I have the app below. I modified it slightly for easier testing for readers here. I notice that when I set the Filename with an extension, e.g. test.txt, the txt extension is removed by the dialog. However I want users to be able to specify an extension, and more importantly I want to be able to set the extension. One way to hack it in I figure is to modify the filter based on the extension I have. Is this the only way?
I am using VS 2010 Express.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.IO;
using System.Windows;
namespace SpeedDating
{
partial class Program
{
[STAThread]
static void Main(string[] args)
{
Form form = new Form();
form.WindowState = FormWindowState.Minimized;
form.ShowInTaskbar = false;
form.TopMost = true;
form.Show();
string filename = "test.txt";
string ext = filename.Substring(filename.LastIndexOf('.'));
SaveFileDialog dialog = new SaveFileDialog();
dialog.Title = "SpeedDating App";
dialog.RestoreDirectory = true;
dialog.CheckFileExists = false;
dialog.CheckPathExists = false;
dialog.SupportMultiDottedExtensions = true;
dialog.AddExtension = false;
dialog.Filter = "All files (*.*)|*.*";
dialog.FileName = DateTime.Now.ToString("yyyyMMdd") + ext;
DialogResult result = dialog.ShowDialog();
if (result == DialogResult.OK && dialog.FileName != "")
{
try
{
FileStream outfs = File.Create(dialog.FileName);
FileStream infs = File.Open(filename, FileMode.Open);
infs.CopyTo(outfs);
infs.Close();
outfs.Close();
MessageBox.Show(form, "Copied file.");
}
catch (NotSupportedException ex)
{
MessageBox.Show(form, "Probably removed the original file.");
}
}
else if (result != DialogResult.Cancel)
{
MessageBox.Show(form, "No path found to write to.");
}
form.Close();
}
}
}
and more importantly I want to be able to set the extension
You can set the .DefaultExt(), .AddExtension(), .Filter(), and .FilterIndex() properties:
string filename = "test.xyz";
SaveFileDialog dialog = new SaveFileDialog();
dialog.Title = "SpeedDating App";
dialog.RestoreDirectory = true;
dialog.CheckFileExists = false;
dialog.CheckPathExists = false;
dialog.SupportMultiDottedExtensions = true;
dialog.Filter = "All files (*.*)|*.*";
dialog.DefaultExt = System.IO.Path.GetExtension(filename);
if (dialog.DefaultExt.Length > 0)
{
dialog.AddExtension = true;
dialog.Filter = dialog.DefaultExt + " files (*." + dialog.DefaultExt + ")|*." + dialog.DefaultExt + "|" + dialog.Filter;
dialog.FilterIndex = 0;
}
dialog.FileName = DateTime.Now.ToString("yyyyMMdd");
DialogResult result = dialog.ShowDialog();
if (result == DialogResult.OK && dialog.FileName != "")
{
Console.WriteLine(dialog.FileName);
}
*Note that if the option to display "File Extensions" is turned OFF in File Explorer, then the dialog will also hide the extension...BUT the above setup will add the set extension to the .FileName() value returned by the dialog.
Related
CommonOpenFileDialog cicon = new CommonOpenFileDialog();
cicon.IsFolderPicker = false;
cicon.Title = "Choose Icon";
cicon.Filters.Add(new CommonFileDialogFilter("Executable Files", "*.exe"));
cicon.Filters.Add(new CommonFileDialogFilter("Icon Files", "*.ico*"));
if (cicon.ShowDialog() == CommonFileDialogResult.Ok)
{
try
{
Image fico = System.Drawing.Icon.ExtractAssociatedIcon(cicon.FileName).ToBitmap();
metroTextBox1.Icon = fico;
}
catch (Exception re)
{
winmsg msg = new winmsg();
msg.Title = "Icon Error - Cannot find any Icon";
msg.Content = "Path: " + re.Message;
msg.ShowDialog();
msg.Dispose();
}
}
else
{
return;
}
I am getting Open file dialog after file chosen, What could be the issue? Above code for click on CustomButton in Metrotextbox.
Here is my code. I can't seem to use the openFileDialog with the way I used the StreamReader? Any ideas please.
StreamReader reader = null;
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "c:\\";
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
openFileDialog1.FilterIndex = 2;
openFileDialog1.RestoreDirectory = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
try
{
if ((reader = openFileDialog1.OpenFile()) != null)
{
using (reader)
{
textBox2.Text = reader.ReadLine();
textBox3.Text = reader.ReadLine();
}
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
}
}
Thank you.
OpenFileDialog.OpenFile() returns a Stream:
if ((var stream = openFileDialog1.OpenFile()) != null)
{
using (var reader = new StreamReader(stream))
{
// ...
}
}
Alternatively, so you can omit obtaining the stream manually and ugly null-check following it (will it return null anytime, or rather throw an exception?):
using (reader = new StreamReader(openFileDialog1.Filename))
{
// ...
}
I have the following code:
Open File Code
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "Open File";
ofd.FileName = "";
ofd.Filter = "Rich Text Files (*.rtf)|*.rtf|Text Document (*.txt)|*.txt|Microsoft Word Document (*.doc)|*.doc|Hypertext Markup Language Document (*.html)|*.html"; StreamReader sr = null;
if (ofd.ShowDialog() != DialogResult.Yes) return;
{
NewFile();
}
try
{
sr = new StreamReader(ofd.FileName);
this.Text = string.Format("{0} - Basic Word Processor", Path.GetFileName(ofd.FileName));
richTextBoxPrintCtrl1.Text = ofd.FileName;
richTextBoxPrintCtrl1.Text = sr.ReadToEnd();
filepath = ofd.FileName;
richTextBoxPrintCtrl1.LoadFile(fileName, RichTextBoxStreamType.RichText);
}
catch
{
}
finally
{
if (sr != null) sr.Close();
}
New File Code
if (richTextBoxPrintCtrl1.Modified)
{
DialogResult r = MessageBox.Show(this, "Save Current Document?", "Save?", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (r == DialogResult.Yes) SaveFile();
if (r == DialogResult.Cancel) return;
}
this.Text = string.Format("Untitled - Basic Word Processor");
richTextBoxPrintCtrl1.Text = "";
filepath = null;
}
}
SaveFileAs Code
SaveFileDialog sfdSaveFile = new SaveFileDialog();
sfdSaveFile.Title = "Save File";
sfdSaveFile.FileName = "Untitled";
sfdSaveFile.Filter = "Rich Text Files (*.rtf)|*.rtf|Text Document (*.txt)|*.txt|Microsoft Word Document (*.doc)|*.doc|Hypertext Markup Language Document (*.html)|*.html";
if (sfdSaveFile.ShowDialog() == DialogResult.OK)
try
{
filepath = sfdSaveFile.FileName;
SaveFile();
this.Text = string.Format("{0} - Basic Word Processor", Path.GetFileName(sfdSaveFile.FileName));
}
catch (Exception exc)
{
}
SaveFile Code
if (filepath == null)
{
SaveFileAs();
return;
}
StreamWriter sw = new StreamWriter(filepath);
//StreamWriter stwrite = null;
try
{
sw.WriteLine(richTextBoxPrintCtrl1.Text);
richTextBoxPrintCtrl1.Modified = false;
sw.Close();
}
catch (Exception e)
{
MessageBox.Show("Failed to save file. \n" + e.Message);
}
finally
{
if (sw != null) sw.Close();
}
Currently, the program skips the NewFile event (even if the text has been modified). How can I make it so that when I click "Open", it asks me if I would like to save (if the text is modified). Then if I click cancel, it returns me to the form?
Sorry. I'm really new to programming so this is all a learning curve.
Okay, I think I see what's going on here. First off I don't believe return; works the way you think it does.
if (ofd.ShowDialog() != DialogResult.Yes) return;
{
NewFile();
}
You have a return; call that happens if the show dialog is not yes. The { newFile() } code doesn't need braces around it. So those lines are really:
if (ofd.ShowDialog() != DialogResult.Yes) return;
NewFile();
Now, given your requirement, NewFile is called WAY too late in the game anyway. You want that to happen before you ask them what to open; just like most other windows programs work.
But, there's another issue. Your return statement in the NewFile method is simply returning from NewFile. It's not telling the previous method to bail out.
So the NewFile method needs a return type to indicate whether to allow the calling method to go forward or not.
And, looking at your save file you have a return method there too. What's with all of the return; calls?
Which brings us back to how do we fix this?
Answer: rewrite the whole thing. Starting with the following method:
private Boolean CanClear() {
Boolean result = false;
if (richTextBoxPrintCtrl1.Modified)
{
DialogResult r = MessageBox.Show(this, "Save Current Document?", "Save?", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (r == DialogResult.Yes) {
SaveFile();
result = true;
}
} else {
result = true;
}
return result;
}
Now, in your Open and New file methods do the following (assuming these are the method headers)
protected void OpenFile(...) {
if (!CanClear()) return;
.... now execute the code to load the open dialog and the selected file.
}
protected void NewFile(...) {
if (!CanClear()) return;
this.Text = string.Format("Untitled - Basic Word Processor");
richTextBoxPrintCtrl1.Text = "";
filepath = null;
}
The problem is here:
if (ofd.ShowDialog() != DialogResult.Yes) return;
{
NewFile();
}
remove that return. But, as #Chris says, you should ask whether to save the current file or not before the user selects the new file to open.
try
{
OpenFileDialog dialog = new OpenFileDialog();
String appData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
string tempPath = System.IO.Path.GetTempPath();
dialog.InitialDirectory = tempPath;
dialog.Multiselect = true;
dialog.Filter = "Temp files (*.tmp)|*.tmp";
dialog.ValidateNames = false;
if (dialog.ShowDialog() == DialogResult.OK)
{
string[] filePaths = dialog.SafeFileNames;
foreach (string s in filePaths)
richTextBox1.Text += s;
//MessageBox.Show("");
}
}
catch
{
MessageBox.Show("Error Occured");
}
when i selecting files (which already in use in another application) in openfiledialog I getting error but still I want their paths...
This is apparantly an issue with OpenFileDialog and MultiSelect "true." See this post for a discussion on the problem (and some possible solutions):
http://social.msdn.microsoft.com/forums/en-US/netfxbcl/thread/56fbbf9b-31d5-4e89-be85-83d9cb1d538c/
Setting openFileDialog.ValidateNames = false; worked for me.
try
String tempPath = System.IO.Path.GetDirectoryName(dialog.FileName) + #"\";
I'm trying to print a PDF file using Process object. And up to certain extent I could print it successfully. But now I want to set printer properties.. like no of copies, Paper size etc. But I don't see any property to set these values.
I'm using following code to print PDFs
string fileName = "";
string arguments = "";
string verbToUse = "";
int i = 0;
ProcessStartInfo startInfo = new ProcessStartInfo();
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "c:\\";
openFileDialog1.Filter = "pdf files (*.pdf)|*.pdf|All files (*.*)|*.*";
openFileDialog1.FilterIndex = 2;
openFileDialog1.RestoreDirectory = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
if ((fileName = openFileDialog1.FileName) != null)
{
startInfo = new ProcessStartInfo(fileName);
if (File.Exists(fileName))
{
i = 0;
foreach (String verb in startInfo.Verbs)
{
// Display the possible verbs.
MessageBox.Show(i.ToString() + ". " + verb);
i++;
}
}
}
//Console.WriteLine("Select the index of the verb.");
string index = "2";
if (Convert.ToInt32(index) < i)
verbToUse = startInfo.Verbs[Convert.ToInt32(index)];
else
return;
startInfo.Verb = verbToUse;
if (verbToUse.ToLower().IndexOf("printto") >= 0)
{
//Printer Name
arguments = #"\\hydfsvt02\HPLaserJ";
startInfo.Arguments = arguments;
}
Process newProcess = new Process();
newProcess.StartInfo = startInfo;
try
{
newProcess.Start();
MessageBox.Show(newProcess.ProcessName + " for file " + fileName + " started successfully with verb " + startInfo.Verb);
}
catch (System.ComponentModel.Win32Exception ex)
{
MessageBox.Show(" Win32Exception caught!");
MessageBox.Show(" Win32 error = " + ex.Message);
}
catch (System.InvalidOperationException)
{
MessageBox.Show("File " + fileName + " started with verb " + verbToUse);
}
}
I have written an application that does batch printing of PDF files.
It's not possible to specify the printer settings that you want to use. It's not even possible if you use the COM interface with the Adobe Standard/Pro versions.
Your options are to either:
Buy a license to a third-party PDF renderer that you can use to convert the PDF to Bitmaps and use the PrintDocument to control the PrinterSettings
Use something like GhostScript to convert the PDF files to BMP files and then use the PrintDocument class to print the BMP files. You can then control the PrinterSettings.
private void startPrintingButton_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
if (DialogResult.OK == ofd.ShowDialog(this))
{
PrintDocument pdoc = new PrintDocument();
pdoc.DefaultPageSettings.PrinterSettings.PrinterName = "ZDesigner GK420d";
pdoc.DefaultPageSettings.Landscape = true;
pdoc.DefaultPageSettings.PaperSize.Height = 140;
pdoc.DefaultPageSettings.PaperSize.Width = 104;
Print(pdoc.PrinterSettings.PrinterName, ofd.FileName);
}
}
private void Print(string printerName, string fileName)
{
try
{
ProcessStartInfo gsProcessInfo;
Process gsProcess;
gsProcessInfo = new ProcessStartInfo();
gsProcessInfo.Verb = "PrintTo";
gsProcessInfo.WindowStyle = ProcessWindowStyle.Hidden;
gsProcessInfo.FileName = fileName;
gsProcessInfo.Arguments = "\"" + printerName + "\"";
gsProcess = Process.Start(gsProcessInfo);
if (gsProcess.HasExited == false)
{
gsProcess.Kill();
}
gsProcess.EnableRaisingEvents = true;
gsProcess.Close();
}
catch (Exception)
{
}
}
This code will print PDF files as well as adjust the printing settings.