wpf - How to restore a window while it is minimized in system tray? -

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i have wpf form has 1 main window. when click button in main window show child window. tried restore child window couldn't. how restore while minimized in system tray?

something should work

 if (this.mainwindow.windowstate == windowstate.minimized)  {      this.mainwindow.windowstate = windowstate.normal;  }   //bring window front of windows  this.mainwindow.activate();

this.mainwindow should reference window want maximize or bring normal state.

regards,


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