I have never dealt with dynamic control events before. I have a variable number of a controls each created at runtime. However I don't know how to code events for each control as they should do different things. I've looked at WithEvents and AddHandler and know I have to use Sender however not sure how to use /where to put eg. MouseEnter 1 panel when there's several.
View 5 RepliesI am adding a button on the form dynamically, and how to add click events for that but
View 2 RepliesIn my old VB6 programs I use control events like Keydown to activate code. The code is the same for all text controls. However, I am hoping that there is a efficient way of handing this in VB.net. Using VB2010.
Private Sub txtField1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField1.KeyDown
ButtonState2()
End Sub
Private Sub txtField2_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField2.KeyDown
[Code].....
Can we write all the control events in a seperate class file in different layer rather than in code-behind of web-page ?
View 1 RepliesIn a ASP.NET app from a procedure IN a VB code file a dynamic control is called. The first problem may solve the second. In the following line of code I am getting an "end of statement expected" error at the following line.
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I created a control that has picture box control docked within it. This control allows me to "animate" the image by swapping them out by setting the interval to swap them at. I want to use this control kind of like an animated icon within a application, but because the picture box is docked, the control I created won't respond to the events, MouseHover specifically. [Code]
View 2 RepliesIn our organization, we currently have 6 events that occur every year. These events occur on the following dates:
Dec 11 2011
Nov 04 2011
Nov 08 2011
Mar 15 2011
Jul 07 2011
Sep 02 2011
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How to define handler events for dynamic controls.
View 3 RepliesI had been searching as to how I could create an array of controls dynamically, and after some searching found some helpful code as shown below [code]This way in the above code "structureComboBoxes" will have an array of comboBoxes (VB6.0 was way easy to get this crap done!! I guess its cleaner here)Now my next problem is How do i code for events of each of these combo boxes?
View 6 RepliesI have a tools strip menu item with dropdown items that are created dynamically.
For Each file In files
Dim newMenu As New ToolStripMenuItem(FileNameOnly(file))
tsmMachType.DropDownItems.Add(newMenu)
Next
So how would I go about setting up or creating events for these items? I need to have a check event and click event for each of the items.
I am adding items to a context menu strip from a list of items in a database when my form loads. This all works fine until I come across the issue of 'How do I react to the user clicking on one of these menu items?'
View 1 RepliesI have to create buttons at rum time based on database records and implement their events.
View 5 RepliesI am looking how to set events to a webrowser which is being created by the following:
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Anyone can suggest what's wrong to the code below as the User Control objects ONLY appear in the first tab and NOT in the balance tabs ?
1) User Control name - usRFQDetail
2) Tab Control name - tcRFQDetail
what's wrong to the code below as the User Control objects ONLY appear in the first tab and NOT in the balance tabs ?
1) User Control name - usRFQDetail
2) Tab Control name - tcRFQDetail
Dim tcPage As New TabPage
[code].....
I am really new at this and need to find out how to code multiple events so that I don't have to type the same thing out many times as you can see I have done below. I am sure there is a way to do it but I am lost. It is for a Mastermind game and I have created 8 buttons from which you can drag the text number on the button into a text box. there are 20 text boxes. 5 x rows of 4 textboxes.I have started to try to do it for button 1 but I am confused. I have tried to copy from other people's code but it is just confusing me more. Can someone please put me on the right track. [code]...
View 3 RepliesFor example i got a class and its got its own properties and i am passing the name of the class and the name of the property to be called to a function Say for example exp is the variable which i am passing which contains a value = "ClassA,Property1"
Function Property2BCalled(byval exp as String)
dim classname = split(exp,",")(0)
dim propertyname=split(exp,",")(1)
dim value= classname.propertyname
End Function
I wanna do something like that,given above.
i'm building a basic server program that I want to recieve commands and execute them sent from a client program and I'm using my home network to test it out. I've got no problem with the communication between the client and server programs and have used a simple Send Text function to communicate to the server program which simply brings up whatever text was sent in a message box.
I've decided that constantly updating the program and transferring the new EXE file just doesnt work as I have to keep starting and stopping the server program to do that just to update the list of commands it recieves. So say for example I've got a button on my client program that tells the server to open the cd-rom draw on that computer, it sends this in the form of simple text openCDdraw" and when the server recieves this, it pops open the cd draw and so on and so on... but I thought a better way of doing this may be to say have the commands listed in a SQL database and when the server recieves a message it searches through the database to find the correct command and executes the code associated with the command.
Now I can retrieve the information fine in to a string variable ("Dim a as string, a = dr.getvalue(3)") but where do I go for there? This is the problem see. My apologies if I've gone a bit long winded on this one but thought it necessary to explain what I'm doing. I've heard of dynamic code execution but when I tried a project I found on the internet it had been coded in C# and I don't know any C nor do I want to as I'm a VB veteran and have updated myself with the way of .NET now so am not going to start all over again with learning C. Does anyone know of an easier way of doing this? Static code is so easy to do because it is typed straight into the coding sections and I had already thought about creating loads of subs/functions to execute each command but again that involves updating the EXE file every time so there must be a better and easier way of doing it.
Can I also just point out that this little project i'm working on is not for a TROJAN or whatever that old NETBUS program used to be called, it is simply so I know how to do it and can use it for other things that I'm working on and through. Also I'd just like to know how to retrieve and execute code from a database or text file.
If I would like to fill a listbox with the Events of the current Control on a form, how do I then do that I work with Visual Basic in VS Studio.
View 3 RepliesIs it ok for me to have this event - firing on TextChanged for my BillingSame textbox
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I have some VB6 code that instantiates a class which handles events that are being raised from a VB.NET component. The VB6 is pretty straightforward:private m_eventHandler as new Collection
public sub InitSomething()
dim handler as EventHandler
set handler = new EventHandler
m_eventHandler.Add handler
m_engine.Start
[Code]...
My problem is that when I debug the VB6 program, the first time InitSomething gets called, the event will not be handled (the VB6 event handler is never entered). Subsequent calls to InitSomething does work.
Everything works as I would have expected when I run the program outside the debugger. At this point, I'm not even sure if this is something I should be worried about.It may or may not be relevant but the VB.NET was converted from a VB6 using the Visual Studio code conversion tool (and subsequently manually cleaned up).
I use the following code to fill the Table1 dictionary with the information found within the LINQ query.[code]....
View 2 RepliesI have code that reads file paths froma text file into my application for an mru list on my apps main menu. The menuitems are added programatically from each line of the text file. How can i attach events to these menu items?
View 1 RepliesI declared a browser in my VB.NET project (Dim browse as new WebBrowser). How am I supposed to get to the events (browse_NewWindow) of the declared thing?Oh yeah, my code for my browser is CType(TabControl1.SelectedTab.WebBrowser(1))
View 4 RepliesI just opened up an Asp.NET project solution for some maintenance. I usually use C# but this project is in VB. When clicking on a form's button and looking at the properties view, I see no way to view the events for that button. Usually the lightning bolt button would be present in the properties view and clicking it would show all events for the control. From there you could see the event handlers or create an event handler by double clicking. Why don't I see that in this project. Is it an IDE setting or a VB project thing?
P.S. I thought I was in VS 2005 but it's 2003. 2003 usually shows me the lightning bolt though in my c# projects.
I am trying to make key shortcuts (e.g.: control + c = copy) in my program, but it seems to work in everything BUT the webbrowser control. I have keypreview set to TRUE, and have the code "for each control.... addhandler....form1.keydown" (you get the point).
View 3 RepliesI am trying to make key shortcuts (e.g.: control + c = copy) in my program, but it seems to work in everything BUT the webbrowser control. I have keypreview set to TRUE, and have the code "for each control.... addhandler....form1.keydown" (you get the point).
View 4 RepliesI'm using VS2008, vb.net, and winforms. I've got 3 comboboxes on the same form who are all bound to the same data. If an item is added in one, I want the change reflected in the other two. I'm trying to create one sub to handle the adding of an item for all three combos. I found that the "sender" object appears to contain the control name. The Sub I created is not working quite right because after the item is added, the combo list display repeats itself. So instead of "Item1, Item2, Item3" after adding "Item3", I get "Item1", "Item2", "Item1", "Item2", "Item3". This coding works fine if I were to copy it to the Key_Down event for each combo and reference it directly (for example, use cboSpecialty1.Items.[code]...
View 4 RepliesI'd like to temporarily disable events for a given control. For example, the SelectionChanged event on a combobox might be used to update a display every time the user changes the combobox... but while I'm filling the combobox with values, I don't want the SelectionChanged event to be firing over and over... I need to disable events while the combobox is being populated. How do I do this?
View 12 RepliesI have created control arrays in run time with following [code]...
But I don't know how I can have access to events now (especially textchanged)
For example I want when I write number in txtfrom (i+1) write it automatically in txtTo(i)