windows phone開發 檔案操作



下面將分別介紹以上兩種方式如何來實現的檔案的訪問的：

首先將乙個頁面進行如下布局

private void button1_click(object sender, routedeventargs e)

if (!storagefile.directoryexists(path))
storagefile.createdirectory(path);
if (!storagefile.fileexists(system.io.path.combine(path, name)))
filestream = storagefile.createfile(system.io.path.combine(path, name));
else
var writer = new streamwriter(filestream);
writer.write(textbox3.text);
writer.close();
filestream.close();
textbox3.text = "";
textbox1.text = "";
textbox2.text = "";
}

private async void button1_click(object sender, routedeventargs e)

var datafolder = await localfolder.createfolderasync(path, creationcollisionoption.openifexists);
var datafile = await datafolder.createfileasync(name, creationcollisionoption.openifexists);
if (textbox3.text.trim() != "")
}textbox1.text = "";
textbox2.text = "";
textbox3.text = "";
}

private void button2_click(object sender, routedeventargs e)

if (storagefile.fileexists(system.io.path.combine(path, name)))
}

private async void button2_click(object sender, routedeventargs e)

var datafolder = await localfolder.getfolderasync(path);
var datafile = await datafolder.getfileasync(name);
using (var s = await datafile.openstreamforwriteasync())
textbox3.text = "";
}

private void button3_click(object sender, routedeventargs e)

if(storagefile.fileexists(system.io.path.combine(path,name)))
}

private async void button3_click(object sender, routedeventargs e)

var datafolder=await localfolder.getfolderasync(path);
var datafile = await datafolder.openstreamforreadasync(name);
using (var s=new streamreader(datafile))
}

private void button4_click(object sender, routedeventargs e)

if(storagefile.fileexists(system.io.path.combine(path,name)))
textbox3.text = "";
textbox2.text = "";
}

private async void button4_click(object sender, routedeventargs e)

var datafolder = await localfolder.getfolderasync(path);
var datafile = await datafolder.getfileasync(name);
await datafile.deleteasync();
await datafolder.deleteasync();
textbox3.text = "";
textbox2.text = "";
}

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