嗨，我正在尝试更新在删除文件夹后绑定的列表框，但它似乎没有更新，除非我离开页面并返回任何人都可以帮助我在下面的类项目中获得我的代码，感谢您的帮助。
public partial class Page3 : PhoneApplicationPage
{
string[] fileNames;
string[] folderNames;
private string selectedProject = "";
private List<Project> projectList = new List<Project>();
public Page3()
{
InitializeComponent();
showProjects();
}
public void showProjects()
{
projectList.Clear();
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication();
folderNames = isf.GetDirectoryNames("/*.*");
foreach (var name in folderNames)
{
fileNames = isf.GetFileNames(name + "/*.*");
int frameCount = 0;
foreach (var nameCount in fileNames)
{
frameCount++;
}
projectList.Add(new Project(name,frameCount));
}
listBoxProjects.ItemsSource = projectList;
}
private void listBoxProjects_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
}
public void DeleteDirectory(string directoryName)
{
try
{
IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication();
if (!string.IsNullOrEmpty(directoryName) && myIsolatedStorage.DirectoryExists(directoryName))
{
myIsolatedStorage.DeleteDirectory(directoryName);
}
}
catch (Exception ex)
{
// handle the exception
}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
IsolatedStorageFile myIso;
string folder = textBoxDelete.Text;
using (myIso = IsolatedStorageFile.GetUserStoreForApplication())
{
String[] fileNames = myIso.GetFileNames(folder + "/*.*");
foreach (var name in fileNames)
{
MessageBox.Show(name);
myIso.DeleteFile(folder + "/" + name);
}
myIso.DeleteDirectory(folder);
showProjects();
}
}
}
public class Project
{
public string ProjectName { get; set; }
public int FileCount { get; set; }
public Project(string pName, int fileCount)
{
this.ProjectName = pName;
this.FileCount = fileCount;
}
}
}