After Windows Phone panaroma hides the control, selectionchanged will flash and disappear.

Use the panaroma control,

<Controls: panoramaitem foreground = "  {Staticresource maintitle}  " Header = "  My account  " > <Grid Height = "  650  " Margin = "  12, 0, 0, 0  " Verticalalignment = "  Top " > <Grid X: Name = "  Userhomelogined  " Visibility = "  Collapsed  " > <Grid. rowdefinitions> <rowdefinition Height = "  150  " > </Rowdefinition> <rowdefinition Height = "  *  " > </Rowdefinition> </grid. rowdefinitions> <grid. Row = "  0  " > <Stackpanel orientation = "  Horizontal  " > <Image stretch = "  None  " Source = "  /Image/userhome/uploadphoto.png  " > </Image> <textblock margin = "  0, 12, 0, 0  " TEXT = "  A user  " > </Textblock> </stackpanel> </GRID> <ListBox X: Name = "  Userhomemenu  " Grid. Row = "  1  " > <Listboxitem> <stackpanel Height = "  40  " Orientation = "  Horizontal  " > <Image Source = "  /Image/userhome/collection.png  " > </Image> <textblock X: Name = "  Accountremain  " Tap = "  Accountremain_tap  " Margin = "  12, 0, 0, 0  " Foreground = "  {Staticresource hubbackground}  " TEXT = "  My balance  " > </Textblock> </stackpanel> </listboxitem> </ListBox> </GRID> <stackpanel X: Name = "  Userhomeunlogin  " Orientation = "  Vertical  " > <Textblock text = "  Username/email/member account  " > </Textblock> <textbox borderthickness = " 1  " Borderbrush = "  Gray  " Width = "  400  " Style = "  {Staticresource textboxstyle1}  " > </Textbox> <textblock text = "  Password  " > </Textblock> <textbox borderthickness = "  1  " Borderbrush = "  Gray  " Width = "  400  " Style = "  {Staticresource textboxstyle1}  " > </Textbox> <button X: Name = " Login  " Click = "  Login_click  " Width = "  200  " Height = "  100  " Background = "  {Staticresource hubbackground}  " Content = "  Login " Style = "  {Staticresource buttonstyle1}  " > </Button>  "  {Staticresource hubbackground}  " Content = "  If you do not have an account, click here to register  " Name = "  Register  " /> </Stackpanel> </GRID> </controls: panoramaitem>

After the user clicks log onUserhomeunloginHide, SetUserhomelogined:

 

 
Userhomeunlogin. Visibility = system. Windows. Visibility. collapsed;
Userhomelogined. Visibility = system. Windows. Visibility. visible;
 

After dragging panaroma,Userhomeunlogin will flash and disappear,

Solution

 
Userhomeunlogin .. children. Clear (); userhomelogined. Visibility= System. Windows. Visibility. visible;