Question

我需要使用带日期选择器的文本框来选择日期。根据所选日期，当我点击＆＃34;去＆＃34;按钮，应在FTP文件夹中为文本框中给出的日期，月份和年份创建子文件夹。

这应该使用Windows应用程序完成。你能告诉我怎么做吗？

以下是使用日期选择器选择日期并在消息框中显示消息的代码。但是，我不需要显示消息，而是需要在FTP文件夹中为文本框中存在的日期月份和年份创建子文件夹。

public Form1()
{
    InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
    dateTimePicker1.Format = DateTimePickerFormat.Short;
    dateTimePicker1.Value = DateTime.Today;
}

private void button1_Click(object sender, EventArgs e)
{
    DateTime iDate;
    iDate = dateTimePicker1.Value;
    MessageBox.Show("Selected date is " + iDate);
}

并在FTP服务器中创建我使用过的代码

using System.Net;

private void CreateDirectoryFTP(string directory)
{
    string path = @"/" + directory;
    WebRequest request = WebRequest.Create(FtpHost + path);
    request.Method = WebRequestMethods.Ftp.MakeDirectory;
    request.Credentials = new NetworkCredential(FtpUser, FtpPass);
    try
    {
       request.GetResponse();
    }
    catch (Exception e)
    {
        //directory exists
    }
}

这是在button1_click事件下方使用的，当我在button1_click事件中以这种方式CreateDirectoryFTP(string directory)调用此方法时，它会发出错误

无效的表达式术语字符串

但单击按钮时应创建文件夹。你能告诉我我该怎么办？

Answer 1

在方法声明中，您指示参数dictionary的类型为string。如果您想在button1_click事件中调用您的方法，则只需传递任何string但不再使用术语string。

示例：

private void button1_click(object sender, EventArgs e)
{
    string directory = @"\Path\You\Want\To\Pass";
    DateTime iDate;
    iDate = dateTimePicker1.Value;
    CreateDirectoryFTP(directory, iDate); // You directly pass the variable to the method
}

如果您不想使用变量传递路径，也可以直接传递：

private void button1_click(object sender, EventArgs e)
{
    DateTime iDate;
    iDate = dateTimePicker1.Value;
    CreateDirectoryFTP(@"\Path\You\Want\To\Pass", iDate);
}

要创建子文件夹，请将日期传递给方法CreateDirectoryFTP：

private void CreateDirectoryFTP(string directory, DateTime date)
{
    string path = @"/" + directory;
    WebRequest request = WebRequest.Create(FtpHost + path);
    request.Method = WebRequestMethods.Ftp.MakeDirectory;
    request.Credentials = new NetworkCredential(FtpUser, FtpPass);
    try
    {
        request.GetResponse();
    }
    catch (Exception e)
    {
        //directory exists
    }

    string pathToDay = path + "/" + date.Day.ToString();
    // And now you can create the subfolder like you did it for the main folder

    string pathToMonth = path + "/" + date.Month.ToString();
    // Also with the month and the year you can do it like you did it for the main folder
}

在C＃Windows应用程序中的FTP文件夹中创建子文件夹

1 个答案: