I am trying to load files into a windows froms (vs 2010) richTextBox but only the first line of the file is loading. I'm using:
// Create an OpenFileDialog to request a file to open.
OpenFileDialog openFile1 = new OpenFileDialog();
// Initialize the OpenFileDialog to look for RTF files.
openFile1.DefaultExt = "*.rtf";
openFile1.Filter = "RTF Files|*.rtf";
// Determine whether the user selected a file from the OpenFileDialog.
if (openFile1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// Load the contents of the file into the RichTextBox.
rtbTest.LoadFile(openFile1.FileName, RichTextBoxStreamType.PlainText);
}
I've tried using rtf files created in word or word pad and have tried saving .cs files as .rtf without any success.
Any help appreciated please.
Okay,
It looks like the whole rtb.LoadFile() thing isn't working for yah. Could you please try loading the file this way?:
using(var of = new OpenFileDialog())
{
of.DefaultExt="*.rtf";
of.Filter = "RTF Files|*.rtf";
if(of.ShowDialog() == DialogResult.OK)
rtb.Rtf = System.IO.File.ReadAllText(of.FileName);
}
I hope this helps.
I don't think the cs file is truly rtf. Try using the overload of LoadFile with a stream type such as
rtbTest.LoadFile(openFile1.FileName, RichTextBoxStreamType.PlainText);
Other than that, are you sure the rich text box is big enough to show more than the first line?
Edit
I tried it. I used windows forms in vs2010 (I think you are using windows forms, but not 100% sure). I created an windows forms project and saved the Project.cs as rtf. I added a button and a RichTextBox in the button's click handler I added the code from the question. It actually threw an exception when I loaded Program.rtf because it was not in the right format. I added the RichTextBoxStreamType.PlainText argument to the LoadFile call and it worked. It showed the whole file.
How did you originally save the RTF file in the first place? I agree with Mike Two, the file has got stuff in it that is not really RTF.
You might verify that the file loads properly using Wordpad, which is what I use when working with RTF files.
Update:
One investigative technique you might try is th following: after loading the file into the RichTextBox, check what the debugger gives for the RichTextBox.Rtf property - you should see all the RTF text including formatting. If it is indeed "all there" then you know you're reading the file correctly.
What worries me is that you're trying to view a code file, saved as RTF. This obviously should not be a problem, however, I recommend saving a very simple RTF file with maybe two lines of just normal text (think: lorem ipsum). If that loads ok, then you'll know it's something specific within your code file that you're reading that is screwing things up. Highly unlikely, but it's an obvious troubleshooting tactic.
As a last resort, try it on a different machine.
When all else fails, check the silly stuff... have you set the RichTextBox control be multiline? Or is it set to single line mode? Perhaps you are correctly loading the entire file, but the control is only displaying the first line because that's what you told it :)
Check RichTextBox.Multiline. It's a longshot, but maybe?
I created a sample project with a docked RichTextBox control, kept all the defaults (except Dock = DockStyle.Fill), added a simple File->Open menu and cut'n'pasted your code into the menu handler. The only change I had to make to your code was to change the second LoadFile parameter from RichTextBoxStreamType.PlainText to RichTextBoxStreamType.RichText.
A complex file (links, formatting, graphics, etc) saved from Word opened just fine for me.
Another common problem is that the control is very short. You might think it is filling your client area, but in actuality it is just a narrow strip, so you only see a single line tall. Have you set the size, docking and/or anchor properties properly? Do you see a scrollbar for your document? Is it shorter than you expect?
This will work:
StreamReader sr = new StreamReader(sFileName, Encoding.Default, true);
string sRtfFile = sr.ReadToEnd();
sr.Close();
rtbCombinedFile.Rtf = sRtfFile;
sFileName is of course the full path of the RTF file. StreamReader is part of "System.IO."
Just read a textfile into a string and set the Rtf property of the RichTextBox.
If you're not sure if your text contains Rtf text you could use this class that I wrote. It inherits from the original RichTextBox and has a fallback if the content isn't rtf or wrong formatted.
public class RichTextBoxEx :RichTextBox
{
public new String Rtf
{
get
{
return base.Rtf;
}
set
{
try
{
// is this rtf?
if (Regex.IsMatch(value, #"^{\\rtf1"))
{
base.Rtf = value;
}
else
{
base.Text = value;
}
}
catch (ArgumentException) // happens if rtf content is corrupt
{
base.Text = value;
}
}
}
}
I think the problem is with the RichTextBoxStreamType because you set it to PlainText but you want the RichText to be loaded in the richtextbox control so why not use RichTextBoxStreamType.RichText I have tried the following code and it works properly.
// Create an OpenFileDialog to request a file to open.
OpenFileDialog openFile1 = new OpenFileDialog();
// Initialize the OpenFileDialog to look for RTF files.
openFile1.DefaultExt = "*.rtf";
openFile1.Filter = "RTF Files|*.rtf";
// Determine whether the user selected a file from the OpenFileDialog.
if (openFile1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// Load the contents of the file into the RichTextBox.
richTextBox1.LoadFile(openFile1.FileName, RichTextBoxStreamType.RichText);
}
Not sure if it is the same in WinForms as it is in WPF, but in WPF you have to use a FlowDocument set to the Document Property of the RichTextBox.
this is the code I have to read from a WebStream (same thing can be done for FileStreams
protected static FlowDocument LoadRemoteRtf(string path)
{
var doc = new FlowDocument();
if (!string.IsNullOrEmpty(path))
{
var range = new TextRange(doc.ContentStart, doc.ContentEnd);
var downloader = new WebClient();
Stream stream = null;
try
{
stream = downloader.OpenRead(path);
range.Load(stream, DataFormats.Rtf);
}
catch (Exception ex)
{
var props = new Dictionary<string, object> {{"URL", path}};
Logging.WriteLogEntry("Failed to load remote RTF document.", ex, TraceEventType.Information, props);
}
finally
{
if (stream != null)
{
stream.Close();
}
downloader.Dispose();
}
}
return doc;
}
MyRTB.Document = LoadRemoteRtf("http://myserver.com/docs/remote.rtf");
You can also try setting your RichTextBox Modifiers property to "public" and see if that works, also check that WordWrap property is set to true, that is if the file you are reading is all written on 1 line, just a long line, even if not it will still wrap those long lines based on the size of your RichTextBox.
I don't know if you use it already, have you tried ReSharper?
Related
I have a Windows Service to copy files to a folder and replace Text in Word documents. For the replace in the documents I use this code: Find and Replace text in a Word document
The problem is: The files stay in use until I copy the next files to another folder (and fill out Word document).
My code for the Search and Replace looks like this:
using (var flatDocument = new FlatDocument(fullpath))
{
flatDocument.FindAndReplace("ValueA", "ValueB");
// Save document on Dispose.
}
if I Skip this code the Service runs fine and the Files are not in use after copy. How come it stays in use even after the using clause?
Maybe someone has a clue?
I think there might be a bug in the Developer Center Sample Code Find and Replace text in a Word document.
In short, its keeping the File Handle open by not calling Dispose on the Underlying FileStream in the FlatDocument class. This seems weird as you would think Package.Dispose would clean up this handle, yet it doesn't.
If you modify the code in the FlatDocument class (as i have done in the following), it should fix it
In the constructor
private Stream _stream; // Add this
public FlatDocument(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
_stream = stream; // Add this
documents = XDocumentCollection.Open(stream);
ranges = new List<FlatTextRange>();
CreateFlatTextRanges();
}
In Dispose
public void Dispose()
{
documents.Dispose();
_stream.Dispose(); // Add this
}
I have this bit of code below which saves perfectly fine to a text file, however there is no formatting that is transferred, for example, The below words would save as THISISATESTLAYOUT. I would like the desired output displayed below:
THIS
IS
A
TEST
LAYOUT
I know there's something obvious im missing here so thanks for any help
if (entity.Switch == true)
{
string path = #"filepath....\\Test.txt";
if (!File.Exists(path))
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
sw.Write(entity.comments);
}
}
}
this string is saved in one entity called comments and displays fine within the C# application.
sw.Write and sw.WriteLine both give the same single line output with no spaces
and also entity.comments references a column in an SQL Server Table, and is a VARCHAR(MAX)
you may be using '\n' for newlines. If so use
sw.Write(entity.comments.Replace("\n", "\r\n"));
Change sw.Write to sw.WriteLine
I have created a button where it can upload all the pic files as well as the doc files and the PDF files in the system.
Here is the code for the following:
if (dlg.ShowDialog() == DialogResult.OK)
{
pictureBox2.Image = Image.FromFile(dlg.FileName);
pictureBox2.SizeMode = PictureBoxSizeMode.Zoom;
currentFileName = dlg.FileName;
button2.Enabled = true;
}
}
But i have a error poping out when i want upload a doc files. First of all is it possible to upload a doc file? if yes, then i have a issues showing out of memory in the following line of code
pictureBox2.Image = Image.FromFile(dlg.FileName);
PictureBox control is used only for showing images in a WinForm application (take a look at MSDN). To show .doc file contents in your application you have to use word or some workaround (like posted here)
The reason why you get that error is because a doc file is not a valid image format.
This is outlined in the documentation: http://msdn.microsoft.com/en-us/library/stf701f5.aspx
it is possible to upload a doc file but not in the context you want, i.e. using Image.FromFile and assign it to a picture box object.
http://msdn.microsoft.com/en-us/library/stf701f5.aspx
Out of Memory exception covered in that topic.
The FromFile method will throw an exception if the file type is invalid.
You should do necessary checks on the file type's compatibility first, not to mention wrap a try catch around this method to ensure you're coding as defensively as possible.
Please take reference at the link from MSDN. It will throw OutOfmemoryException when you loading a picture have not appropriate format.
To resolve your problem you should check format of the picture file more than loading directly as above.
Please reference at here to know how can you detect format of an image file.
To loading PDF or Word document you should take reference here.
I am trying to create a simple win application(C#, VS 2010) which creates a text file(at the location where the executable is) with the given filename(provided in a textbox) and content provided in a richtextbox. The code is like:
string executableLocation = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
String path = System.IO.Path.Combine(executableLocation, tbtextname.Text + ".txt");
System.IO.File.WriteAllText(#path, richTextBox1.Text);
richTextBox1.Clear();
tbtextname.Clear();
But it is mixing up everything like if i want to save text:
my
name
is
superman
then it will give text file content in the format like: mynameissuperman. How do I get the text in the format it is entered? Please help.
You would want to do something like this
richTextBox1.SaveFile("Test.txt or your file path",RichTextBoxStreamType.PlainText);
RichTextBox has a method called SaveFile() which saves the contents as a RTF.
This will save all your text including your formatting.
http://msdn.microsoft.com/en-us/library/aa335487(v=vs.71).aspx
The answer has been solved but my apologies
i meant streamwritter not textwritter
Try using the textwritter class
system.io.textwritter writter = new system.io.textwritter("location where you want to save the file")
writter.write("you content");
writter.close();
I am currently coding a C# application that displays a image using PictureBox on a form.
Now, I want to update this image consistently (e.g. every 2 seconds). But I am not able to do this.
Because the new image is also of the same file directory/name and it will be replacing the original image which is loaded. So when I want to replace the image it is showing, "file is being used by another program...etc)."
Basically, I want to use PictureBox to load an image and this image will be consistently updated as the loaded image is being changed at it's directory.
Is this possible? Is there any other way to do this in C#?
Thanks In Advance,
Perumal
It sounds as if a stream isn't closed. Try to call stream.close(); after you have loaded your image. If you are loading your image like this Image i = new Image(File.Open("blub.png")); Then you will have to rewrite it a bit like this;
FileStream fs = File.Open("blub.png");
Image img = new Image(fs);
fs.Close();
fs.Dispose();
Just use a timer (called timeImageChange in the example below) and rename the files two different files names. Then you could have something like
bool imageALoaded = true;
timerImageChange.Interval = 2000;
timerImageChange.Enabled = true;
private void timerImageChange_Tick(object sender, EventArgs e)
{
if (imageALoaded)
{
this.pictureBox1.Image = imageB;
imageALoaded = false;
}
else
{
this.pictureBox1.Image = imageA;
imageALoaded = true;
}
}
This should do what you want.
I hope this helps.
My best solution for you is to use the executable file, it's called Volume Shadow Copy. This actually is used in windows for backup as it allow you to copy files that are being used. I have actually tried this tool without C# code but it will be easy to use in code.
Here is a link: http://www.howtogeek.com/howto/windows-vista/backupcopy-files-that-are-in-use-or-locked-in-windows/
My idea is to make a copy of the file with another name and access that file and the delete after you next load, i see that to be the best approach for you.