problems with richTextBox...

OK, I've downloaded the .rar file, decompressed it and loaded it into VS and I now understand what the problem is. Even though you're pasting 10 images into the RTB from the clipboard only one is showing up!

However, I haven't been able to come up with a satisfactory solution to this :(

It seems that whenever you try to paste an image on a new line all the previous ones are deleted, which is bizarre to say the least! As you've probably discovered yourself, it does work if you just paste the image immediately after the text, including wrapping to the next line if there's insufficient space on the current line.

In fact by prefixing the string with "\r\n" and padding it out on the right with sufficient spaces, you can make use of the wrapping behaviour to get it to work in a fashion but it's not very satisfactory:

private void button1_Click(object sender, EventArgs e)

{

DataObject data = new DataObject();

data.SetData("\r\n\r\nSome interesting Text" + new string(' ', 69));

data.SetData(DataFormats.Bitmap, pictureBox1.Image);

Clipboard.SetDataObject(data);

for (int i = 0; i < 10; i++)

{

richTextBox1.SelectionStart = richTextBox1.TextLength;

richTextBox1.SelectionLength = 0;

richTextBox1.Paste(DataFormats.GetFormat(DataFormats.Text));

richTextBox1.SelectionStart = richTextBox1.TextLength;

richTextBox1.SelectionLength = 0;

richTextBox1.Paste(DataFormats.GetFormat(DataFormats.Bitmap));

}

}

You'll notice that to make life easier I've placed both the text and the image on the clipboard using a DataObject so you can paste either one of them to the RTB. 

No... You don't understand me... Of course, I use SetDataObject... I create a simple application, which shows my problem. I upload it on the Rapidshare.Com : http://rapidshare.com/files/52600831/WFA.rar.html ... Try it..

Thank you

When I tried this myself by calling the SaveFile() method on an RTB containing text and an image, it worked fine and both the text and image were visible when I reopened the RTF file in WordPad.

To place image data on the Clipboard you will, of course, need to call the SetDataObject() method rather than the SetText() method.

I was just looking at this again in the hope that something might occur to me and I noticed that you've got the code in the Paint eventhandler for pictureBox2, so every time it's repainted (which can be very often) the code will execute again.

I don't know whether this could be causing the problem, but I'd have thought you only wanted to create the bitamp once and assign it to the pictureBox2.Image property. So, I'd see if it makes any difference if you place the code somewhere else where it will only execute once. 

Yes, I've noticed that legibility can suffer when you draw text on a bitmap rather than directly on the form.

I think the only thing you can do is to experiment with the font. Opinions differ, of course, but I find that Arial and Courier are the easiest to read and Georgia also looks good on bitmaps.

To paste an image from the clipboard to a new line in the RTB, you could use this code:

richTextBox1.Text += "\r\n";

richTextBox1.SelectionStart = richTextBox1.TextLength;

richTextBox1.SelectionLength = 0;

richTextBox1.Paste();

This assumes that the image is in a pastable format.

To get an image onto the clipboard in the first place:

string fileName = @"C:\imagefolder\someimage.bmp";

Bitmap bmp = new Bitmap(fileName);

Clipboard.SetDataObject(bmp);

Ok! Thank you! with text everything allright now. And now how to post Image from Clipboard (or not, it doesn't matter) to richTextBox from new line..???

To add a new line to a RichTextBox, you can do this:

string nextLine1 = "Some more text";

richTextBox1.Text += Environment.NewLine + nextLine1;

To add a further line equal to whatever text is currently in the Clipboard:

string nextLine2 = Clipboard.GetText();

richTextBox1.Text += Environment.NewLine + nextLine2;

So, you'll gather from this that to get something on a new line you precede it by Environment.NewLine which is the same as "\r\n"  (a carriage return, line feed pair) on Windows operating systems and append it to the existing Text property.

To move the caret, say to the end of the existing text, you can do this:

richTextBox1.SelectionStart = richTextBox1.TextLength;

richTextBox1.SelectionLength = 0;