I have an array of picture boxes as so:
Dim pieces(500) As PictureBox
pieces(1) = New PictureBox
With pieces(1)
[Code].....
The program does not crash or anything, but the picturebox is no where to be seen on the form. How to I make this work correctly?
And is 'Control Array' the correct term for this? or something else?
I need to dynamically create some sort of 'table' on my form. It should look like:
PIC1 INTEGER1 TIME1
PIC2 INTEGER2 TIME2
PIC3 INTEGER3 TIME3
On top of that it should look like a table and have gridlines between the 'cells' containing the picture/data, which makes it even more difficult for me. Before, control arrays were quite simple in VB6, but I've been searching for 1,5 hours now and I can't figure out how to do this in VB.NET 2010. Any idea how to tackle this the most efficiently?
How can I make a control array? Or the equivalent.
I am used to Visual Basic 6 which presents the option of whether to create a control array when I copy and paste and control.
Recently I have learned visual basic 2008 express edition and developed programs for data crunching and analysis. The VB 2008 express edition has microsoft visual studio 2008 v. 9.0.30729.1 SP and .NET Framework version 3.5 SP1. Now I want to create x-Y (date-Y value) graphs using the crunched data stored in an array list simulating a data base access. I download and installed the "Microsoft Chart Control for .NET Framework " and try to learn to use it within the VB 2008 express edition using the tutorial. It seems that the chart control did not get installed?
1. Do I need at VB 2008 professional to allow using the chart control?
2. Why after installing chart control, there is no change on the items under the NET components within the Toolbox>ChooseItem>.
3. How do I get to use the chart control under VB 2008 express edition.
4. Any code available to generate versatile graphics without using the chart control? Because the chart control has tons of classes already it seems the best is to just use the existing and downloadable chart control?
I am upgrading user control from vb6 to vb.net.In the vb6 application I am loading 3000 labels using a label control array.In vb.net I am doing same but it's taking too much time to load.In vb6 it's taking 1-2 seconds, but in vb.net it's taking 30-40 seconds for same work. Why does it take too much time in vb.net for same work?Code is given below, here Led is the label control array.
For l = 1 To 3000
Led.Load(ledCounter)
ColLed.Add(Led(ledCounter))
[code]....
The situation is like this, says:I have textbox1 to textbox20 to show real-time reading, then textbox21 to textbox40 for other purpose. So textbox1-20 can be manage in group through: For index As Integer = 1 To 20 Form1.Controls("Textbox" & index).BackColor = SystemColors.Window Next The problem is, after some time i feel i like to change the order or add/delete few textbox, then i need to change the control name one by one by entering the name by hands(says if i add a text box then its name will be textbox41, then then For loop wont work, Or I deicided to delete the textbox15, forloop wont work either, then i need to rename them manually.)
Question: If there a ways that create a control array in VB 2008 express edition? which can set the name of Textbox1-20 to ButtonGroup then refer to them by says Buttongroup(1) for textbox1? (which means set a group of control in one name)
I working on a VB.NET project to manipulate a VB6 form using COM Interop. Some of the controls on my VB6 form are indexed and some not, so calling ctl.Index fails on those that have no index. Is there a way to work out if a control is indexed?
View 1 RepliesI populated a form with several progress bars and added a function to handle a click event via AddHandler. The event fires and I have been able to do things with the control using the passed object 'sender', but I can't for the life of me determine what the index of the control is in the array.
Why is that important to me? Because I want to click the control, have a container of textboxes become visible, and populate them with data from the reference in my database based on what control was clicked, and update that data as needed. Making the container of textboxes visible, and even moving it based on the location of the clicked control in the array are all done and working fine. I just can't seem to get the index of the control.
I need to know what entry (progress bar in this case) was clicked. In the function, I can even do things with a select progress bar using something like pb(x).value = some integer, but I'm trying to find out what 'X" is when the click event fires.
Here are some code snippets...
'Populate page 0 of tab control with progress bars
'TimerCount(int) = number of timer instances active in the database
For x = 0 To TimerCount
[code]....
EDIT: I figured out a work around using the 'name' property, but I would still like to know if what I asked about an index is possible.
I have an application with as many as 625 Textboxes in a runtime generated control array.I add textboxes one at a time in a subroutine.The application ran with no problems until the parameters required more than 256 textboxes at which point it slowed drastically as textboxes were added. At circa 400 Textboxes it died with an out-of-memory condiiton.
The system has 8GB & a 64Bit version of Windows 7.It looks like the tooltips are eating up memory, causing excessive use of virtual memory from Hard Disk & finally causing out-of-memory.I am now running the application with a label which flashes when the mouse hovers. This uses the Handler for MouseHover.Is it possible to get a single Tooltip to function for all the Controls in an Array? I would prefer this to using the Event Handler.
Here's my situation: I have a control with motion graphics (for the sake of simplicity, a 'video player' control) in my project. Think of a PictureBox with constantly-changing images. In front of this will sit a second control (such as a second PictureBox of the same dimensions). The topmost PictureBox will be drawn to in its Paint event.
I need to draw very few elements, and the bottom control is updated much more frequently than I need for this drawing. So these elements are drawn to the topmost control. Think of a news broadcast, where they have live video in the background, with a news channel logo, news ticker, and sometimes gradient visible in front.
I'm trying to create that 'foreground' control, and the closest I believe I have gotten so far is the following:
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Drawing.Drawing2D
[CODE]...
The 'Opacity' property in the code above is a sort of "scaling factor." The image drawn to the top control may, in different parts of the image, have any alpha value from full transparent to a full 255. This 'Opacity' property is applied to the entire image being drawn, scaling the alpha values of each pixel.
See the following pictures for description:
[URL]
[URL]
[URL]
I want to set control position relative to other control so when i make one control hide then other control move up like this.
View 1 RepliesI have a modified button control with a string array in it. I am having trouble sending the string array to the form with the modified button on it. Anyone know what i can do? The form uses a arrayList to hold the buttons since they are made at runtime.
View 4 RepliesWhich control should I use to create menus in vs.net 2008?
View 1 RepliesIs this possible? I am trying to create my own "X" and "minimize" buttons on my form -- the only way that I can currently think to do it is by making my form have no border, and creating a 'fake' menu bar using labels and buttons for minimizing and maximizing. The goal here is to be able to have custom icons for maximize, close, etc that may not match the Windows default scheme.
View 1 Replieswant to create a custom control of the button such as the button will be a bit enlarged and with a different colour.A custom control is a class that either inherits the Control class directly or some other control.So Iadded class named class1.vb and added this line:Inherits System.Windows.Forms.Button
View 6 Repliesthis is my code in vb.net behind where i am creating the radiobutton -
TD = New HtmlTableCell
Dim rdb As New RadioButton()
rdb.ID = "rdb_ads_" & DR("ID")
TD.Controls.Add(rdb)
TR.Cells.Add(TD)
It displays the radiobutton, but doesnt select single. i can select all at one time. how do i make it to select only 1 at a time.
Basically, I have a view (can be converted into a store procedure) with two tables NODE and CONTACT. NODE is the parent table (NodeID) with the foreign key field in CONTACT (NodeID). The query works fine. I would like the treeview to look like this
[Code]...
I'm coding an application that will work with many arrays of data. To make the code easier I want to make a user control (called Multiselect) that will include a textbox and a treeview. The textbox will be alway visible and treeview will appear when needed.The user will put a string in the textbox and the MultiSelect will search all of the stored data in a array that match the searched string. When done, the TreeView will appear and show the found items. User will have an opportunity to choose the right items through checkboxes.
What I can't do is the TreeView. I want it to act like the autocomplete in Visual Studio editor - for example you are in a class and type "me." and Visual Studio offers you all methods possible in a window. This windows doesnt get focus, but if on the top of the main form so the found items are visible over the text.
I am trying to make a new label be created everytime the user clicks a button. But at the moment when the user presses the button It only creates one, if the users clicks the button again. Nothing happens.
This is my current code I use:
[Code]...
I know that the label is not being created on top of each other because the location values changes everytime the user clicks the button.
I want to create a control that drops onto that tray area below the form designer. Such as how a FileSaveDialog or an ErrorProvider would do. A class that's available in the toolbox and the properties are available visually in the designer, instead of declaring it in the form's text code. What do I have to set to get that behavior?
View 4 Replieshow I would change the look of my tabs in my tab control. For instance the default is a rectangle.. while in the VS2008 IDE the tabs have the left corner slanted.
View 8 Repliesmy project is about creating stock control system to a bookstore which you can get details of books available,slow moving books..etc i just want to know about creating forms for my project what kind of forms you needed for ex: add,edit,delete btns.
View 4 RepliesI simply want when someone hovers his mouse over a checkbox a "tip balloon" to appear describing what the control does?Using VB.NET with Visual Studio 2010.
View 2 RepliesI am currently trying to create a generic navigation control with a similar style to the outlook navigation bar. I have figured out how I would be able to dynamically create the bottom part where you select the menu option, but I'm struggling to figure out how I would be able to create the top part, which can contain any user control that the developer would want.So basically what I'm trying to figure out is, is there a way to allow for a developer to add controls to a specific area of your user control?
If there is a way of achieving that then if anyone knows how to do this;In ASP.Net you have the login controls and with one of them, you are able to have different views depending on whether the user who is viewing the web page is logged in or not. Is there a way of achieving this in VB.Net for a user control that could be set up so that I could have the developer able to switch the view in the designer to show them the view for when a specific navigation option has been selected.
How dow I create a user control for use in a webpage using VB.NET (not ASP.NET)?
How do I use that control in a webpage?
Can my control cause an event in the webpage and how? Ie. my user control has a button, and I want a Javsascript script to run when i click the button
I am creating a Webbrowser Control at RunTime:
[Code]...
For some reason the Webbrowser document complete sub will not work. I even tried Public wb as New webbrowser. I will be disposing on the WB many times while the app is running. I need to be able to recreate it so that it continues to work with the WB document complete sub to trigger events...
[Code]...
I'm trying to create a windows user control project that has a textbox placed on it.I want the textbox to fill the user control window.I've built the control and added it to another project, but it isn't behaving the way I want it too.When I drag and drop the control from the toolbox onto a windows form and try to resize it, because the textbox.multiline property has been set to True, the Textbox resizes horizontaly and not vertically (just like normal textboxes do) however the underlying user control window resizes which is undisireable. How can I get the user control window to stop doing this.
View 2 Repliesi know a way to play mp3 files, which is to go toolbox and add the msdx.ocx file. however is there anyway i could dynamically create an object that plays media files (other than .wavs)
View 15 RepliesI have followed the directions from this web site and the control works on a new form. But I have now written my own User Control. It compiles, I have changed Active Config within the Solution Properties to Release | Any CPU and built the Solution. But I can not find the .dll within the .NET framework Components after selecting Choose Toolbox Items from the Tools menu.
View 2 RepliesI'm creating a search control where searches can be compounded. So, for instance, I could create a search for Orders where OrderID = 1232 or OrderID = 2343 and OrderID <> 23435
So I have a button that users can click to compound. Obviously its a complicated problem to do well, but in any case, on my path to trying to find the best way to do it, I wanted to create a variable that could be either '=' or '<>' depending on the value of some other variable set elsewhere.Is there a way to do that? Or do I have to switch to Expressions?