如何在openFileDialog中保存最后一个文件夹?

时间:2013-04-18 08:46:04

标签: c# openfiledialog

如何让我的应用程序存储在openFileDialog中打开的最后一条路径以及新的打开后恢复它?

OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
    acc_path = openFileDialog1.FileName;
    Settings.Default.acc_path = acc_path;

    foreach (string s in File.ReadAllLines(openFileDialog1.FileName))
    {
        accs.Enqueue(s);
    }
    label2.Text = accs.Count.ToString();
}

8 个答案:

答案 0 :(得分:9)

更改设置后,您必须致电

Settings.Default.Save();

然后在打开OpenFileDialog之前设置

openFileDialog1.InitialDirectory = Settings.Default.acc_path;

答案 1 :(得分:9)

这是最简单的方法:FileDialog.RestoreDirectory

答案 2 :(得分:4)

我认为使用SetCurrentDirectory来操作操作系统的当前目录就足够了。因此,在下一个对话框打开时,它将选择该路径。

或者只是将路径保存到应用程序的某个变量中并使用
FileDialog.InitialDirectory财产。

答案 3 :(得分:2)

以下是您在应用程序生命周期内确保OpenFileDialog将在用户上次选择的目录中打开所需的全部内容。

OpenFileDialog OpenFile = new OpenFileDialog();
OpenFile.RestoreDirectory = false;

答案 4 :(得分:1)

您可以使用InitialDirectory属性:http://msdn.microsoft.com/fr-fr/library/system.windows.forms.filedialog.initialdirectory.aspx

OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
openFileDialog1.InitialDirectory = previousPath;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
    previousPath = Path.GetDirectoryName(openFileDialog1.FileName);
    acc_path = openFileDialog1.FileName;
    Settings.Default.acc_path = acc_path;

    foreach (string s in File.ReadAllLines(openFileDialog1.FileName))
    {
        accs.Enqueue(s);
    }
    label2.Text = accs.Count.ToString();
}

答案 5 :(得分:1)

我发现你所要做的就是不设置初始目录,对话框会记住你上次保存/打开的位置。即使在应用程序关闭并重新打开后,这也会记住。在初始目录中注释掉这个代码。上面的许多建议也可以使用,但如果您不想寻找其他功能,那么您就必须这样做。

    private void button1_Click(object sender, EventArgs e)
    {
        Stream myStream = null;
        OpenFileDialog openFileDialog1 = new OpenFileDialog();

        //openFileDialog1.InitialDirectory = "c:\\";
        openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
        openFileDialog1.FilterIndex = 2;

        if (openFileDialog1.ShowDialog() == DialogResult.OK)
        {
            try
            {
                if ((myStream = openFileDialog1.OpenFile()) != null)
                {
                    using (myStream)
                    {
                        // Insert code to read the stream here.
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
            }
        }
    }

答案 6 :(得分:0)

如果您使用

Dim myFileDlog As New OpenFileDialog()

然后你可以用它来恢复最后一个目录

myFileDlog.RestoreDirectory = True

这不是

myFileDlog.RestoreDirectory = False

(在VB.NET中)

答案 7 :(得分:0)

我知道这是一个旧线程,但我无法找到我喜欢的同一个问题的解决方案,所以我开发了自己的。我在WPF中做到了这一点,但它在Winforms中的工作方式几乎相同。

基本上,我使用app.config文件存储我的程序的最后一条路径。

当我的程序启动时,我读取配置文件并保存到全局变量。下面是我程序启动时调用的类和函数。

public static class Statics
{
    public static string CurrentBrowsePath { get; set; }

    public static void initialization()
    {
        ConfigurationManager.RefreshSection("appSettings");
        Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

        CurrentBrowsePath = ConfigurationManager.AppSettings["lastfolder"];
    }
}

接下来,我有一个按钮,用于打开文件浏览对话框,并将InitialDirectory属性设置为存储在配置文件中的属性。希望这有助于任何一个谷歌搜索。

    private void browse_Click(object sender, RoutedEventArgs e)
    {
        OpenFileDialog open_files_dialog = new OpenFileDialog();
        open_files_dialog.Multiselect = true;
        open_files_dialog.Filter = "Image files|*.jpg;*.jpeg;*.png";
        open_files_dialog.InitialDirectory = Statics.CurrentBrowsePath;

        try
        {
            bool? dialog_result = open_files_dialog.ShowDialog();

            if (dialog_result.HasValue && dialog_result.Value)
            {
                string[] Selected_Files = open_files_dialog.FileNames;

                if (Selected_Files.Length > 0)
                {
                    ConfigWriter.Update("lastfolder", System.IO.Path.GetDirectoryName(Selected_Files[0]));
                }

                // Place code here to do what you want to do with the selected files.
            }
        }
        catch (Exception Ex)
        {
            MessageBox.Show("File Browse Error: " + Environment.NewLine + Convert.ToString(Ex));
        }
    }