Reading From Rich Text To Variables
Apr 24, 2009
I have a program that saves encrypted data to a file and each variable is separated by a ";". I then read the file though this command:
[Code]...
It places all the encrypted data to a Rich Text Box. I need to decrypt the data and place into variables. How do I read each encrypted piece up to the ";" then decrypt, and place into a variable? I've seen streamreader examples but I don't want to use streamreader unless there is a way I can still get the OpenFileDialog view to be able to select the file location.
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Mar 20, 2011
I want a rich text box to display public variables like (pizza toppings links etc that have been selected in other forms) these variables have declare in a module. But I want the rich text box to display these variables as soon as the screen loads ( a on form load event) if you know what I mean.
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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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Mar 8, 2011
Question 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
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Apr 4, 2010
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
RichTextBox1.LoadFile("C:Documents and SettingsDesktopSigniture.rtf")
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Aug 11, 2011
On the main form of my application, I have a Rich Text Box which is where the user will be entering information. The text is black. then, i have a button which calls the dialogue "Notes" A dialogue appears, with a rich text box. the user should then be able to enter text into the box, click "OK", and the text entered into the Notes dialogue be inserted to the rich text box on the main form -- with the font colour "Red". The rest of the text in the main rich text box on the main form should remain black.
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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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Jul 6, 2010
I am fairly new to vb and have created an alarm program. I have figured out how to write an xml file saving my variables. I can only save one set of variables currently. I would like to save multiple alarms to the xml and read back the xml as a list of alarms that the program is processing. Can someone lead me in the direction to calling the xml a list of alarms and how to read them into variables
maybe if i save the alarms sorted by date and time I could process them as they expire.
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Mar 28, 2010
I have a question, how would i have a button, then when you click it, it puts the text at the text cursor in the RTF?
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Jan 2, 2010
After getting the file name I create a new filestream and load all the bytes from the FileStream into a byte array, now I need to get certain bytes and store them in fields like the second 4 bytes are the time the file was created. When storing these in the variables should I store them as bytes or as string/integers/etc.
Or have I done it completely wrong?
EDIT:Should I be doing this way instead of a filestream?
Dim data() as Byte = File.ReadAllBytes(path1)
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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.
At any rate what I've only been able to do is the following to successfully change the font color of whatever text I highlight in the rich text box:
Private Sub rbtnBlack_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbtnBlack.CheckedChanged
rtbxTextEditor.SelectionColor = Color.Black
End Sub
Private Sub rbtnRed_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbtnRed.CheckedChanged
[Code]...
Is there a way that I could write a sub (I'm assuming I would use a sub, since I don't think I need to return anything, thus eliminating the use of a function) that would handle the action of changing the selected text color in the rich text box without having to use a separate sub for each radio button? Mind you, per my teacher's specs, she doesn't use a button handler for any of this.
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Feb 7, 2009
is it possible to make first 60 characters in a rich text box a different color than the remaining text?
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Jan 5, 2011
I've been using VBA quite a bit in the past to build userforms in Access, that used user-supplied data to custom-build sql statements on the fly, query data from a linked table, read that data into variables, perform calculations and spit out results onto the userform. Now I'm wanting to do some similar things in vb.net 2008.
I would use some code like this:
Set MyRecordset = New adodb.Recordset
MyRecordset.Open "SELECT * FROM Table1", CurrentProject.Connection, adOpenDynamic, adLockOptimistic
MyRecordset.Filter = "ID = '" & Me.cmbAgentName.Value & "'"
With MyRecordset
[Code] .....
Whenever I try this, I get an error message along the lines of "Conversion from type 'Field' to type 'String' is not valid."
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Dec 20, 2011
I am learning visual basic .net and I am attempting to translate some java source code to a vb.net project. The project reads mp3 details and then splits the file accurately according to the frameheader details etc.
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Oct 15, 2009
I will show 3 columns of text in rich text box. i want show the column border with color.i can separate the texts with tabs or spaces but showing data in columns and cells will improve the visual of my program .
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Feb 24, 2012
Okay, so what I want to do is directly output formatted RTF text to a Rich Text Box control in VB.NET. I don't want to find the text, select it and color it as it is not practical for what I'm doing. I've tried outputting RTF code but that isn't working either. Can I actually do this or will I have to write a dll?
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Dec 31, 2011
I am working on an applictation to scan windows files to check for missing files, i have a couple questions on how to do this.I would like to use the %systemroot%system32 that way that it doesn't matter what drive letter it is, i'm not sure how to do this because when i tried it, it told me the file i was looking for didn't exist (in this case C:windowssystem32 undll32.exe) which does exist. Is there some way to use the %systemroot%?
Also, i am trying to print the resaults to a rich text box such as if rundll32.exe is missing put in the box "rundll32.exe is missing". How do I allow it to write it in the box, I tried the print command, but it didn't work.
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Mar 17, 2012
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.
This is one that I was trying to use. I found a few others around, but they all had the same render errors more or less.[URL]...I figured transparency or background images would have been supported natively. Anyone have any ideas? Maybe I missed something in my searches. I didn't really see anything which adds background images in text boxes (rich or otherwise). At this point, I'd just like anything that works, so it doesn't really need to have transparency--just a simple background image would be great.
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Apr 20, 2010
I as part of the support VB code for a larger ASP project, I need to read back the existing data from an Access database, to see if user has changed a value.
I'm reading the existing data back into a DataView using the following function:
Public Shared Function GetPolicyStatus(ByVal intPolicyID As Integer) As DataView
Dim strConString As String
Dim conMyData As OleDbConnection
[Code]....
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Oct 20, 2010
How can I change certain text's color (like Visual Studio does with "Public Class" or "Public Sub") is inside of a Rich Text Box?
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Jun 27, 2009
How can I fully justify text in rich text box?
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Dec 25, 2009
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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Apr 22, 2010
I have ~ 1 page how to that is currently in a text file which I want to add to a richtext box.I am just wondering if there is some way I can just copy/paste it so it keeps its formatting etc.
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Jun 20, 2010
have more than one text color in the Rich Text Box, because when I highlight one word and use the color changer, it changes ALL of the words in the text box, and I want to know how to be able to have a specific word, or words, be a different color.
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May 2, 2010
I want to protect specific text in rich text box , I tried with
RichTextBox1.Select(1, 100)
RichTextBox1.SelectionProtected = True
above code is working fine but when i retreive data from database in .rtf format & I try to protect some text then its not working in first time it works second time
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Sep 2, 2011
what I am trying to do is create an effect in a richtextbox so when the user types any text surrounded by Brackets { } is coloured a different colour to the rest of the text say blue for example. How would I go about doing this?
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Nov 12, 2010
In my program, I have retrieved several lines of text in RichTextBox1.text. I need to get a
name(without the colon) using a keyword that is on the same line.[code...]
Lets say I set a keyword "vacation" and I need the code to get the name Sara that is in the same
line.I have seen some tutorials that retrieve left, middle, right that gets maybe the last two
letters in the string etc but I need it to get the Name without the colon.
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Nov 23, 2009
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
The word want, I want to set a link word.
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Apr 9, 2011
So I've tried a few different things I though may work, and none of them do. I can't figure out how to change the color of the text within the selected rich text box inside a tab control.
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