Colour Certain Strings In RichTextBox?
Nov 17, 2011
I am making a html editor in visual basic 2010 for Uni and i am coming across some problems.
I'm using the richTextBox because it is more editable for what i am doing. The first of my questions is: How can I change the colour of text.
What I have done so far is add a timer that will constantly check to see if the user has entered... lets say "<div>" then i want that text to change to a different colour... say red.
My second question is: Obviously in web dev when you write the <div> tag you have other content inside it like: <div id=""/> so how can i make the entire string between the < and the > or the <div> </div> become the same colour.
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Jun 21, 2010
RichTextBox1.SelectionStart = RichTextBox1.Find("Not Found")
RichTextBox1.SelectionColor = Color.Red
that is my code.. my problem is in my richtextbox1, there are many line that contain "Not Found". So how can i change colour for all of that text to red colour? my code only work only with a single line that contain "Not Found".
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Oct 18, 2010
I have a RichTextBox with an OnChanged event. The OnChanged event should look at each line in the RichTextBox and if the line is of prime length colour it red, otherwise colour it black. How do I do this? I think it is possible to select from index a to index b and set selection colour, but I think this will lose my cursor position.
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Mar 2, 2011
I'm trying to format a string so that when it's put into a RichTextBox, the bold, italics, etc... will be interpreted correctly. I found an example that shows the following string[code]....
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Apr 25, 2009
Why does the following code produce a single string in a richtextbox and the multiplestrings that it is supposed to with a regular textbox? I am concerned about running out of space sizewize so I am trying to get away from a textbox.
Dim updatedHours As New ArrayList
For Each item As String In RichTextBox1.Text.Split(vbNewLine)
Dim linepart() As String
[code]......
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May 7, 2010
Is there any way to change the colour (background colour or text colour) of just a certain item or item(s)?
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Feb 15, 2010
I am writing a little app for the kids at a local kindergarden and I have some trouble with my code. I have a RichTextBox containing several times in the text the name John. I want to replace randomly the name John with other women names like below
So I have this:
Public Sub Replacements()
RichTextBox1.Text="John goes to the car and leaves. John it's taking a nap. Since John works late so (s)he won't be home for dinner. John loves the kids and the kids love John and made a really nice picture"
[Code]......
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May 15, 2012
Why does the following code produce a single string in a richtextbox and the multiple strings that it is supposed to with a regular textbox? I am concerned about running out of space sizewize so I am trying to get away from a textbox.
Dim updatedHours As New ArrayList
For Each item As String In RichTextBox1.Text.Split(vbNewLine)
Dim linepart() As String
Dim oldTimeIn As Date
[code]....
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Dec 12, 2010
I want the strings of RichTextBox1 and RichTextBox2 (strings are separated by newlines) printed to RichTextBox3 along with selected RadioButton's name and ticked CheckBox's name.[code]
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Feb 25, 2010
I have situation where I have to retrieve different fields from Access Database and put into one RichTextBox but they have to be displayed as DIFFERENT font types/colors.
I am able to get the database field data into RichTextBox but not able to set font styles or font colors. They are displayed in default font style. Please help me with sample code by giving example, i.e., taking two to three different string types and sending them to RichTextBox with different font color and styles.
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Mar 15, 2012
To .NET after getting tired of using VB6 due to the lack of functionality. I'm trying to create a log on method for a system which will involve users selecting a colour from a paint panel and then placing/drawing the colour in 1 or more tiles of a grid, basically a 3x3 grid in which for example they selected the blue colour and drew in the top left tile and the bottom left tile. The logon is selecting the correct colour and placing the colour in the appropriate tile. What i want them to be able to do is place even a single pixel of colour so it has a high accuracy. So far i have a timer which loops from the width of the grid to the height of the grid.
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
Dim BMP As New Drawing.Bitmap(1, 1)
Dim GFX As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(BMP)
GFX.CopyFromScreen(New Drawing.Point(MousePosition.X, MousePosition.Y), _
[CODE]...
To start with i have just hard coded the colour i want it to detect. At present it produces an error. Parameter must be positive and < Width the error is on System.Drawing.Point(i,j). If i place the mouse over the colour then run the program it will say it has been found, but otherwise it wont find the colour. I believe i am not updating the location of the pixel or something to that effect.
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Nov 30, 2011
I've got a combobox which loads the system colour list, the selected colour is stored in the registry (i've tried storing the index number value aswell as the colour name - how can i get the combobox to display the stored colour as the default colour when the form loads? It always defaults to the first item in the colour list I've tried
[Code]....
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Apr 8, 2009
So I have got a program with a timer on, a few labels displaying coordinates, and two buttons. Here is my
[code]...
It displays the color of the pixel at the coordinate typed into the text boxes.I have a video of a tennis ball which is bouncing on the spot, and the background in brown, so when the tennis ball comes into view there is a significant color change and i want it to start and stop a timer each time the colour changes significantly.So my question is, how do i get it to check whether the colour chas changed significantly?
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Apr 8, 2010
My VB2010 programme changes the background colour of a button (butExtra.BackColor = Color.Red). But how do I restore the colour to the default "Control" colour?
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May 30, 2011
i am looking to change the windows colour and colour intensity. These settings are accessable through Control PanelAppearance and PersonalizationPersonalizationWindow Color and Appearance But is there a way that i can remotely change these two settings through functions in my windows form application? Also is there any way of removing the slight blur on the window bars/taskbar when using an aero theme?
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Sep 16, 2009
I'd like to replace all the white pixels in a bitmap image with pixels of the colour "Color.FromKnownColor(KnownColor.MenuHighlight)". Is there some method in the Image, Bitmap or Graphics classes I can use, or will I simply have to inspect each pixel in the image with GetPixel, check whether it is a white pixel, and then set it with SetPixel?Here is the code I am using now:
Private Shared Sub highlight(ByVal b As Bitmap)
Dim highlightColour As Color = Color.FromKnownColor(KnownColor.MenuHighlight)
Dim whiteARGB As Long = Color.White.ToArgb
[code]......
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Oct 16, 2009
Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
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Aug 13, 2009
I am working on a UDP Client/Server, and currently i have them sending back and forth strings, which i convert to bytes, and then open the bytes to read. I want to now send an Object instead of those strings, which includes multiple unsigned integers and strings.
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Aug 5, 2010
I have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.
Here is the method I wrote:
Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))
[code].....
It works, but I would rather use built in functions whenever possible.
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Oct 16, 2009
I'm migrating from VB6 to VB.NET, in hence my questions below:
I have to write a function that returns array of strings.
How can I initiate it to empty array? I need it since I have to check if it's empty array after it returns from this function.
Is list of arrays better for this purpose? If I use a list - Is it empty when it firstly defined? How can I check it it's empty?
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Aug 26, 2010
I have a richtextbox with a large file inside....I want to be able to search for "Fornication" within the text (KJV Bible) and have every instance of that word to pop up into another richtextbox along with the scripture it is in.
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Aug 15, 2011
I have been looking for examples to find the string between two strings. This top one works fine;
Public Sub ReadData(ByRef keywordStart As String, ByRef keywordEnd As String, ByVal filename As String)
Using reader = New StreamReader(filename)
[Code].....
Now the first one is fine - Ext_Volume is result of the string between the strings <Volume> and </Volume>. <Volume> and </Volume> are unique so this is straight forward.
However the second one - "^FDExp:" is unique, but "^FS" is not unique. There are occurances of "^FS" before and after "^FDExp:".
How do I get the string to search AFTER the occurrence, not before etc?
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Jun 24, 2011
Dim str As String
Dim str2 As Array
str = "blabla duhduh"
str2 = str.Split(" ")
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Apr 6, 2012
Say the string is something like
bla bla bla bla (cat) bladfdskdfd dsgdsdksf (dog)
dfdshfdskdskfsdfkhsdf sdkfhdsfkdf (kathy) fdsfhdskfhdsfkd (doggy)
I want a generic.list (of string) containing
cat
dog
kathy
doggy
How to do that with regular expression in vb.net
Later I want to do something more complicated like getting all strings between "url":" and ", from this strings
[Code].....
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Jan 8, 2012
Is there an easy way to find a certain string within a string and then return the strings that you find as an array?I have written this:
Public Function FindStrings(ByVal strSourceString As String, ByVal strStartString As String, ByVal strEndString As String) As String()
Dim StringStartposition As Integer
Dim StringEndPosition As Integer
Dim Currentposition As Integer = 1
[Code]...
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Jan 16, 2011
I have this string called time. It's value is in this format: HH:MM:SS The numbers change, but the format stays the same. I want to separtate the code into 3 strings Hour, Minutes, Seconds.
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Jun 28, 2011
I'm currently having a problem dragging and dropping my label1.text to a richtextboxt which isn't created on design time...well im currently found a solution but i think it is only for a temporary solution because i use a drag and drop i drag it to a textbox then it willl transfer the data to the richtextbox....through the use of the textbox... here is the code ive come through..[code]...
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May 14, 2009
I have a DataGridView that has some columns with dates. It binds to an in-memory Datatable which gets loaded from an string array of data passed back from the backend Some of the rows returned have nulls for the date columns. Solution 1: If I define the Date column in the DataTable as "string" I can easily convert those nulls to empty strings and display it in the grid as empty strings (desired results). However, if the user clicks on the date column header to sort by date, it doesn't order the rows as you want. You get a purely string sort order. Not acceptable
[Code]...
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Jul 25, 2011
I am creating a text editor like notepad. Well its an advance type because it is a tabbed notepad type. It saves html files.
I only created tabcontrol on the design time named TabControl1. the tabpages and the richtextbox are created on the form load and when adding tabs. [code]...
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Jul 26, 2011
I have 2 forms. The 1 is named frmMain. inside of it is a Richtextbox named RTB.
The other form is named frmInsert. Inside of it is a Richtextbox named rtbtext.[code]..
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