文件对话框获取完整路径

Question

I have a OpenFileDialog to which I just need a Full Path such eg "C:\\Users\\Tshililo\\example.csv". How do I get the path after selecting a file?

I've tried using System.IO.Path.GetFileName(ofd.File.Name); but the output is "example.csv".

    OpenFileDialog ofd = new OpenFileDialog();
    using (var stream = ofd.File.OpenRead())
            {
      var thiname = System.IO.Path.GetFileName(ofd.File.Name);
                    //var oldPath = 
      System.IO.Path.GetDirectoryName(ofd.File.Name);

                }

My expected results are "C:\\Users\\Tshililo\\example.csv"

Answer 1

From the FileDialog.FileName docs :

The file name includes both the file path and the extension. If no files are selected, this method returns an empty string ("").

OpenFileDialog inherits from the FileDialog class.

Answer 2

Here's how I might use an OpenFileDialog.

• Calling ShowDialog() will show the dialog and halt your program execution while the user chooses the file. After they say OK or Cancel, it resumes.
• Inspect the result of ShowDialog() - if it's OK then we can proceed with manipulating the file the user picked. Most critically the .FileName property holds the full path to the file.
• If you enabled Multiselect, then the multiple filenames are found in the .FileNames property. .FileName contains the same string as .FileNames[0] , and the order of names in .FileNames is generally the reverse of the order the user chose them. If your user is expecting some sort of ordered processing, sort the filenames manually yourself. It's unwise to attach any special meaning to the order of the filenames returned

---

//consider declaring this in a USING if you don't have one persistent 
//openfiledialog that you re-use in your app
//i typically keep just one OFD at class level and hide/show it repeatedly
var ofd = new OpenFileDialog();

//set options of ofd before show
ofd.Whatever = whatever;

if(ofd.ShowDialog() == DialogResult.OK){

  //some examples:
  //we could get the full file path the user chose
  var path = ofd.FileName; 

  //or we could delete the file
  File.Delete(ofd.FileName); //2) delete the file or..

  //or we could read the contents of the text file they picked
  var content = File.ReadAllText(ofd.FileName); 

  //or open it as a stream
  var stream = File.OpenStream(ofd.FileName); 

  //or we could get the directory the file is in
  var dir = Path.GetDirectory(ofd.FileName);

  //or we could ponder how deep the directory tree is
  var depth = ofd.FileName.Split(Path.DirectorySeparatorChar.ToString()).Length;

}