如何从OpenFileDialog和FolderBrowserDialog中获取文件路径
本文关键字:获取 文件 路径 FolderBrowserDialog OpenFileDialog | 更新日期: 2023-09-27 18:10:36
嘿,我开始学习c#几天前,我试图做一个程序,复制和粘贴文件(并替换如果需要)到一个选定的目录,但我不知道如何从openfiledialog和folderbrowserdialog
获得目录和文件路径我做错了什么?
代码如下:
namespace filereplacer
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void direc_Click(object sender, EventArgs e)
{
string folderPath = "";
FolderBrowserDialog directchoosedlg = new FolderBrowserDialog();
if (directchoosedlg.ShowDialog() == DialogResult.OK)
{
folderPath = directchoosedlg.SelectedPath;
}
}
private void choof_Click(object sender, EventArgs e)
{
OpenFileDialog choofdlog = new OpenFileDialog();
choofdlog.Filter = "All Files (*.*)|*.*";
choofdlog.FilterIndex = 1;
choofdlog.Multiselect = true;
choofdlog.ShowDialog();
}
private void replacebtn_Click(object sender, EventArgs e)
{
// This is where i'm having trouble
}
public static void ReplaceFile(string FileToMoveAndDelete, string FileToReplace, string BackupOfFileToReplace)
{
File.Replace(FileToMoveAndDelete, FileToReplace, BackupOfFileToReplace, false);
}
}
为OpenFileDialog :
OpenFileDialog choofdlog = new OpenFileDialog();
choofdlog.Filter = "All Files (*.*)|*.*";
choofdlog.FilterIndex = 1;
choofdlog.Multiselect = true;
if (choofdlog.ShowDialog() == DialogResult.OK)
{
string sFileName = choofdlog.FileName;
string[] arrAllFiles = choofdlog.FileNames; //used when Multiselect = true
}
为FolderBrowserDialog :
FolderBrowserDialog fbd = new FolderBrowserDialog();
fbd.Description = "Custom Description";
if (fbd.ShowDialog() == DialogResult.OK)
{
string sSelectedPath = fbd.SelectedPath;
}
要访问selected folder
和selected file name
,可以在类级别声明这两个string 。
namespace filereplacer
{
public partial class Form1 : Form
{
string sSelectedFile;
string sSelectedFolder;
public Form1()
{
InitializeComponent();
}
private void direc_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
//fbd.Description = "Custom Description"; //not mandatory
if (fbd.ShowDialog() == DialogResult.OK)
sSelectedFolder = fbd.SelectedPath;
else
sSelectedFolder = string.Empty;
}
private void choof_Click(object sender, EventArgs e)
{
OpenFileDialog choofdlog = new OpenFileDialog();
choofdlog.Filter = "All Files (*.*)|*.*";
choofdlog.FilterIndex = 1;
choofdlog.Multiselect = true;
if (choofdlog.ShowDialog() == DialogResult.OK)
sSelectedFile = choofdlog.FileName;
else
sSelectedFile = string.Empty;
}
private void replacebtn_Click(object sender, EventArgs e)
{
if(sSelectedFolder != string.Empty && sSelectedFile != string.Empty)
{
//use selected folder path and file path
}
}
....
}
注意:
由于您保留了choofdlog.Multiselect=true;
,这意味着在OpenFileDialog()
中您可以选择多个文件(通过按ctrl
键并单击鼠标左键进行选择)。
在这种情况下,你可以得到所有选定的文件在string[]
:
在类水平:
string[] arrAllFiles;
找到这一行(当Multiselect=true
这一行只给出第一个文件时):
sSelectedFile = choofdlog.FileName;
获取所有文件:
arrAllFiles = choofdlog.FileNames; //this line gives array of all selected files
使用System.IO
中的Path
类。它包含了操作文件路径的有用调用,包括GetDirectoryName
,它可以做你想做的事情,返回文件路径的目录部分。
用法简单。
string directoryPath = System.IO.Path.GetDirectoryName(choofdlog.FileName);
您可以将Path存储到字符串变量中,如
string s = choofdlog.FileName;
要获得所选文件的完整文件路径,则需要对一个文件使用FileName属性,或对多个文件使用FileName属性。
var file = choofdlog.FileName; // for one file
或多个文件
var files = choofdlog.FileNames; // for multiple files.
要获得文件的目录,可以使用Path。GetDirectoryName
下面是Jon Keet对从路径
创建这个类作为Extension:
public static class Extensiones
{
public static string FolderName(this OpenFileDialog ofd)
{
string resp = "";
resp = ofd.FileName.Substring(0, 3);
var final = ofd.FileName.Substring(3);
var info = final.Split('''');
for (int i = 0; i < info.Length - 1; i++)
{
resp += info[i] + "''";
}
return resp;
}
}
那么,你可以这样使用:
//ofdSource is an OpenFileDialog
if (ofdSource.ShowDialog(this) == DialogResult.OK)
{
MessageBox.Show(ofdSource.FolderName());
}
在ShowDialog()
返回后,您的choofdlog
保存包含文件路径的FileName
和FileNames
(用于多选择)。
一个基本的快速修复。
如果你只使用OpenFileDialog
,你可以捕获FileName
, SafeFileName
,然后减去得到文件夹路径:
exampleFileName = ofd.SafeFileName;
exampleFileNameFull = ofd.FileName;
exampleFileNameFolder = ofd.FileNameFull.Replace(ofd.FileName, "");
我很抱歉,如果我晚了回复这里,但我只是认为我应该扔在一个更简单的解决方案的OpenDialog。
OpenDialog ofd = new OpenDialog();
var fullPathIncludingFileName = ofd.Filename; //returns the full path including the filename
var fullPathExcludingFileName = ofd.Filename.Replace(ofd.SafeFileName, "");//will remove the filename from the full path
我还没有使用FolderBrowserDialog之前,所以我会相信我的同事编码的采取这一点。
String fn = openFileDialog1.SafeFileName;
String path = openFileDialog1.FileName.ToString().Replace(fn, "");