Unable To Load Rich Text Files Into Rich Text Box?

Jan 12, 2009

I am unable to load rich text files into my rich text box. It worked fine yesterday, would there have been anything I could have changed by accident?

With OpenFileDialog
.Filter = "Text format (*.txt)|*.txt|Rich Text Format (*.rtf)|*.rtf|All files (*.*)|*.*"

[Code]...

but I am getting the error File format is not valid when i attempt to open any Rich Text file

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I have a rich text box which I use in order the user is able to add pictures, coloured writing, different font etc... however I need to load specific text in the rich text box when the user load the Form.how I can add (I guess) the HTML to load this every time the user load the form.

P.S the text will change depending on who loads the form so I can not do a simple

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Here is the portion of my code that i am referring to.

Try
Dim fileText As String = My.Computer.FileSystem.ReadAllText("c:\" & selectedHero & ".rtf")

infoDisplay.AppendText(fileText)
infoDisplay.Rtf.Format()

Catch
MsgBox("Selected Hero currently has no File with us.")
End Try

Now heres the problem. In the file i have a few pictures and its formatted and what not. I thought since its a RTF file and the Box is RTF it would auto format.... but anyways. It appears like this in the RTF Box.

{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fswiss\fcharset0 Arial;}}
{\*\generator Msftedit 5.41.15.1507;}\viewkind4\uc1\pard\f0\fs20{\object\objemb{\*\objclass Paint.Picture}\objw3000\objh3000{\*\objdata

[CODE]...

Ok so im not sure how i can read from a RTF file and put it in the RTF box with the right format....Ive been searching around for a while.

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[Code]....

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Imports System.Xml
Imports System.IO
Imports System[code]........

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Read/display Directory Files In Listbox To Rich Text Box?

Mar 14, 2011

my knowledge of VB.net is limited and i'm really trying hard to figure this problem out...

what i did was create a list box and populate it with a directory ("C:Documents and Settingsuserfolder1")...

once the listbox displays the files from the directory, i want to select a certain file and that file will be opened up in a rich text box.What i found to display the directory in a listbox is:

Dim directory As New IO.DirectoryInfo("C:Documents and SettingsjtanDesktopRECV")
Dim diar1 As IO.FileInfo() = directory.GetFiles()
Dim dra As IO.FileInfo
Dim files As String

[Code]...

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VS 2010 - Rich Text Box - Getting User Text In The Text Changed Event

Jan 20, 2011

I'm Making a Simple syntax highlighter and I'm Doing the highlighting in the text Changed event of a RTB and for obvious reasons I can't re highlight the whole document each time someone presses a key so i highlight one line each time the text changes. But this creates a Problem. If someone pastes code into the RichTextBox It only highlights the last Line. So is there a way to get if the user typed the text in with his keyboard or pasted it from the clipboard in the text Changed event?

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Insert Text To Rich Text Field At Text Cursor?

Mar 28, 2010

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Oct 8, 2010

everyone! I've been at this for a while, and I'm not sure how this issue can be resolved:I'm working on a project in VB.Net, and I have a form with a rich text box. I have a groupbox with 4 radio buttons inside that are intended to change the font color of the text. Coincidentally, I have to repeat this same functionality for a 2nd set of radio buttons that would change the text font family.

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Private Sub rbtnBlack_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbtnBlack.CheckedChanged
rtbxTextEditor.SelectionColor = Color.Black
End Sub
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[Code]...

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I've been wanting to create a look like the attached jpeg Ive been looking around for a few hours for a solution to make text boxes transparent or have a background image. I've found a few projects on this form and elsewhere which include transparent text boxes, but every time I try to use it the way I need to--with the text box over a picture box--there are always various rendering errors. Most of the time, the text box is transparent if its just placed on the form (not over any other controls). But when I place them over other controls (like picture boxes), the 'transparent background' always take on the color of the form background.

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I want to transfer data from one rich text box to another but when i use RichTextbox2.text = RichTextbox1.text it transfer just text not images.if there is any way to do so?

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Large Chunks Of Text In A Rich Text Box?

Apr 22, 2010

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I want to protect specific text in rich text box , I tried with

RichTextBox1.Select(1, 100)
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Sep 2, 2011

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I'm trying to make a program that can do some statistics on text in a rich text box. I'd like to count the number of instances where text appears with a certain back color, for example where text is "highlighted" with yellow.

There seems to be no function to get the backcolor of text at a specific index, you can only get the backcolor of text which is selected, like this:

Dim backColor As Color
backColor = RichTextBox.SelectionBackColor

This means, by applying this nasty trick, I would have to manually select every character in the rich text box before I can find the backcolor:

For i = 0 To RichTextBox.Text.Length
RichTextBox.Select(i, 1)
If RichTextBox.SelectionBackColor = Color.Yellow Then
yellows = yellows + 1
End If
Next

However, this takes a very long time, because the program has to select and deselect every character.

What options are there to speed up the process? Disabling the paint event?

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Jul 21, 2009

I want set a line of text link in rich text box of vb.net. Like for example: I want to know you

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