I'm having an issue with rasing an event. In my application I have a form and within that form I create an instance of a class (clsUsage). Within clsUsage I create an instance of clsUser which does several checks form permissions and other things. What I want is for clsUser to send status updates to clsUsage. ClsUser will be a dll but for now I've got it as a separate project in my solution. The RaiseEvent in clsUser seems to execute but the proc in clsUser that handles the event does not execute. I'm wondering if this is threading issue.
I have 2 project in my Solution. Lets say Proj A and Proj B.Proj A is having my custom event. and same Proj is Raising that event using RaiseEvent Function of Vb.net And Proj B is having reference of Proj A. but my custom event cant raise. Could any one can explain me how can I do that.?
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I am calling handleSwipeCardRequest function first and then Raising its event.
Protected Overloads Overrides Sub OnInit(ByVal e As EventArgs) MyBase.OnInit(e) Dim login As Login = TryCast(Control, Login)
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I get errors on line 7, 8 and 9 stating that I should use RaiseEvent to obviously raise an event. I am stuck with this after searching google but I can find no real explanation of this in terms of the login control
I have client/server app.I have a class for the tcpclient and a class for the tcplistenerIn my tcpclient class I have a system.timers.timerThe timer elapsed event fires a public event(in the tcpclient class) which the tcplistener class handles.During debugging I see the timer firing its elapsed event and calling raiseevent on the public method, yet the event is never fired in my tcplistener class.
I have a situation where I want to run the code in the Tick event ONLY ONCE not on the interval i have the timer set too.So I figured I would just do thisRaiseEvent MasterTimer.TickBut that gies an error saying mastertimer is not part of the class.Why won't that work?How do I call the Tick event manually without Start() Stop() the timer?
I'm working with RaiseEvent and have a question. Can an event in a class be raised from another class, or only from within the class itself? How does RaiseEvent differ from calling a Sub, other than the syntax of having an event and using "handles event1"?
I am using RaiseEvent in a thread and I pass a value to it and try to set a control's text to the value. Except I get a cross-thread error which is expected. I could invoke the control, but I don't want to have to do that.
My question is, is there a way to invoke/delegate the RaiseEvent itself so it will work on the ui thread without doing anything else?
I have an app which has been working fine for about 2 months. Yesterday, I carried out a maintenance session which was mainly simple bug fixing and moving my code into regions to help navigating through it. Along the way, 2 things have started happening which has totally broken my app.
MSDN states that Application.Exit does not cause the Form.Closed or Form.Closing events to fire.[URL]..However, my Form.Closing event is firing immediately after Application.Exit which is in a button click handler on the form. The code is like this:
As the subject says, I was wondering what's the difference between the InvokeMember("click") and RaiseEvent("click"). Also I see around example of InvokeMember("onclick"). What's the difference with just "click"?
If _oCurrentCall.CustomData.Length > 0 AndAlso UsageType = UsageTypeEnum.Vanlig Then RaiseEvent NewIncomingCallWithCustomData(_oCurrentCall) ElseIf UsageType = UsageTypeEnum.Sentralbord Then RaiseEvent NewIncomingCall(_oCurrentCall, Queues) End If
Without debugging the events are raised just fine and working.However, when debugging and trying to change execution step like dragging the execution step to the raiseevent in the other condition block, the event doesn't fire.
The problem seems to be that the codes below are events and cannot be called directly. I want to know how I can properly use the RaiseEvent statement while still keeping these where they belong, smack in the middle of the rest of my huge code:
I am having issues with a user created event being detected by the event handler. This program is in VB.net, defined in an OO way, and there are several other classes that implement the same interface and their class instances all detect the appropriate Event, except for one.
The following code is the base class:
Public Class CommandSpeedTest Implements testInterface Private SpeedTest As New ArrayList() Public Event testComplete(ByVal test As IEnumerable) Implements
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This exact structure is being applied to three other classes (all of which are instanced using WithEvents in class gui) and being cuaght correctly.
Single stepping through code just executes the RaiseEvent line and goes to the next. It should jump to the event handler and execute the code there.
I have a class in VB.NET that has a method (called CurrentValue) that returns a number. There is also an event that the class raises to indicate the number has changed. In the event handler on my form, I update a textbox using the exposed method.[code]When I run this I get a "Debugger.Runtime.CrossThreadMessagingException" error. What could be doing this? I am instantiating MyClass in the same form that contains the textbox.I can also set properties of the MyClass object without any trouble.
I should mention I am developing this in SharpDevelop, so if it's a bug with this software then I'll take this up with them.
So I am having issues with trying to get a right-mouse click to work. I have a grid of 30 buttons and I need to right-click to enable a button and left-click disable. I have surfed all over the internet trying to find the answer and the closest I have come to it is it detecting a left-click, but never right.
Sub Button1Click(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button1.Click DataGridView1.CurrentCell = datagridview1.Rows(0).Cells(0)
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As you can understand, I am having a lot of frustration with this. It just seems that I can't get it to work. I've scoured the internet looking for a solution without avail.
I'm trying to compress a file in .NET, but having some trouble. The zip file is created, but it's only 1KB and no files are within the zip file. Basically, it's not working for some reason and I'm not sure why.
Public Sub CompressFile(ByVal fileName As String) Dim strOutput As Stream = File.Create("zippedFile.zip") Try Using (strOutput) Dim strInput As Stream = File.OpenRead(fileName) Using (strInput) [Code] .....
I have a folder named "Root" in my d: drive.The "Root" folder contains two folders namely "Child1" and "Child2".The "Child1" again contains a folder named "Sub-Child1".The "Child2" again contains a folder named "Sub-Child1".I want to do a code in such a way that i can show the folder names in a Treeview.
how to operate onthe excel in vb.net......such as Create an Excel 2003 file in VB.NET 2005,Open and Edit Cells in an Excel 2003 file in VB.NET,Format Excel 2003 Page in VB.NET ,How to export from database to excel,How to export from DataGridView to excel,etc.i know the structure a file excel.It contains 3 main component.
1. Application which can modify and operate cells .
2. Work book , is child of Application and contains worksheet.
3. worksheet is child of Work book and contain columns and rows.
I have a picturebox on the form that has the KeyTip property assigned. If I hit the corresponding key, nothing happens. It seems to only work with controls other than the PictureBox.I have set KeyPreview to True and added this
I have a script for uninstallation which I use to uninstall a developed application. For some reason I am getting the following message and the uninstallation is not working. The message is attached.The script for the uninstallation is follows:
Dim shell, systempath set shell = WScript.CreateObject( "WScript.Shell" ) systempath = shell.ExpandEnvironmentStrings("%SystemRoot%")
I am running Windows Vista Ultimate. I have a copy of Visual Studios 2005. The toolbar is not working. I tried all of these and none of these fixed the toolbar: -Show all (greyed out) -Reset Toolbar -delete C:UsersUsernameAppDataLocalMicrosoftVisualStudio8.0*.tbd worked one time then it did not.
... the value remained the same, unchanged.1 thing though, my app is started via Sub Main() in module file, instead of "Enable application framework". Does this affect the saving of Settings file?
I tried using LockBits to blur images, since I heard it was faster, and there's no error, but there's no blur either. It doesn't do anything. The commented-out code is the code I had before using LockBits, and it works.
vb.net Private Sub BlurImage(ByVal img As Bitmap, Optional ByVal radius As Integer = 3, Optional ByVal blur_bounds As Object = Nothing) Dim bb As Rectangle
Im having a very strange problem.. I just copied the source code from one working application to this new application. It was working fine over there but not over here in new application. Neither it was showing any error nor updating the data. Below is the source code (method) that im using ..
