Cannot Seem To Find A Caret Position Changed Event On The Normal Richtextbox Control?
Oct 19, 2009
even Word Pad, when you scroll your Caret (the I-beam for browsing through text) through the text, in the font combobox, the font of the text you are browsing through will be displayed, and when you scroll your caret through a different font, the font will be changed. If you're confused, look at attatched picture.
I cannot seem to find a caret position changed event on the normal richtextbox control - and if anyone can show me a custom component with this it would help me a huge amount.So my basic question is how can i replicate the formentioned function in my own VB.NET program.No code is necessary just constructive suggestions, or links to other projects would be welcome. You don't need to quote the forum rules
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Apr 10, 2012
In a .NET 3.5 application, i want to get caret position in a RichTextBox control. The RTB is not XAML. Also, the RTB doesn't have CaretPosition property as described here: [URL] What is the simplest way using which i can get the caret position?
EDIT:To be more specific i want to find out what is the position of the caret from the start of the line on which it is positioned. I can get the line number by using GetLineFromCharIndex(rtb.SelectionStart) but not the offset from the start of the line.
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Oct 7, 2011
How do I set the caret position in a System.Windows.Forms RichTextBox? ScrollToCaret in not Working. Here are my Registry settings. When I save to the registry, It saves. When I try to get were I left off from the previous read, It leaves me at the beginning of the file and not where I left off. [Code]
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May 5, 2009
I datagridview and I populate it using a bindingsource. I have the following code in the bindingsources PositionChanged event and it works as I want it to except when I filter the bindingsource.
Private Sub ProductBindingSource_PositionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ProductBindingSource.PositionChanged
If (Me.ProductBindingSource.Current IsNot Nothing) Then
Dim dr As DataRow = CType(Me.ProductBindingSource.Current, DataRowView).Row
Dim ProductId As Long = CLng(dr.Item(2).ToString)
Dim ResultId As Integer = CInt(dr.Item(0).ToString)
GetReport2(ProductId, ResultId)
End If
End Sub
The scenario is when I click on a row in my datagridview the bindingsources positionchanged event fires and I load a crystal report. Problem is when I filter the bindingsource, even though the first item in the grid is now different the incorrect report is displayed because the bindingsources position hasn't changed.
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Feb 7, 2010
How can I do some code when the user changes what line the caret is on? So something like:
sub textbox1_lineindexchanged (byval ....) Handles Textbox1.Lineindexchanged
'do code based on the current line
end sub
I am using a richtextbox, just I always used it so I just call it a textbox.
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May 10, 2010
This is what I am trying but it doesn't work. The idea is to rest the caret position at the beginning after I hit enter and the conents od Textbox1 are deleted
Private Sub TextBox1_Keydown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
If e.KeyCode = Keys.Enter Then
[Code].....
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Feb 13, 2010
How do you parse the caret position in a text box, then use that for setting the index in a listbox, all in VB.NET
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Sep 4, 2011
I'm making a Singlish-English Word Prosessor.When user typing in a active window's TextBox those letters were automatically converted to the Sinhala language.I did that hard part with sendKeys() Function.But Now I want to set my application windows's location at Active Window's Blinking cursor(Caret) position.So It will easy to user with English-Sinhala Translation thing.
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Feb 24, 2009
I've searched the web for an answer, but i was not able to find a way to hide the caret of a RichTextBox in VB.NET.I've tried to set the RichTextBox.Enabled property to False and then change the background color and foreground color to non-grey ones but that did not do the trick.
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May 10, 2010
I have a textbot that I delete its contents. I want to rest the caret position at the beginning of the textbot once its contents is deleted. How can I do that?
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Aug 21, 2010
there is any way to change the caret? (no the Cursor icon but the vertical little bar at the typing position)
the caret is really very tiny and I like to have option to change it to an yellow block, an red blinking underline or so.
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Jun 21, 2006
How would I go about changing the actual shape of the RichTextBox caret?
I have tried using the CreateCaret and ShowCaret API calls, but they only seem to work with normal text boxes. Is there any way to modify them so they work with RichTextBoxes?
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May 3, 2010
I need to insert a table in a richtextbox where the caret is positioned.
how can i do this without using the clipboard?
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Oct 8, 2010
What is in the English language the opposite of side?
First let me excuse myself not been able to find a relevant newsgroup for this. I am missing 'other general development'.
I am programming a machine that checks the content of a little bag with pills in it. They can be either on a 'normal' position, or they can be in there on laying on their side. How could I translate the 'normal' position? I've thought of 'flat', or (on their) 'back'.
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Jun 23, 2010
I wanted to create a module / tool similar to MS word where user should be able to add controls, resize controls, drag and drop controls.Anyway, I have got lot of references on how to resize control, drag and drop add control etc...my main requirement is i need a way to add grid and should be able to add cells to it. When i resize the grid control, the cell height & width should get extended and compressed accordingly. Also i need to save position of the controls to a text file.Saving positon of other controls is easy but most importantly i need to save each cell position of the grid.
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Dec 17, 2009
I'm trying to make a TextBox with syntax highlighting (for (HTML/CSS) in VB.NET 2008.I figured that if I use RichTextBox.Find(), I can color specific text, but then I need to call RichTextBox.DeselectAll(). The problem is that the the cursor jumps to the beginning of the RTB.
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Dec 14, 2011
I have added 1 tabcontrol to a form, then I added 8 tabpages to the tabcontrol. I set "Multiline" = True, so that all the 9 tabpages will be distributed evenly in 2 row. The problem I'm facing now is the position of the tabpages will be changed automatically when i clicked the tabpages. I know someone also face this problem before in other forum I searched through Google, however there's no answer posted. Is there anyone know the codes that associated to the position of tabpages so that I can write code to fix the position?
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Dec 5, 2010
I am using the following code to populate data in Textbox1:
[Code]...
I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
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Apr 16, 2011
After packaging my created program.... and install it.... if i install it in my system its ok... but if i install it to other system... some labels... changed position....
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Jan 30, 2010
My code editing program, with text colouring and lots more, is almost finished. It uses a rich text box to edit in.On the right is a listbox, called the "suggestion box" The suggestion listbox is kinda large and eats up lots of valuable edit space How can I display my "suggestion listbox" control underneath the caret, like in Visual Basic?
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Dec 25, 2009
Unable to find a normal distribution function for VB8 Found the others I needed Math.Log, Math.Sqrt, Math.Exp but no Math.ND To give an example of the problem that the code needs to do.
P = S*NORMSDIST(D1)-K*e(-Rf*T)*NORMSDIST(D2)
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May 17, 2011
1.Multiple monitors are connection to one computer and they are extended.
2.My window spans to two monitors (Any window like notepad or settings wizard).
3.We change Visual Style From ON to OFF ( i.e. Changed theme from basic and high contrast to Aero or vice versa)
4.The window which was present on two gets shifted to either primary or secondary monitor.
5.This behavior is ok with normal application but I am developing such application which fails if window moves away.
6.I have added handler to check if user changes theme or visual style using :
AddHandler SystemEvents.UserPreferenceChanged, AddressOf UserPreferenceChangedHandler And in UserPreferenceChangedHandler I have checked if UserPreferenceCategory.VisualStyle changed and if it is changed then I have reset the window position back to old values before theme changed , but still it not reverting back to old position.
7.One strange behavior I observed is, it works if I set break point and step through code , but if I remove it then it's not working.
a. Added handler to catch user preferences changed event.
Private Sub RecordingWindow_Load(sender As Object, e As System.EventArgs) Handles Me.Load
AddHandler SystemEvents.UserPreferenceChanged, AddressOf UserPreferenceChangedHandler
End Sub
b. Copied old position
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = WM_MOVING Then
' Console.WriteLine("Window is moving")
[code]...
d . This is additional code which i tried instead of WndProc
Private Sub RecordingWindow_LocationChanged(sender As System.Object, e As System.EventArgs) Handles MyBase.LocationChanged
_windowLocBeforThemeChanged = Me.Location
End Sub
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Apr 23, 2011
I am working on a way to determine if the lines of a RichTextBox have changed.I currently use this
Dim newhash As Integer = Me.Text.GetHashCode
If newhash <> Me._prevhash Then
Me._prevhash = newhash
Me._lines = MyBase.Lines
[code]....
But this method has a bad issue: The text property takes a while to "load up" plus getting its hash code adds to it. This code runs every time the Lines are needed (it is a property). So this
For i As Integer = 0 To Lines.Count - 1
Dim line As String = Lines(i)
Next
Takes ages to complete, because for every line it checks if the lines have changed.I am trying to evade using MyBase.Lines too much, since that REALLY takes ages to load.
- I can not use the modified property since it is unreliable (set to true if only a text color changes)
- Can't use the RTF since it changes without the text changing (coloring) and the hash code is slow as well.
- Can't use the TextChanged event, since it is sent after the SelectionChanged event (for some reason)
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Dec 12, 2011
Trying to set the cursor position in a RichTextBox. The contents of a document are opened into the RichTextBox and I would like the cursor to move to the very start of the text.
At the moment, I'm using:
Me.tbLowerBody.SelectionStart = 0
Me.tbLowerBody.SelectionLength = 0
However, this seems to provoke my "Would you like to save changes" dialog on closing the RTB even though no actual changes have been made.
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Sep 22, 2010
How to get the line number where the cursor is in a RichTextBox? I'm using VB 2010
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Nov 26, 2010
I Would like to position the cursor in a text box using X,Y coordinates with X being the line number and Y being the column number. Is there any way to determine the line and column numbers of a textbox that is full of text. Using the .selectionstart paramenter only lets you position the cursor a certain distance from the beginning of text but there is no line information that I know of. By the way, I not an expert at VB so bear with me if these questions seem kind of basic.
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Feb 4, 2009
I'm building a web browser using the WebBrowser control in a normal vb form. I would like to add an option where the user can view the source code for the page like in internet explorer.
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Sep 2, 2010
I have this problem:I have a vb.net class (visual studio 2010) :
....
Private nowTime As String
....
[code]....
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Dec 30, 2009
When I right click in a richtextbox, a context menu appears with an option 'get line'. When that is pressed, it should return the line number in which the mouse cursor is in.
I was thinking something like:
Private Sub GetLineToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GetLineToolStripMenuItem.Click
Dim intLine As Integer
[Code]....
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Oct 25, 2009
I have a RichTextBox and I need to find the position of the vertical scroll bar.
Is there any way to do this without Pinvoke? If not, what is a way to do this WITH Pinvoke?
I need to return an integer value.
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