Change Multiple Items Simultaneously In DataGridView?
Feb 7, 2012
I'd like to allow the user to select up to an entire column of cells and type and/or paste a single value that would then change the value of all the selected cells in the DataGridView to the value that was typed or pasted. I understand this is probably two separate answers, but perhaps if there is a way to set the contents of the clipboard with the value typed, I was thinking it may work well to identify both things I want to do.
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Jul 14, 2011
Using Visual Basic in Visual Studio 2008, I have created a Windows form with multiple tabs and questions. Each question has an associated drop-down listbox that the user will eventually click on to enter his or her response. My client has now informed me that she wants to change the standard responses in each response box. There are well over 100 drop-down listboxes, all with the same items, and they all must be changed.
I originally inputted the items using design view. Would someone please tell me if it's possible to edit all of these boxes in the design view simultaneously? When I control + click on more than one box, the Edit Items option that is normally available disappears. Is there a way to do it in code in a manner that would save back into design view?
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Feb 3, 2009
I have not programmed since the late 90's (VB 6.0)Using Visual Basic 2008 Express, I'm creating a simple program but have one question:Is there a quick way to change a value on multiple items? For my program, I need to make a group of text boxes (anywhere from 14 to 546 unique boxes) "Enabled = True" or "Enabled = False" depending on a user selected value.
In a little more detail: The user selects the number of data rows on one tab. On the other tab are 40 rows of text boxes (14 boxes per row). If the user selected 15 rows, every row below 15 should be "Enabled = False".Thus far, I've coded a bunch of if-thens that run each time the user changes the selected rows (a line for each text box that makes it enabled or not). There are then 40 if-thens with lots of code in each.
I am sure there is an easier way to accomplish my goal without using hundreds of lined-up text boxes.
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May 5, 2010
I used different backgroundworkers to instantiate some 'heavy' forms thinking that it will reduce the time to instantiate them if I did them at once but it looks like I am wrong since it is still taking about 43 seconds to load all of them. Am I missing something or do you have a tip on how I can speed up their instantiation?
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Jun 18, 2011
Not wanting to hijack 45minutes thread, I thought I might spawn a thread of my own based on his question.
PlausiblyDamp was kind enough to provide some generic code, which I have modified and attached.
I have made a few alterations mostly around removing random objects, as the game in question (Space Invaders) has a set amount of aliens and set starting positions.
As a start I have limited the UpdatedPostion to horizontal movement as the aliens only go side to side unless they hit an edge.[code]...
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Feb 18, 2010
I am creating a GUI that monitors the entered application and if the application crashes the GUI starts the application back up. Problem is to run this application (WoW Private Server) I need 3 running applications. Is there a way to shell and wait 3 applications all at once. OR if i was to create a separate console application who's only job was to start the three applications at once how would I pass the application variable?
Here is my program thus far: [URL]
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Feb 17, 2011
We are looking to design a security application that does the following on laptops:If the ethernet adapter is used (cable plugged in) disable/block all other network connections (wireless WIFI, mobile broadband (PPP), virtual VPN adapters etc)When ethernet adapter is not being used again, all connections allowed.We have looked in the WMI a lot but there are no good ways of doing this. Only disabling the network connection is not secure enough because most mobile broadband applications try to re-establish the connection. This should be an application that works on all laptop vendors without any user interaction (such as choosing interfaces etc..).
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Dec 14, 2009
I need to play multiple files simultaneously at the moment i am trying to use mciSendString() API it plays the files listed in a listbox. But it is only playing the first one i assume it would play the next one after the first is finished... cbf waiting to see.
Note this was an attempt in C#:
private void PlayButton_Click(object sender, EventArgs e)
{
if (SongsListBox.Items.Count > 0)
{
[Code]....
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Feb 6, 2010
I have been using the My.Computer.Audio.Play method for sounds in my program for a very long time, but now I have reached a point where the program needs to be able to play more than one sound at a time. What is the best (and preferably simplest) way to do this?
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Dec 13, 2010
I want to play multiple sounds simultaneously from My.Resources in Visual Basic 2010. I have tried:My.Computer.Audio.Play(My.Resources.SoundName, AudioPlayMode.Background)
I have also tried using multiple Windows Media Player controls, but that also didn't work.The first sound is cut off when the next sound plays.When searching around the internet I found people suggesting using 'DirectSound', but there are only tutorials for DirectSound in VB 6.0.
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Jun 6, 2012
How to run multiple funcations simultaneously using multithreading concept?
Actually i am making a software which has backend tool as MS ACCESS. it has 15000+ records in database and i need to display that records as my software loads..but it is much time consunable and sometimes it even goes out of time exception
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Nov 6, 2009
I'm writing a program which gets the time and date from forums which only show "x hours ago" on the main thread list.What I do is get a list of threads, open their print version and fetch the info.I'm currently using a single webbrowser, because there's no control array anymore. This makes the proccess very slow.Is there a way to open all the threads' print versions simultaneously?(BTW, I'm using DOM functions like GetElementsByTag, so I'll need to get the page's "Document" object.)
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Apr 16, 2009
I have three listboxes with vertical scroll bars. I'd like it so that when one is scrolled, so are the others. However, I can't seem to find a "scroll" event. I tried this:
vb.net
Public Scrolling As Boolean
Private Sub ListBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ListBox1.MouseDown
If e.Button = MouseButtons.Left Then
[code]....
It works when you click and drag on the listbox area where the items are, but not when you click on the scroll bar!
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Mar 25, 2010
Consider I have a shared function:Public Shared Function CalculateAreaFromRadius(ByVal radius As Double) As Double
[Code]...
If I have two or more threads in the same vb .net app and each of them calls the shared function at the same time with different RADIUS, will they each get their own AREA? I want to know for each call to the function if it is using same local variables or each call creates new instances of local variables?Will the answers to above questions be same If I have multiple (2+) single threaded apps and they all call the function at the same time with different RADIUS value?
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Apr 22, 2009
I've created a two-worksheet template in Excel - the first sheet is for pretty charts, and the other sheet is for the data that drives those charts. I've written a vb.net 2005 app that can dump in all my data on the second worksheet, and the chart worksheet updates perfectly.I would like to do this report several times over in the same workbook. (So the tabs would read 'Person1 - Chart', 'Person1 - Data', 'Person2 - Chart', 'Person2 - Data', etc.)
My solution was to, for every person this report was going to be run for, copy the chart template, and then copy the data template. The problem is that every chart template that is created points to the original data worksheet. How can I set what worksheet each chart worksheet is pointing at?
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May 31, 2011
I have two unrelated databases and I need to pass data back and forth between them. Right now I have created two separate entity models - one for each database - but this is causing issues in my code b/c I have to do a Using nameofcontext / End Using and when I try to then use some of the results from the first section of the code in a second Using nameofcontext / End Using it doesn't like it - b/c I've closed the connection to the first database!
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Jun 9, 2011
I'm making a simple game. I want simultaneously go up and left.
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
' If e.KeyCode = Keys.Z Or e.KeyCode = Keys.Up Then
[CODE]...
Left, right, down and up work. now diagonal.
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Aug 12, 2011
Im Using a datagridview to display items in an invoice. when the user enters the data in, they use a DGVcombobox to select which particular item they want. what i want to know is. can i change the text of the combobox programatically after the items have been filled
Edit The DGV in question has 2 predefined columns one is a comboboxcell and the other is a text box cell im trying to fill it using
[Code]...
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Sep 12, 2009
I know how to do what is in the subject already, but I want to do it a different way than what is stated in the subject. What I want to do is be able to create multiple items with different names and then load the names into a listbox. When I select the item in the listbox with the name, such as Item1, it will put the text from the control named Item1 into a textbox.
I am clueless as to how I could accomplish this. What I am doing is adding Items to a menustrip's dropdown Item, then adding items to the dropdown items. So I would have the item collection such as:
One
Two
Three
So I could choose the item in the listbox with the text "Three" and I could load several properties of the item Three. Such as Three.text, Three.Tag, and Three.Name. And I could also edit these. And then when Three is chosen in the listbox, I could add sub items to it.
So it would look like this in my perspective(Although the code would not work)
Dim tsmBookmarks_SubItem As New ToolStripMenuItem
(Listbox1.selecteditem).DropDownItems.Add(tsmBookmarks_SubItem)
how to convert string to a control name?
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Feb 18, 2011
I have currently changed the color of background Menustrip using this code
[Code]...
How do i change the Hover color of menu items and dropdown menu items to orange including the background color which holds icons in menustrip dropdown.....
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Dec 15, 2011
I have a DGV I am working on, and I have many columns.
For example I have Columns colcase(Combobox), colreportTime(Time)
the combox shows 4 cases {A,B,C,D}
what I need to do is if the user select "C"
the the colreporttime will show the time of this change unless the old value is C
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Jul 10, 2010
In VB.NET 2008 I've two forms 1 & 2 containing two datagridviews connected to two data source 'ACCESS 2007 tables' Now I want to select multiple rows from one datagridview (form1) & transferring these to another empty datagridview (form2) with a button_click.
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Jan 29, 2010
I am using VS2008 and I have a form which has a datagridview. This is for an invoice where I already have the user select the customer from a details view and want to have the items in the datagridview change based on what the customer selected. Then when the item is selected I want to have the price change accordingly.
So far I have the customer selction as well as the item combobox(not limited to cust items yet) appear, but I cannot figure out how to get the join of the 2 items (cust+item as the price varies from cust to cust) to change the price. Question is, is it possible to do this in the same datagridview, or should i try to just break this down some other way?
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Mar 12, 2011
I'm running the following query:
' Show which halls they are eligible for.
Dim dbRooms As New pbu_housingEntities
Dim gender As String = Session("gender").ToString
[Code]....
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May 24, 2011
I have several items, i want to calculate a minimum rectangle in which they can be fit, but items are rotated to some degree, or skewed or both. So how do i get the least rectangle which can contain all ?
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Jul 28, 2011
I have a ListView called lv with three columns. What's the quickest and easiest way to add items in it during runtime? I am using WPF.
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Apr 19, 2010
How would I add multiple items to a dynamic list without having to use the .Add method for each one?[code]...
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Jul 12, 2011
I am able to only move single items from one listbox to another with this code. I tried with both MultiSimple & MultiExtended SelectionMode.
How do I select multiple items and then move them?
Private Sub cmdAdd_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs
[code]......
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Aug 10, 2011
(Visual Basic 2010)I'm trying to add multiple item to a listbox from a text file. The program will show help for computer tasks.
Textfile:
Add new event to calender#Sync calender to phone#Print something from the internet
Code:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
UpdateTopicList()
End Sub
[code]....
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Sep 17, 2010
So, i'd like to ask you! How can i add new listview items to a ListViewItemCollection (or something better), and than add the items in the collection to a ListView. The point of all this is to add listviewitems from a background worker.
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