Windows Phone 7 convenient notepad instance

This is a simple notepad. It uses local storage to record your content in real time and exitProgramThe content of the notepad is automatically saved. The following toolbar is used to zoom in or out the font.

The custom quicknotessettings class is used to save the content and font size of the notepad. It also encapsulates the loading and saving methods of the notepad.

 Using  System;
  Using  System. Io. isolatedstorage;
  Using  System. windows;

  Namespace  Quicknotes
{
  Public     Class  Quicknotessettings
{
 Public  Quicknotessettings ()
{
  This  . Text  =     ""  ;
  This  . Fontsize  =  (  Double  ) Application. Current. Resources [  "  Phonefontsizemediumlarge "  ];
}

  Public     String  Text {  Set  ;  Get  ;}
  Public     Double  Fontsize {  Set  ;  Get ;}
  //  Obtain the content of the local notepad through static methods  
    Public     Static  Quicknotessetaskload ()
{
Isolatedstorageset=isosettings  =  Isolatedstoragesettings. applicationsettings;
Quicknotessetasksettings;

  If  (  ! Isosettings. trygetvalue  <  Quicknotessettings  >  (  "  Settings  "  ,  Out  Settings ))
Settings  =     New  Quicknotessettings ();

  Return Settings;
}
  //  Save to local storage  
    Public     Void  Save ()
{
Isolatedstorageset=isosettings  =  Isolatedstoragesettings. applicationsettings;
Isosettings [  "  Settings  "  ] =     This  ;  //  The instance of this class is saved.  
  }
}
} 

XAML files

 <! --  Layoutroot contains the root grid where all other page content is placed  -->  
  <  Grid  X: Name = "Layoutroot"  Background  = "Transparent"  >  
  <  Grid. rowdefinitions  >  
  <  Rowdefinition  Height  = "Auto"  />  
  < Rowdefinition  Height  = "*"  />  
  </  Grid. rowdefinitions  >  

  <! --  Titlepanel contains the name of the application and page title  -->  
  <  Stackpanel  X: Name = "Titlepanel"  Grid. Row  = "0"  Margin  ="  >  
  <  Textblock  X: Name  = "Applicationtitle"  Text  = "Quick notes"  Style  ="  {Staticresource phonetextnormalstyle} "  />  
  </  Stackpanel  >  

  <  Grid  X: Name  = "Contentpanel"  Grid. Row  = "1"  Margin  = "12, 0, 12, 0"  >  
 <  Textbox  Name  = "Txtbox"  
Textwrapping  = "Wrap"  
Acceptsreturn  = "True"  
Verticalscrollbarvisibility  = "Auto"  
Textchanged  = "Ontextboxtextchanged"     /> 
  </  Grid  >  
  </  Grid  >  

  <  Phone: phoneapplicationpage. ApplicationBar  >  
  <  Shell: ApplicationBar  >  
 <! --  Zoom out  -->  
  <  Shell: applicationbariconbutton  Iconuri  = "/Images/littleletter.icon.png"   
Text  = "Smaller font"  
Click  = "Onappbarsmallerfontclick"     /> 
  <! --  Zoom in  -->  
  <  Shell: applicationbariconbutton  Iconuri  = "/Images/bigletter.icon.png"   
Text  = "Larger font"  
Click  = "Onappbarlargerfontclick"    />  
  </  Shell: ApplicationBar  >  
  </  Phone: phoneapplicationpage. ApplicationBar  > 

Corresponding CS Background File

 Using  System;
  Using  System. windows;
  Using  System. Windows. controls;
 Using  Microsoft. Phone. controls;

  Namespace  Quicknotes
{
  Public     Partial     Class  Mainpage: phoneapplicationpage
{
Quicknotessettings appsettings  =  (Application. Current  As  APP). deleettings;

  Public Mainpage ()
{
Initializecomponent ();

Txtbox. Text  =  Etettings. text;
Txtbox. fontsize  =  Appsettings. fontsize;
}
  //  Save the content of notepad to local storage.  
    Void  Ontextboxtextchanged (  Object  Sender, textchangedeventargs ARGs)
{
Appsettings. Text =  Txtbox. text;
}
  //  Shrink font  
    Void  Onappbarsmallerfontclick (  Object  Sender, eventargs ARGs)
{
Txtbox. fontsize  =  Math. Max (  12  , Txtbox. fontsize  -    1  );
Appsettings. fontsize  =  Txtbox. fontsize;
}
  //  Font Extension  
    Void  Onappbarlargerfontclick (  Object  Sender, eventargs ARGs)
{
Txtbox. fontsize  =  Math. Min ( 48  , Txtbox. fontsize  +     2  );
Appsettings. fontsize  =  Txtbox. fontsize;
}
}
} 

App. XAML. CS main program File Modification

 ......
  Public  Quicknotessettings appsettings {  Set  ;  Get  ;}
 Public  Phoneapplicationframe rootframe {  Get  ;  Private     Set  ;}

  Public  APP ()
{

Unhandledexception  + =  Application_unhandledexception;
Initializecomponent ();
Initializephoneapplication ();
}

  Private    Void  Application_launching (  Object  Sender, launchingeventargs E)
{
Appsettings  =  Quicknotessettings. Load ();
}

  Private     Void  Application_activated (  Object  Sender, activatedeventargs E)
{
Appsettings  = Quicknotessettings. Load ();
}

  Private     Void  Application_deactivated (  Object  Sender, deactivatedeventargs E)
{
Deleetask. save ();
}

  Private     Void  Application_closing (  Object  Sender, closingeventargs E)
{
Deleetask. save ();
}
......