I'm trying to open multiple files at once with the OpenFileDialog, using FileNames instead of FileName. But I cannot see any examples anywhere on how to accomplish this, not even on MSDN. As far as I can tell - there's no documentation on it either. Has anybody done this before?
You must set the OpenFileDialog.Multiselect Property value to true, and then access the OpenFileDialog.FileNames property.
Check this sample
private void Form1_Load(object sender, EventArgs e)
{
InitializeOpenFileDialog();
}
private void InitializeOpenFileDialog()
{
// Set the file dialog to filter for graphics files.
this.openFileDialog1.Filter =
"Images (*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|" +
"All files (*.*)|*.*";
// Allow the user to select multiple images.
this.openFileDialog1.Multiselect = true;
// ^ ^ ^ ^ ^ ^ ^
this.openFileDialog1.Title = "My Image Browser";
}
private void selectFilesButton_Click(object sender, EventArgs e)
{
DialogResult dr = this.openFileDialog1.ShowDialog();
if (dr == System.Windows.Forms.DialogResult.OK)
{
// Read the files
foreach (String file in openFileDialog1.FileNames)
{
// Create a PictureBox.
try
{
PictureBox pb = new PictureBox();
Image loadedImage = Image.FromFile(file);
pb.Height = loadedImage.Height;
pb.Width = loadedImage.Width;
pb.Image = loadedImage;
flowLayoutPanel1.Controls.Add(pb);
}
catch (SecurityException ex)
{
// The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. Please contact your administrator for details.\n\n" +
"Error message: " + ex.Message + "\n\n" +
"Details (send to Support):\n\n" + ex.StackTrace
);
}
catch (Exception ex)
{
// Could not load the image - probably related to Windows file system permissions.
MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
+ ". You may not have permission to read the file, or " +
"it may be corrupt.\n\nReported error: " + ex.Message);
}
}
}
You can use this method for text files:
OpenFileDialog open = new OpenFileDialog();
open.Filter = "All Files *.txt | *.txt";
open.Multiselect = true;
open.Title = "Open Text Files";
if (open.ShowDialog() == DialogResult.OK)
{
foreach (String file in open.FileNames)
{
string temp = YourRichTextBox.Text;
YourRichTextBox.LoadFile(file, RichTextBoxStreamType.PlainText);
YourRichTextBox.Text += temp;
}
}
Related
I am trying to browse multiple image files and copy them to another folder. So, what I do is when I browse the image I storeit in flowlayoutpanel first, after that I create a button to copy all the image from flowlayutpanel to the destination folder. Now,I have a problem when I copy to another folder even if it has a different file name. Any suggestions to solve this question.
*this is the code to copy file to folder.
private void button2_Click(object sender, EventArgs e)
{
foreach (TextBox tb1 in TextBoxes1)
{
MessageBox.Show(tb1.Text);
String[] files = openFileDialog1.FileNames;
String newDir = #"C:\Users\Public\Pictures\Sample Pictures\Modified";
System.IO.Directory.CreateDirectory(newDir);
Parallel.ForEach(files, (textboxes) =>
{
foreach (TextBox tb in TextBoxes)
{
String filename = System.IO.Path.GetFileName(tb.Text);
var bitmap = new Bitmap(textboxes);
String text = Path.Combine(newDir, filename);
string toDisplay = string.Join(Environment.NewLine, files);
MessageBox.Show(toDisplay);
bitmap.Save(text);
}
});
}
}
* this is the code how i browse the image file and show in flowlayout
private void button1_Click_2(object sender, EventArgs e)
{
DialogResult dr = this.openFileDialog1.ShowDialog();
if (dr == System.Windows.Forms.DialogResult.OK)
{
// Read the files
foreach (String file in openFileDialog1.FileNames)
{
// Create a PictureBox.
try
{
Panel panel = new Panel();
PictureBox pb = new PictureBox();
TextBox tb = new TextBox();
TextBox tb1 = new TextBox();
Image loadedImage = Image.FromFile(file);
pb.Height = 200;
pb.Width = 200;
pb.Image = loadedImage;
pb.SizeMode = PictureBoxSizeMode.StretchImage;
tb.Text = Path.GetFileName(openFileDialog1.FileName);
tb1.Text = openFileDialog1.FileName;
//panel.Controls.Add(pb);
panel.Controls.Add(tb);
panel.Controls.Add(tb1);
panel.Height = 200;
panel.Width = 200;
flowLayoutPanel1.Controls.Add(panel);
TextBoxes.Add(tb);
TextBoxes1.Add(tb1);
}
catch (SecurityException ex)
{
// The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. Please contact your administrator for details.\n\n" +
"Error message: " + ex.Message + "\n\n" +
"Details (send to Support):\n\n" + ex.StackTrace
);
}
catch (Exception ex)
{
// Could not load the image - probably related to Windows file system permissions.
MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
+ ". You may not have permission to read the file, or " +
"it may be corrupt.\n\nReported error: " + ex.Message);
}
}
}
I guess parallel.foreach is the culprit. You are using multiple threads when using Parallel.foreach
In other words, you have two threads doing the same thing.
I would suggest you to try with a simple foreach loop.
i manage to do when i browse multiple image path in flowayoutpanel, and click on button save so, all the image path will save to a folder, my problem is i can browse the image path and show in flowlayoutpanel, but i dun know how to get the image path from it and copy to folder, any suggestion to do it?
*this is how i browse image path and show in Flowlayoutpanel
private void button1_Click_2(object sender, EventArgs e)
{
DialogResult dr = this.openFileDialog1.ShowDialog();
if (dr == System.Windows.Forms.DialogResult.OK)
{
// Read the files
foreach (String file in openFileDialog1.FileNames)
{
// Create a PictureBox.
try
{
Panel panel = new Panel();
PictureBox pb = new PictureBox();
TextBox tb = new TextBox();
Image loadedImage = Image.FromFile(file);
pb.Height = 200;
pb.Width = 200;
pb.Image = loadedImage;
pb.SizeMode = PictureBoxSizeMode.StretchImage;
tb.Text = openFileDialog1.FileName;
//panel.Controls.Add(pb);
panel.Controls.Add(tb);
panel.Height = 200;
panel.Width = 200;
flowLayoutPanel1.Controls.Add(panel);
}
catch (SecurityException ex)
{
// The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. Please contact your administrator for details.\n\n" +
"Error message: " + ex.Message + "\n\n" +
"Details (send to Support):\n\n" + ex.StackTrace
);
}
catch (Exception ex)
{
// Could not load the image - probably related to Windows file system permissions.
MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
+ ". You may not have permission to read the file, or " +
"it may be corrupt.\n\nReported error: " + ex.Message);
}
}
}
private void button2_Click(object sender, EventArgs e)
{
foreach(TextBox tb in TextBoxes)
{
File.Copy(tb.Text, dest);
}
}
Obviously you have to store the filenames somewhere, either in a textbox like you did (although I would recommend tb.Text=file instead!), or you are using a separate List<string> (I would recommend the latter! Using a form for storing things is mostly no good idea).
To get the files simply iterate either foreach(Control c in flowLayoutPanel1.Items) and then go down the SubControls to your textbox or use the separate list.
The copy you can do with File.Copy(src, dest).
Hi in my windows form application i want to save some data in a folder and when user selcts the browse button it should browse to reqired folder and should consist of a textbox to enter the filename of user choice. How can i achieve this . The below code is not working for me
private void OutputFolder_button_Click(object sender, EventArgs e)
{
FolderBrowserDialog fd = new FolderBrowserDialog();
try
{
if (fd.ShowDialog() == DialogResult.OK)
{
if (string.IsNullOrEmpty(OutputFolder.Text))
{
MessageBox.Show(" Please provide output file to do backup ");
return;
}
outputFileName = fd.SelectedPath + "\\" + outputFileName;
File.Create(outputFileName).Dispose();
OutputFolder.Text = outputFileName;
//File.Create(outputFileName);
DisplayMainWindow("Selected path to backup" + outputFileName);
Logger.Log("Selected path to backup" + outputFileName);
}
}
catch (Exception ex)
{
MessageBox.Show("Exception" + ex);
}
Sounds like you need the SaveFileDialog class.
You need a SaveFileDialog.
The example in the MSDN page should be enough to get you started.
In debug mode, while running the C# WinFOrms App, After I select the files through the OpenFileDialog, I get the
Error: Could not read file from disk.
Original error: Index was outside the bounds of the array.
Do you have any idea on how to fix this Error?
Here's my code:
// When the user clicks on Select Files Button, this happens
private void sourceFiles_Click(object sender, EventArgs e)
{
Stream myStream;
int i = 0;
OpenFileDialog sourceFileOpenFileDialog = new OpenFileDialog();
this.sourceFileOpenFileDialog.InitialDirectory = "i:\\CommissisionReconciliation\\Review\\";
this.sourceFileOpenFileDialog.Filter = "Excel Files (*.xls;*.xlsx;)|*.xls;*.xlsx;|" + "All Files (*.*)|*.*";
this.sourceFileOpenFileDialog.FilterIndex = 2;
this.sourceFileOpenFileDialog.RestoreDirectory = true;
this.sourceFileOpenFileDialog.Multiselect = true;
this.sourceFileOpenFileDialog.Title = "Please Select Excel Source File(s) for Consolidation";
if (this.sourceFileOpenFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
string tempFolder = System.IO.Path.GetTempPath();
foreach (string FileName in this.sourceFileOpenFileDialog.FileNames)
{
this.sourceFileOpenFileDialog.FileNames[i] = FileName;
listBoxSourceFiles.Items.Add(FileName);
Log("Source Files: " + sourceFileOpenFileDialog.FileNames[i]);
i++;
System.IO.File.Copy(FileName, tempFolder + #"\" + FileName);
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
}
}
}
//method for the sourcefileOpenFileDialog. Do I need anything here?
private void sourceFileOpenFileDialog_FileOk(object sender, CancelEventArgs e)
{
}
//method for the listbox. Do I need anything here?
private void listBoxSourceFiles_SelectedIndexChanged(object sender, EventArgs e)
{
}
Thanks!
What you are doing doesn't seem to make a lot of sense. What is the following line supposed to do?
this.sourceFileOpenFileDialog.FileNames[i] = FileName;
Just change your foreach to this:
foreach (string FileName in this.sourceFileOpenFileDialog.FileNames)
{
listBoxSourceFiles.Items.Add(FileName);
Log("Source Files: " + FileName);
System.IO.File.Copy(FileName, Path.Combine(tempFolder, Path.GetFileName(FileName)));
}
The error arises from the fact, that you have two variables named sourceFileOpenFileDialog. One is a member of your class and one is declared inside the method.
The one that is declared inside the method is only ever used in the following line:
Log("Source Files: " + sourceFileOpenFileDialog.FileNames[i]);
Because this instance is not used to show the dialog to the user, its FileNames property has a Length of 0 and therefore trying to access any items in it results in the exception.
Update:
There is one more problem:
FileName is a complete path, so appending it to the temp path will result in an invalid path. Also, consider using Path.Combine to combine two paths:
Path.Combine(tempFolder, Path.GetFileName(FileName))
Hey Everyone,
Sorry to bother you with this, but I'm having an issue with selecting multiple xlsx files through a file browser window in a winforms application when debugging and can't figure out what I did wrong.
Problem: I set Multiselect=true under the OpenFileDialog but I still cannot select more than one file.
What do I need to change to get the multiSelect feature to work?
Do I need to add anything under sourceFileOpenFileDialog method?
Do I need to add anything under listBoxSourceFiles_SelectedIndexChanged method to get the filenames to load correclty in the listbox?
// When the user clicks on Select Files Button, this happens
private void sourceFiles_Click(object sender, EventArgs e)
{
Stream myStream;
int i = 0;
OpenFileDialog sourceFileOpenFileDialog = new OpenFileDialog();
this.sourceFileOpenFileDialog.InitialDirectory = "i:\\CommissisionReconciliation\\Review\\";
this.sourceFileOpenFileDialog.Filter = "Excel Files (*.xls;*.xlsx;)|*.xls;*.xlsx;|" + "All Files (*.*)|*.*";
this.sourceFileOpenFileDialog.FilterIndex = 2;
this.sourceFileOpenFileDialog.RestoreDirectory = true;
this.sourceFileOpenFileDialog.Multiselect = true;
this.sourceFileOpenFileDialog.Title = "Please Select Excel Source File(s) for Consolidation";
if (sourceFileOpenFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
if ((myStream = sourceFileOpenFileDialog.OpenFile()) != null)
{
using (myStream)
{
foreach (string FileName in sourceFileOpenFileDialog.FileNames)
{
sourceFileOpenFileDialog.FileNames[i] = FileName;
listBoxSourceFiles.Items.Add(FileName);
Log("Source Files: " + sourceFileOpenFileDialog.FileNames[i]);
i++;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
}
}
//method for the listbox. Do I need anything here?
private void listBoxSourceFiles_SelectedIndexChanged(object sender, EventArgs e)
{
}
//method for the sourceFileOpenFileDialog. Do I need anything here?
private void sourceFileOpenFileDialog_FileOk(object sender, CancelEventArgs e)
{
}
I updated the code to reflect sourceFileOpenFileDialog and the MultiSelect or Title doesn't work... Perhaps I'm referencing the onfiledialog wrong? is this the proper prefix to use?
Thanks for looking!
You are using two OpenFileDialogs. You display sourceFilesList but you initialized sourceFileOpenFileDialog. Using consistent naming rules religiously is a great way to avoid bugs like these btw.
Next problem, what is OpenFile() supposed to do when you selected more than one file? What is myStream actually used for?
You are setting up sourceFileOpenFileDialog but then use sourceFileList!!! Make up your mind and only use one.
Fixed the non-working MultiSelect by:
Updating the code to only use one variable sourceFileOpenFileDialog throughout the method and the MultiSelect or Title didnt work...
Removing all references to myStream. myStream was used in an example which i based my code off but i took it out and the multiSelect works!
Here's the working code:
// When the user clicks on Select Files Button, this happens
private void sourceFiles_Click(object sender, EventArgs e)
{
Stream myStream;
int i = 0;
OpenFileDialog sourceFileOpenFileDialog = new OpenFileDialog();
this.sourceFileOpenFileDialog.InitialDirectory = "i:\\CommissisionReconciliation\\Review\\";
this.sourceFileOpenFileDialog.Filter = "Excel Files (*.xls;*.xlsx;)|*.xls;*.xlsx;|" + "All Files (*.*)|*.*";
this.sourceFileOpenFileDialog.FilterIndex = 2;
this.sourceFileOpenFileDialog.RestoreDirectory = true;
this.sourceFileOpenFileDialog.Multiselect = true;
this.sourceFileOpenFileDialog.Title = "Please Select Excel Source File(s) for Consolidation";
if (sourceFileOpenFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
string tempFolder = System.IO.Path.GetTempPath();
foreach (string FileName in this.sourceFileOpenFileDialog.FileNames)
{
this.sourceFileOpenFileDialog.FileNames[i] = FileName;
listBoxSourceFiles.Items.Add(FileName);
Log("Source Files: " + sourceFileOpenFileDialog.FileNames[i]);
i++;
System.IO.File.Copy(FileName, tempFolder + #"\" + FileName);
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
}
}
//method for the listbox. Do I need anything here?
private void listBoxSourceFiles_SelectedIndexChanged(object sender, EventArgs e)
{
}
//method for the sourceFileOpenFileDialog. Do I need anything here?
private void sourceFileOpenFileDialog_FileOk(object sender, CancelEventArgs e)
{
}