Interaction with the Silverlight Browser: Creation and reading of files in the independent bucket of the Silverlight user

Overview

IsolatedstoragefileMember

An independent storage area that contains files and directories.
Isolatedstoragefile. getuserstoreforapplication

Obtain the application called from the VM domainProgramIndependent storage of the user range used.

IsolatedstoragefilestreamMember
Open files in independent storage.

StreamwriterMember
Implement a textwriter so that it writes characters to the stream in a specific encoding.

Note:

The default storage space for the user's independent storage is 1 MB, so there may be no space for large files. In this case, the user's independent storage can be expanded.

Silverlight browser Interaction: computing and expansion of independent storage space of Silverlight users

Effect

 

XAMLCode:

 

< Grid X: Name = "Layoutroot" Background = "White" >
< Stackpanel >
< Button X: Name = "Write"
Width = "150"
Height = "50"
Margin = "5"
Content = "Creating files"
Click = "Write_click" />
< Button X: Name = "Read"
Width = "150"
Height = "50"
Margin = "5"
Content = "Reading files"
Click = "Read_click" />
< Textblock X: Name = "Mytextblock" Text = "" Textwrapping = "Wrap" Margin = "5" />
</ Stackpanel >
</ Grid >

CS code:

/// <Summary>
/// Create File and write content
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private Void Write_click ( Object Sender, routedeventargs E)
{
// Isolatedstoragefile Member
// Isolatedstoragefile. getuserstoreforapplication obtains the independent storage of the user range used by the application called from the VM domain.
Using (VAR isofile = Isolatedstoragefile. getuserstoreforapplication ())
{
// Isolatedstoragefilestream Member
// Open files in independent storage.
Using (VAR stream = New Isolatedstoragefilestream ( " File.txt " , Filemode. Create, isofile ))
{
// Streamwriter Member
// Implement a textwriter so that it writes characters to the stream in a specific encoding.
Using (VAR writer = New Streamwriter (Stream ))
{
Writer. Write ( " Creation Time: " + Datetime. Now );
}
Stream. Close ();
MessageBox. Show ( " File Created! " );
}
}
}

/// <Summary>
/// Search for and read the file content
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private Void Read_click ( Object Sender, routedeventargs E)
{
Using (VAR isofile = Isolatedstoragefile. getuserstoreforapplication ())
{
Using (VAR stream = New Isolatedstoragefilestream ( " File.txt " , Filemode. Open, isofile ))
{
Using (VAR writer = New Streamreader (Stream ))
{
Mytextblock. Text = Writer. readtoend () + " Read time: " + Datetime. now;
}
Stream. Close ();
// Isofile. deletefile ("file1.txt ");
}

}

}

Success !!!

Author:Memories of lost youth
Source:Http://www.cnblogs.com/lukun/
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