I am using the folowing logic to create an event that can be canceled...
Code:
Public Class ParentClass
Private WithEvents MySubClass As New SubClass
Public Sub DoSomething()
[Code].....
It is my opinion that if you needed multiple things to happen either you would implement some coordination between your event handlers as to who chould cancel when, or have one handler that calls the multiple methods and decides the cancel in one place?
I always make back ups of my projects in case I'll really really mess up on the way and want to go back to more stable version. I've tried running one of my back ups few days ago and ended up with importing pfx key canceled. What exactly is pfx key? And what do I do to have my code compiled?
Running VS2008 working on a customized DotNetNuke version. This issue has come up a couple of times figured I'd see if it's unique to this installation or if it's a IDE bug.
In short I have files that get locked as Readonly and the only way to unlock them is to do a build.
The app I'm working with takes > 60 secs. to build on my box. This error seems to reproduce fairly regularly but you'll need an app that takes a while to build to try it.
During a build try to edit a file.
You should get the error "Cannot currently modify the text in the editor. It is read-only." and a little lock should appear on the tab.
If you wait till the build completes the lock disappears and the file can be edited.
However if instead you cancel the build the file stays Read-Only until such a time as you either restart the IDE or run a build and let it complete.
Looks to me like someone forgot to call the unlock files method in the cancel event handler.
I get this error while trying to add a printer driver.The operation was canceled by the user. (Exception from HRESULT: 0x800704C7)
Public Function AddDriver(ByVal DriverName As String, ByVal InfFile As String) As Boolean Try Dim PRNADMIN As New PRNADMINLib.PrintMaster
[code]....
UPDATE: The application requests administration rights in app.manifest (requestedExecutionLevel level="requireAdministrator")I get the same error with UAC On or even OFF.The driver is not digitally signed If i install the driver manually i get the windows security warning, with "Don't install this driver software" as the default option (And unfortunately, do not get that Message while running the code above).
When large number of records in Database, it throws error "Operation has been canceled by the user" in vb.net. I want to retrieve records from DB2 and display the records in DataGridView in VB.net. If number of records is less it works fine. But if the database tabe has large number of records it throws error "Operation has been canceled by the user". [code]
IN VB.NET (not c#)I want to create an event than can be canceled by the listener. Just like you can cancel the closing event of a winforms form in which case the form won't close.I have already implemented a derived class from EventArgs that has a settable Cancel property as follows:
Public Class AnnounceNavigateEventArgs Inherits EventArgs Private _cancel As Boolean = False
[Code]...
The listener I have setup is setting the property to Cancel=True. I thought ByRef meant that both _cancel and cancel would point to the same location on the stack and that setting _cancel=true would therefore make the cancel = true. But this is not the behavior I am getting. _cancel becomes true in the setter but I guess the argument to the constructor remains false.
Private Sub txtField_KeyPress(ByVal Index As Integer, ByVal KeyAscii As Integer) Dim vbkeyreturn As ValidationConstraints If KeyAscii = vbKeyReturn Then MsgBox("hello") End If
have just declare a button and it appeared on the form.but i want to create event for it.example event click:this is code create button
Dim btn As New CButtonLib.CButton Dim CBlendItems5 As CButtonLib.cBlendItems = New CButtonLib.cBlendItems CBlendItems5.iColor = New System.Drawing.Color()
How do I create an event with many handlers. I use the followingo code but it failed. Am I missing something?
Protected Sub myhandler_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CrdCb1.CheckedChanged, CrdCb2.CheckedChanged End Sub
for the past >8 years i was doing VB / VB.Net work now I'm jumping into C# world, so far it's very easy only thing that I find difficult is the fact that the signature of every events on object are not automatically created for me.I'm used to select the object name in the left dropdown in the code view and then the event that I want in the right dropdown.is there something similar to that in C#? if yes where can i find it, I really wish I don't have to write them by hand...
I have a form that I am adding a set of buttons to. I am adding an event to those buttons. I need this event to function slightly to determine what button was pressed.I need the button to simply set a string variable equal to the clicked buttons text so I can determine what button was pressed.How can this be accomplished?
'' 'Adding the buttons '' For Each dr In dtMenus Dim strMenuName As String
I want to create a track bar using paint event, but the problem is on mouse move event<Me.Invalidate()> is very slow since the graphic become unvisible for milli seconds and then return back, is there a way to make it faster?(doesn't become invisible)
I have a form that depending on results from a table would create a number of buttons using code at runtime. This could range from 1 to 20 buttons. What I am struggling with is creating a generic mouse over event for each of these buttons? The reason why I want a generic mouseover event is that depending on the text on the button I would do certain things, instead of duplicating the same code in individual mouseover events.
I have a form that depending on results from a table would create a number of buttons using code at runtime. This could range from 1 to 20 buttons. What I am struggling with is creating a generic mouse over event for each of these buttons? The reason why I want a generic mouseover event is that depending on the text on the button I would do certain things, instead of duplicating the same code in individual mouseover events.
i create runtime form and this form one button create at runtimeand that button's click event handle at runtimehow do this at runtime?i project is runtime create calculator
I'm pretty sure i'm not doing this right but i hope by asking this someone can show me the right path.I've created a function that creates a label and 7 checkboxes arrays . So depending how many names i get from my database, it creates that many for the label and the other checkboxes.
Now my function is inside a module which i call in my Class Form during "Load".
So what i want to do is be able to code in an event where the user checks on one of these
I'm using winform and fb.net. Any example of how to create a buttons click event? I have dim but as windows.forms.button but.name but.text but.location etc. but I how do I create the Click and the code behind it?
I am trying to open _blank link to a new window,I have succeeded in doing so after a hard workBut How do i get window size from the java script , Like this
I have a tool strip menu item who's collection is filled from a subroutine that loads all available com ports on the computer at for load. I know how to generate a click event for menu items that are filled, but not if they haven't been filled already. I guess it doesn't need to be a click event. It just needs to do something that I can get the .text and use it to configure a serial port.
I am attempting to create a timer that will activate a tick event every 1 second until stopped by an "If" statement. The tick event should then drive a clock measuring time in units of hours, minutes and seconds. The if statements handle the time readout, timer stop and activate another form after a set number of hours have elapsed. I have tried several different methods and while my application is running, it does not add increments to the integers representing the time units, refresh the displayed time units, or perform any of the timer related functions. I assume the cause is that I just don't know as much as I think I do (which isn't much)
Here is the applicable code:
Imports Microsoft.VisualBasic.ApplicationServices Imports System.IO Public Class SessionManager
I'm trying to create an event handler for a graphic elipse, so I can do the math in a separate "control box". There will be multiple graphic elipses feeding the TextBoxE1 box. ( As for all the note textboxes.) This is a graphic creation of a guitar neck that will tie to a 2 table database. Click on a note & it will be identified, a series of notes will call on the related scales from the database. The problem is that I need to create an event handler for each graphic elipse so the code won't fire unless the elipse is clicked on. If only one elipse in that keynote value is clicked, it will put a "1" in TextBoxE3. TextBoxE1 & TextBoxE2 will be hidden.
TextBoxE1 value = "0" until at least one "E" is clicked. ( Elipse that is valued as "E".) TextBoxE2 value = "1" TextBoxE3 value = TextBoxE1 + TextBoxE2
I am developing an application and I use a 3rd party library which is basically Native excel. The problem is that this library does not implement an event which is able to notify me when the value of a cell value changes.
I'm using an on key down event for my datagridviewer that fires every time a key is pressed while the datagridviewer is selected(Focused).I want the same thing to happen while in a cell, but there is no event for key down in a cell.
