從文本框傳遞文件名到WebRequest.Create在C＃

Question

我正在一些小應用程序工作，並需要上傳文本文件到FTP。

我使用此代碼上傳文件：

using System; 
using System; 
using System.IO; 
using System.Net; 
using System.Text; 

/// <summary> 
/// Simple static class for uploading a file to an FTP server. 
/// </summary> 
public static class fileUpload 
{ 
    public static string uploadFile(string file) 
    { 
     // Get the object used to communicate with the server. 
     FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.mywebserver.com/myfile.txt"); 
     request.Method = WebRequestMethods.Ftp.UploadFile; 

     // This example assumes the FTP site uses anonymous logon. 
     request.Credentials = new NetworkCredential("username", "password"); 

     // Copy the entire contents of the file to the request stream. 
     StreamReader sourceStream = new StreamReader(file); 
     byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd()); 
     sourceStream.Close(); 
     request.ContentLength = fileContents.Length; 

     // Upload the file stream to the server. 
     Stream requestStream = request.GetRequestStream(); 
     requestStream.Write(fileContents, 0, fileContents.Length); 
     requestStream.Close(); 

     // Get the response from the FTP server. 
     FtpWebResponse response = (FtpWebResponse)request.GetResponse(); 

     // Close the connection = Happy a FTP server. 
     response.Close(); 

     // Return the status of the upload. 
     return response.StatusDescription; 

    } 
} 

要上傳文件我用這個：

fileUpload.uploadFile(uploadedfile.txt); 

問題是當上傳的文件總是被命名爲我們myfile.txt的，我需要該文件的名稱與textBox1中的文本完全相同。

因此，例如我在硬盤上保存文件時使用這個("C:/savehere/"+textBox1.text +".txt"); 它工作正常。

但是當我做同樣的位置：

FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.mywebserver.com/"+ textBox1.text + ".txt"); 

它不會工作。

我該如何在這個例子中做同樣的事情？

謝謝！

Answer 1

如果路徑是ftp://www.mywebserver.com/filename.txt

嘗試改變

FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.mywebserver.com/%2f"+ textBox1.text + ".txt"); 

但是，它可能是最好創建一個目錄的文件保存的

ftp://www.mywebserver.com/%2ftemp/filename.txt

更新 -

public static class fileUpload 
{ 
    TextBox textBox1 = new TextBox(); 

    public static void getText(TextBox tb) { 
     return tb.text; 
    } 

    public static string uploadFile(string file) 
    { 
     var aText = getText(textBox1); 

     // Get the object used to communicate with the server. 
     FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.mywebserver.com/%2f"+ aText + ".txt"); 

     // .... 

Answer 2

當我這樣做，它與一個錯誤回來：錯誤1的對象引用是所必需的非靜態字段，方法或屬性「WindowsFormsApplication1.Form1.textBox7

我明白，這是由於靜，但我不知道如何將其更改爲正確類型:(

Answer 3

那麼呢？

string baseUrl = "ftp://www.mywebserver.com/"; 
string FileName = textBox1.Text; 
string extension = ".txt"; 

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri(new Uri(baseUrl), string.Format("{0}{1}", FileName, extension))); 

這將導致：

ftp://www.mywebserver.com/{textboxContent}.txt