant new window. thought possible when create new window in mainwindow.xaml.cs

i able create new window trough:

private void btnconnect_click(object sender, routedeventargs   {     form form2 = new form();     //do intergreate textbox scrollbar in form2      form2.show();   }

and want textbox

but how can in c# or wpf?

thx

well... can create new window , load windows.content usercontrol wich createt in new xaml. example:

newxamlusercontrol ui = new newxamlusercontrol(); mainwindow newwindow = new mainwindow(); newwindow.content = ui; newwindow.show();

the xaml 

<usercontrol x:class="projekt"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"        x:name="newxamlusercontrol"               height="300" width="300">      <grid>          <textbox text = ..../>      </grid> </usercontrol>

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