Developing A Program That Populates A Rich Text Box And From A Click Event On A Listbox?
Oct 6, 2009
I am developing a program that populates a rich text box and from a click event on a listbox. The data that is being loaded into the rich text box is located in a richtextformat file located on the hard drive. I noticed that when I entered a URL into one of the richtextformat files that it appeared that I was able to click on the text as if it were a link. So I wondered if it was possiable to click on that URL and open a web browser from the loaded richtextformat file? I have read several articles in regards to opening hyperlinks in rich text boxes which can open a web browser with a given URL.
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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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Apr 15, 2012
I'm a noob to the .net world and I was wondering how I would go about creating a rich text box by triggering a click event button. I am trying to shrink the data currently in my form. One way of doing this would be to take away the two rich text boxes I have drag/dropped into the form and just adding a button. When the button is clicked, a rich text box will pop up.
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Nov 1, 2010
How to display text in a rich text box when an item is selected in a listbox. Here's a snippet of my
Private Sub radGunsNRoses_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles radGunsNRoses.Click
'Declares songs into variables
Dim strSong1 As String = "1. Sweet Child O' Mine"
Dim strSong2 As String = "2. Novemeber Rain"
Dim strSong3 As Integer = "3. Welcome to the Jungle"
'Band Picture
[Code] .....
What I really want is that when radGunsNRoses is checked, the listbox displays the songs and when one is clicked, it shows the song's lyrics in the ritfSongs. Same thing goes for radACDC but the songs are different and the lyrics.
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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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Apr 11, 2009
in terms of code how would i go about getting a single word listed in a listbox to a appear in a rich text box on a single button click?
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Oct 24, 2009
I'm trying to write some code which parses data and then populates a listbox. I'm using the IPWorks IPPort component which basically does the reading of port 30003. The ipport1_OnDataIn event is where all the action is. I parse the data, which works great.. however when I try and do something simple such as add text to a listbox, I get the dreaded error "Cross-thread operation not valid: Control 'lstListBox1' accessed from a thread other than the thread it was created on".I've googled the error and tried copy and pasting some workarounds but nothing seems to fix the issue.
If anyone can offer help, it would be greatly appreciated. If you could possibly show the code already implemented into mine, it would be even better so I can see how it works. It would make more sense to me. My code is below. The part i'm trying to get working is the lstlistbox1.items.add("Test") in Case "2". This is to just get it working.. I'll be adding listbox items in the other cases as well, and they'll be parsed values instead of "Test". This is just to simplify things at the moment.
[Code]...
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Aug 10, 2009
I have a listbox with items, and when I press a button I would like to go to the next item.I'm having a horrible brain fart and have been for quite some time.
for x = 0 to listbox1.items.count - 1
label1.text = listbox1.items.item(x)
x += 1
next
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Jan 23, 2010
[code]....
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Jun 30, 2009
Can i Know how to catch between these 2 event, Leave and Click?
I have one checking in a textbox Leave event. I will go check whether this ID is already exist in DB or not. If exist, I will prompt MSG box to user.
When I click on Close button while focus is on textbox, this textbox Leave Event will trigger first before Button Click event.
So, the form remains open without trigger Button Click event.
how to prevent this textbox leave event or how can i catch/control this situation?
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May 16, 2012
Say I have the following data template:
<DataTemplate x:Key="ItemTemplate">
<StackPanel>
<Grid Height="95" Width="446" HorizontalAlignment="Left" ShowGridLines="false"
[code]......
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Apr 10, 2010
I need help on how to write the code for replacing an Item in a listbox by double click event in vb.net.I only know about using this code to add [code]But I need the to know how to write the code for replacing an item when the item is double click.
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Jul 18, 2009
I'm trying to put a scroll in the final message box that populates when you run the program but I can't seem to get around it.
Option Explicit On
#Region "Description"
#End Region
Public Class Week3
[code]....
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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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Dec 1, 2010
I have a windows app in vb.net , i am trying to read a xml file from my server(url...).I am able to read abc.xml . now i have a requirement to show abc.xml in a rich text box in vb.net and then i have to show node and its value in combobox. I am able to do this with a directory(suppose that file is in C:/abc.xml)[code]...
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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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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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Apr 20, 2009
Im designing a program that will read from various text files (preferably RTF files) and then put them into the RTF box in the program when a button is clicked.
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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Mar 26, 2012
the data that its inserted on the listbox comes from a access db i have this code but this only works when theres only 1 line on the listbox this code works fine when i make a search in the db by the code of family(because the family code its a primary key there can only be 1 family width that familycode) so when i get the family surname i clic on it and i get a form telling me info about the family. but if i try to search for the family surname there can be several family whit that surname. when i search the family surname the listbox will show me all the family's that have the surname now what i want its when i search a surname for eg"Smith" the program will display all the familys that have that surname and i want a code that can give me the number of the family i clicked.[code]
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Jul 12, 2009
I have a 'DataGrid' usercontrol on my simple little form and I press a button that opens a text file and populates the DataGrid like so,
A B C
1 2 3
3 4 4
3 1 3
Where A, B, and C are my column headers.
I also have a 'ListBox' on the form. What I would like to do is, allow the user to select one, two, or three rows (or all) in the datagrid, and press a button that will move the data from selected rows into my listbox (each row its own string in the list box).
I can populate the datagrib easy enough, but don't know how to access the cell data individually?
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Mar 6, 2010
I'm attempting to convert VB 5.0 source code to VB 2008. The converted code will then be slightly altered to facilitate its incorporation into a larger project that I'm developing in VB 2008. After using the conversion wizard (which is actually written for VB 6.0), I have 49 unresolved issues -- less than I expected. Much has changed since the days of my prowess as a programmer (Fortran in the 70's), so working my way through even as few as 49 issues will be a challenge, and will (no doubt) take me a while.
The UI for the VB 5.0 code I'm converting is a "virtual remote," with control buttons that (when clicked) trigger communication to a USB-connected device. With assistance, I've been able to develop my own "virtual remote," contained within my VB 2008 project. Eventually, I will "substitute" mine for the original. For now, though, I'm wanting to use MY "virtual remote" to trigger the original.
I have the executable for the VB 5.0 program, and can run it simultaneously with my "under-development" VB 2008 code. Problem is: I don't know how to cause a "click" on MY virtual remote to trigger a click on the original virtual remote (which is being "monitored" by the other program).
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Sep 24, 2009
I'm looking for some advice for an application I currently developing. I'll try to keep this as brief as possible so if additional info is need just let me know.I'm developing an Winforms based event tracking system using VB.Net (VS 2008 Pro). The application collects data via serial bar code scanners and stores this data within a MS SQL Express db located on the same Windows XP Pro workstation that the application is installed on. When the application receives the formatted string of data it checks the db table and sends a reply back to the device indicating whether the data is a duplicate. I have written a PortManager class to handle the serial based devices and this functionality is working well.
I have now been asked to incorporate a new type of collection device into the system. The new device is running embedded Linux and uses TCPIP (POE) rather than serial communication. The device manufacture has assured me he can provide a string from the devices integrated scanner in the same format as my serial based devices.
If possible, I would like to utilize the current application and just add the ability to use the TCPIP devices to it. I was thinking it might be possible to just add a new class (similar to my Port Manager class) to handle the TCPIP based devices.I'm really at a loss as to the best way to approach this. I'm just not that familiar with collecting data from a Winforms application using a TCPIP based device.
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Mar 27, 2009
Is there a nice simple way I can validate that text box using an If statement to make sure it follows the rule [#][#]:[#][#] (The #'s are single numbers) and not allow anything but a ':' to separate the pairs?
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Nov 24, 2009
How can I make this program that when I click on an item from Grupuri listbox (analiza, escl, esa, media, intrari), to open in the fisierele de transmis filelistbox and also in fisiere receptionate filelistbox the coresponding folders of rec and trs.
For instance: If I click Analiza from grupuri, in fisiere de transmis filelistbox will open/show the content of d: rsanaliza folder and in fisiere receptionate filelistbox will open/show the content of d: ecanaliza folder.
If I click Media from grupuri, fisiere de transmis filelistbox will open/show the content of d: rsmedia folder and in fisiere receptionate filelistbox will open/show the content of d:
ecmedia folder.
Until now I have the following
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
FileListBox1.Path = "D:TrsMedia" ' to show me the content of Media at the program start'
[CODE]........................
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Feb 9, 2012
I'm creating <div>'s and appending them to a literal's text property. I have added a <a> element to the text so that the user can click on a specific element. How can I tie that to a function to handle the event in the codebehind (vb.net) ?
Example of my Literal.Text ...
For Each row As DataRow In oDataTable.Rows
MyLiteral.Text &= "<div style='font-size: 8.25px; text-transform:uppercase; padding:3px; background: #FF8C00; border: 1px solid #000; margin: 0 5px 0 5px; display:inline-block; float: left;'>" _
& row.Item("LastName") & " | <a href='#?"& row.Item("ID") & "' style='color: #000;' >X</a></div>"
Next
So the above code I want to somehow allow the user to click the X link and then it would remove that person.
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Apr 26, 2012
I have to insert text box at button.click event. for this I've been using this code implement it, in ASPX.VB file. below code refecting attached screen shot, which displaying the textbox beside to the delete button. Issue: Example: If we insert any simple text box in ASPX page, then we can take that textbox id and we can play with that in aspx.vb file . in the same way I would like to play with the below code by having the textbox Id. How? How I need to take this text boxId(id = ""txtExperimentalStressdays"") and save the user entered data into database.
[Code]...
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Apr 5, 2011
I have textbox and button1 on my asp.net webform ...I want when i click button1 then the text on the textbox will remain the same as it is ... it will not disappear .... on button click event
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Nov 20, 2009
[code]using this program i want to devlope a program flow graph.pls help me its so urgentand after that can i calculate the no. of independent paths of this program.
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Apr 25, 2012
im trying to make a program in which if the textbox text and the listbox text are the same order, which they are in the picture, a bluie fonted text saying well done appears. However only the red text appears which is only meant to come when the order of the text in both listbox and textbox isnt the same.
Here is the code that i used for this:
listarrays = name of listbox
textbox1 = name of textbox
l is the name of the label for correct answer(blue font)label3 is name of label with red font which should only appear for wrong answer
Dim text As String = Me.TextBox1.Text
For Each item As Object In listarrays.Items
If item.ToString = Me.TextBox1.Text Then
[code].....
use another textbox instead of the listbox but thats just making itmuch harder for me as I already made the full code working with the listbox. My lecturer told me i need to convert both in string so both textbox and listbox are compatible and i did so (see code above) but the correct label doesn't show?
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Jul 31, 2010
I've read thru Iceplug's tutorial on control arrays and got it working. I tried to add a new event by basically copying his click event code and calling it a doubleclick event. I used the proper addhandler and assigned the correct name to my sub. I have the click event changing the background color to blue and the doubleclick event changing the background color to green. The background color does not change to green. Why?
Heres the tutorial with my new code encased in asterisks ...
Code:
Imports System
Imports System.Windows.Forms
Public Class form1
[CODE]...
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