嘿,我几天前就开始学习C#了,我试图创建一个程序来复制和粘贴文件(并在需要时更换)到一个选定的目录但是我不知道如何获得openfiledialog和folderbrowserdialog
中的目录和文件路径我做错了什么?
以下是代码:
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);
}
}
答案 0 :(得分:40)
适用于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
}
适用于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
,您可以在班级中声明两个字符串。
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
}
}
....
}
注意强>:
正如您保留choofdlog.Multiselect=true;
,这意味着在OpenFileDialog()
中您可以选择多个文件(按ctrl
键并单击鼠标左键进行选择)。
在这种情况下,您可以在string[]
中获取所有选定的文件:
在班级:
string[] arrAllFiles;
找到此行(当Multiselect=true
此行仅提供第一个文件时):
sSelectedFile = choofdlog.FileName;
要获取所有文件:
arrAllFiles = choofdlog.FileNames; //this line gives array of all selected files
答案 1 :(得分:3)
使用Path
中的System.IO
课程。它包含用于操作文件路径的有用调用,包括执行所需操作的GetDirectoryName
,返回文件路径的目录部分。
用法很简单。
string directoryPath = System.IO.Path.GetDirectoryName(choofdlog.FileName);
答案 2 :(得分:3)
您可以将Path存储到字符串变量中,如
string s = choofdlog.FileName;
答案 3 :(得分:2)
要获取所选文件的完整文件路径,您需要对一个文件使用FileName属性,对多个文件使用FileNames属性。
var file = choofdlog.FileName; // for one file
或多个文件
var files = choofdlog.FileNames; // for multiple files.
要获取文件的目录,您可以使用Path.GetDirectoryName
这是Jon Keet的answer关于从路径
答案 4 :(得分:1)
在choofdlog
返回后,您的FileName
持有FileNames
和ShowDialog()
(用于多选)包含文件路径。
答案 5 :(得分:1)
将此类创建为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;
}
}
然后,您可以这样使用:
//ofdSource is an OpenFileDialog
if (ofdSource.ShowDialog(this) == DialogResult.OK)
{
MessageBox.Show(ofdSource.FolderName());
}
答案 6 :(得分:1)
有效的原始快速修复。
如果您只使用OpenFileDialog
,则可以捕获FileName
,SafeFileName
,然后减去获取文件夹路径:
exampleFileName = ofd.SafeFileName;
exampleFileNameFull = ofd.FileName;
exampleFileNameFolder = ofd.FileNameFull.Replace(ofd.FileName, "");
答案 7 :(得分:0)
很抱歉,如果我迟到这里,但我只是认为我应该为OpenDialog提供一个简单得多的解决方案。
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
我之前还没有使用过FolderBrowserDialog,所以我相信其他编码人员的看法。我希望这会有所帮助。