Making A Selection From An At Runtime Generated Listbox?
Oct 22, 2011Private Sub ListOfCrops_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ListOfCrops.SelectedIndexChanged
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Selection Of Runtime-generated RichTextBoxes In Treeview?
Sep 10, 2009for an application, I generate RichTextBoxes during runtime with the following code. The code generate a new node in Treeview under parent node "Notes".
Dim RichTextBoxCounter As Integer = TreeView_MainForm.Nodes_("NodeNotes").Nodes.Count
Dim NewNote As New RichTextBox
NewNote.Size = New System.Drawing.Size(845, 550)[code].....
Now, I want to show the RichTextBox if the associated child node is selected. I tried the code below, but it does not work.
If TreeView_MainForm.SelectedNode.Text = "Notes" Then
Dim NewNote As New RichTextBoxPrintCtrl
If TreeView_MainForm.SelectedNode.Parent IsNot Nothing Then[code]......
provide the code to display the RichTextBoxes after selecting the node.
Listbox (20 Items) With Multi-selection And Label That Disply The Selection And One Button
Dec 25, 2010I have a listbox (20 Items) with multiselection and label that disply the selection and one button. So I wrote (it works fine)
[code]...
Now when I click on button the label show lets say Item2,Item5,Item10,How do I take off the last ","
somthing like that Item2,Item5,Item10
I used to do: Dim s As String = Trim(Label1.Text)Label1.Text = s.Substring(0, s.Length - 1) but it give me an error converting intiger to string
Exception Is Generated While Adding Owc11.chartspace To Panel At Runtime?
Feb 14, 2011Exception is generated while adding owc11.chartspace to panel at runtime.
code is:
Imports Microsoft.Office.Interop.Owc11
Public chartspace1 As ChartSpace
chartspace1 = New ChartSpace
Me.Panel3.Controls.Add(chartspace1)
Exception :Unable to cast COM object of type 'Microsoft.Office.Interop.Owc11.ChartSpaceClass' to class type 'System.Windows.Forms.Control'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface.
Making A Selection Around A Richtextbox, Vb Express 2010
Apr 16, 2011i want user when clicks a button to show a selection around a richtextbox and not inside it selecting the text... what i have right now is this: richtextbox1.focus() that will indeed focus the richtextbox but the problem is, it only selects its text content.
What i want is something similar to a Yellow or Blue Square showing around the richtextbox i want to "select", so the user will properly notice the richtextbox more easelly.
i tried messing with the vb express rectangle stuff but i cant get it to draw over all objects, its actually always displaying below all objects in the forum
EDIT: ive also tried using a tiff picturebox with a drawed empty rectangle on it, but the dreadish thing when put over other objects like textboxes, it simply just displays the color of the form emitting any other objects in between, setting the background color to transparent under web colors had the same problem...
How To Fire Event When Making Selection Of Editable ComboBox
Jun 15, 2012I have a ComboBox that is databound to an ObservableCollection of strings. The ComboBox is also editable, so you can either enter in your own value or select one from the list. The issue I'm running into is the index of SelectedItem seems to be the index of the last item you selected when you've entered in your own value in the ComboBox, though it's -1 when you have IsTextSearchEnabled set to true. The problem is, if someone entered their own value and then decide to instead select the item on the ComboBox that had been selected before, the index doesn't change so the SelectionChange event doesn't fire. How could I get an event to fire in this situation?
View 1 RepliesWhen Ever There Is A Combo Box It Will Open Another Screen And Making The Selection Is A Breeze?
Jul 18, 2011I have a combo box on few of my vb.net 2010 programs. The end users that use my program have touch screens and they have a hard time making selections on the combo box. I have an Android cell phone and when ever there is a combo box it will open another screen and making the selection is a breeze.
View 1 RepliesForms :: Button Selection At Runtime?
Nov 1, 2009I use Microsoft Visual Basic Express edition 2008 on my Windows XP SP2 and in it, in a Windows Form project, I add a button to my default form and set it's flatstyle to flat and borderwidth to 0. At runtime, when I click that button, I get a black color hollow box on that button at it's center...
View 6 RepliesMaking A Selection Updates The Data Bound Labels On Form
Oct 19, 2011I have a Data Bound ListBox on a 2nd form, making a selection updates the Data Bound Labels on form1. The problem I have is the ListBox is desplaying the ID not the Title, I have chect all obvios places and find nothing.
View 1 RepliesRuntime Variable Field Selection In Code Behind?
Jan 23, 2012I have a list with several fields that is created from dataset from a linqtosql query. At run-time, the user gets to specify what field he/she wants to display from the list. In other languages, I can dynamically do this like:
valueIwant=mylist(i).[fieldnameImInterestedIn]
Where 'fieldnameImInterstedIn is itself a variable. How do I do this in VB.Net?
non-working actual code follows:
Dim patientdata = (From patientvar In pdfdatacontext.tbPatients Where patientvar.PatientID = patientid)
Dim patientlist = patientdata.ToList()
fieldvalue=patientlist(0).(reportrow.userselectedfieldname)
VS 2008 : Display Information From A Text File After Making A ComboBox Selection?
Jun 4, 2010I have a program that needs to display a playlist of songs, for a band performing someplace, from a .txt file. The songs in the file are listed as follows:
All You Need is Love-Beatles
Rock
4.25
[code]....
The first line is the song's title and group name. The second is the songs genre. The third line is the songs length, 4.25 is 4 minutes and 25 seconds.upon clicking a button, I need to display a playlist from this .txt file based on the number of minutes the band has to play, minutes entered into a TextBox, and the songs genre, selected from a ComboBox. The songs cannot repeat and must be random.I have already coded the program to read the .txt file but have not clue where to start with the rest.
Changing The Font Color By Using The Selection In A Radio Box At Runtime
Jul 31, 2009I am trying to convert a value from a radio list box that is populated by an access database. The database loads fine, I have no trouble with that. My issue is that I am trying to take the value of the radio button chosen and turn it into a font color. Therein lies my problem. I see that it cannot be a string, but when I turn it into an object, I get an error. I will note that I am using VS 2008 (Windows Vista x64), and the database is compatible with a 2002 - 2003 Access database. I am using ASP.NET for my programming, however, I am trying to program it in VB. This is my code:
[Code]...
VS 2010 Creating The Effect Of Control Selection At Runtime
May 16, 2010At design-time, when one clicks a control it is selected and this state is depicted with a frame drawn around the control. I would like to know how can I mimic the same effect at runtime; that is, how can I draw a similar frame around a control when the user clicks over it?
View 2 RepliesMaking An Array Of Pictureboxes At Runtime?
May 22, 2010im making an array of pictureboxes at runtime:
Dim picEnemy(9) As PictureBox
Dim enemysprite As Image
enemysprite = Image.FromFile("....gif")
[Code]....
i get the error:Object reference not set to an instance of an object.
now i know the error would be solved if i had:
dim picEnemy as New Picturebox, but i cant since its an array
How To Limit Listbox Selection
Nov 19, 2009Is there any way to limit the listbox selection to just 2 I have done this code
Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.GetSelectedIndices.Length > 3 Then
[code]....
Listbox Use - Allows A Checkbox Selection
Apr 1, 2009I have been given the following piece of code which allows a checkbox selection to be made and an associated piece of text be printed in a textbox.
How would i be able to do exactly the same thing but for a listbox?
Also how would i be able to get something to clear from the listbox when then checkbox is unchecked without getting to complicated?
Random Selection From Listbox?
Apr 27, 2010I have a listbox with five items
I am trying to code a button that will randomly choose one of the items and then display in an output textbox
textbox code so far
txtOutput.Text = "The computer has chosen " &
Making Form Start Location Change At Runtime
Feb 9, 2011I have a program that has a large weather map which is 1920 x 1080 resolution. The start location is (0,0). I want people who use smaller resolutions to be able to see the whole map. I would like to create a button that allows me to shift the form down or right say 10 pixels each time the button is clicked. How would I do this?
View 1 RepliesCalendar Selection Output In Listbox
Jan 16, 2009I've been making a scheduling program using the calendar object.I can manage to select any date with a single click with a message box pop up entering a memo for the date selected. After pressing ok, the memo is displayed in a list box, with date.
1.Unfortunately the date is being displayed twice - perhaps because i used .selectedrange in the handler ? i would like it to be listed only once
2. the memo comes up on a separate line, ideally id like it to be displayed on the same line as the date.i tried ListBox1.Items.Add(whendate, memo) but it cant compile, so ive had to put each line in seperately
3. I would like to mark the sundays and national holidays in red color (the calendar is only set for a year so i dont mind doing them by hand, however the only tool i can find in the Monthcalendar1 properties is MonthlyBoldedDates, and no color assignment [code]
Cannot Display Database Selection In Listbox?
Aug 24, 2009I am doing a lab where you have to connect to the database using the Database Configuration Wizard in Visual Basic (Visual Studio 2008). The database connection is there since the form will display the records.The problem is the user is supposed to be able to click on the combobox arrow to select a stock rating (high, low, etc) and then the listbox will display only the stocks with that rating. I thought this would work but nothing is showing up in the listbox.
' strSql is a SQL statement which selects all the fields from the Team database.
Dim strSql As String = "SELECT * FROM Stocks"
'strPath provides the database type and path of the Team database[code]...
Limiting User Selection In ListBox
Apr 30, 2011This program allows a user to select a workshop and a destination, only one selection should be made. When I test I find I can add multiple of the same.
Private Sub ListBox1_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Validated
If ListBox1.SelectedIndex = -1 Then
Beep()
MessageBox.Show("Select a workshop please.")
End If
[Code] .....
Load Picture Through Listbox Selection?
Mar 3, 2011This is my first time to be here and is a total newbie with Visual Basic 2008. I have background in VBA Excel and would like to try Visual Basic 2008. I would like to start off on a certain project and I am currently in trying to load image (in jpg format) into the picturebox thru listbox selection. I have found this code here and is trying to modify it to suite my needs but is having quite a tough time to set it right. [code]....
View 7 RepliesPopulate A Listbox When A Selection Is Made
Feb 23, 2011I am currently using the NorthWindDataSet from the msdn tutorials.So far, here is what I have to populate one of the listboxes on my form:[code] I make a selection in ListBox2 I would like ListBox3 on my form to be populated with that particular person's Order #'s.
View 2 RepliesPopulate Listbox Without A Default Selection?
Feb 3, 2011Can you populate a Listbox and not have a default item selected?(Usually I see the first item in the list automatically selected at creation).
View 5 RepliesSetting Default Selection For Listbox?
Jun 10, 2009how do i make it say that on form load, the first item in the listbox is selected?
View 3 RepliesStore A Listbox Selection In Appconfig?
Jun 22, 2009I have a list box with a collection of items; Can I save user selection the next time the program opens by using Application Settings tab and property Binding?
View 39 RepliesStoring Information To A Listbox Selection?
Dec 21, 2011I am creating a program with multiple Forms designed to track multiple projects.The first form is designed to setup new projects and obtain previous projects, from there the other forms open to be filled in with information.For new projects the next forms open blank but I then need these later forms to be tied to this project name so that it can be selected from a combobox and the information will be already populated.tieing the information on the later forms to the projects populated in the combobox so that it appears when a specific project is selected.Is this able to be done without creating databases?
As an example, say I create a new project then a new form opens and I add some information to a textbox.I would then like to be able to save the information so that the project name moves to the combobox on the first form (I can handle this) and the information input in to the textbox is tied to the project name so that when the program is reopened and the project name is selected the second form opens with the textbox populated.
VB Random Selection In Listview, Not Listbox
Jul 29, 2011i am working on a program that has a randomize button that can already randomize the selection of a listbox. Now i wanted to make it also randomize the selection of a listview, but i can seem to find out how to do this. Ive tried using the same code, but it said that add isnt part of listview.
Heres the code:
Dim Random As New System.Random
Listbox1.BeginUpdate()
Dim ArrayList As New System.Collections.ArrayList(Listbox1.Items)
[Code]......
Vb2010 Regarding Listbox Items Selection?
Apr 10, 2011ive just registered but ive been reading this forum before.I have a medium problem and an easy problem.
My project adds dates in runtime to a listbox.It can be any date inputed by the user so theres no way to know which date is at which position thats why the listbox index stuff for me is totally useless.Problem 1: if lets say a user types in a date into a textbox "27-03-2001, and press an "OK" button, i want to select that date automatically in the listbox if it exists.the only way ive found so far to programatically select an item is to use the index stuff which as i said is worthless for my situation as the comparison is a string,So, how can i select an item from the listbox using a string to item comparison?
Problem 2: Dates in the listbox are dd-mm-yyyy format so they dont arrange properly, is there anyway i can make the listbox sort the items counting from right to left instead of left to right? because that would solve my problem as it would be like inverting the date itself while sorting.
if you can answear any of these 2 problems please dont hesitate to comment about it, if its possible or not and if it is how i can do it.Both problems are at the same importance for me
VS 2008 Databound Listbox Selection?
Mar 17, 2011I have a question regarding Databound listbox (Item selection)I have not used the listbox much so I am very uncurrent in it's use:What I am wanting to to is connect to a database, select from the database (lastname) then display the list of names in the listbox, also have a datagrid on the same form, so that when I click on a name on the listbox the datagrid moves to that same record.
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