I've run into a bit of an issue. Sometimes a user starts a search, but doesn't want to wait for the search to finish because they thought of some change they want to make or because the search is taking too long.
How would I cancel a Search? I understand that I would have to run the Search on a separate Thread. Would I just abort the Thread? Or do I need to send SQL Server something to let it know that it can cancel the query?
I validate a DataGridView with the CellValidating-eventhandler.That works fine. However, I want to avoid validating when the user presses the Cancel button. In the sequence validation occurs before the event CancelButton.Clicked.
i want to do this: when user click save button, the form must be check first..
if user did not insert the required data, user are not allow to save form..
the code:
Private Sub AssetMasterBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AssetMasterBindingNavigatorSaveItem.Click
I have a drink program with 4 staff members and want to know how to cancel the input box if they accidently click on another persons login. can you close the input box by clicking can and to close the loop. All Logins have the same code just different names
'Marys Login Button Private Sub btnMary_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMary.Click Dim counter As Integer = 0 ' Reserve Counter as integer in memory and assign a value to it
I have a drink program with 4 staff members and want to know how to cancel the input box if they accidentally click on another persons login. can you close the input box by clicking can and to close the loop. All Logins have the same code just different names
How can i cancel the eventhandler, i have a problem with tab browser is that:- i have a set of button image to show the forward and back button which are disable or enable (like IE).Inside my program which are deal with the web_CanGoForwardChanged and web_CanGoBackChanged event.my problem is that if i click on other tab faster than the eventhandler done,i got the wrong image shown on button.how can i stop the eventhandler to prevent the wrong image.
Public Function GetBrowser() As WebBrowser If TabControl1.SelectedTab IsNot Nothing Then For Each c As Control In TabControl1.SelectedTab.Controls If TypeOf (c) Is WebBrowser Then
When a user wants to delete a row in a DGV, they are asked if they are sure they want to do it.
how do I go about stopping the row from being deleted should they say no?
Private Sub RoomCodesDGV_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RoomCodesDGV.KeyDown Select Case e.KeyCode
if I print 100 copies of say, my document, is it possible to cancel it after say 30 seconds, if the client does it, and has made a mistake, can I have a UI with a cancel button allowing them to stop it? or once it has gone to the printer, is it too late?
What function would i use to cancel the form from being closed via them pushing the "x" in the top right?Basically want it to hide the form, set showintaskbar to falseand then display the notifyicon. Which all I know how to do, but cant quite seem to figure out how to stop the form from being closed.
I have a ListView object with the View property set to Details. I also have the CheckBoxes property set to True. When a user clicks the checkmark I have it run through some code in the ItemCheck event. Assuming the checkbox is
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With the code above, the check box still changes state regardless (Checks and unchecks). How can I force it to stay with the current state before the user clicks on the checkbox?
i have this MDI parent and A Menu..... in a file menu, i have a log-in... when you click the log-in, the log-in system will show...my problem is when i click CANCEL then click it again it will be separated in the MDI PARENT and form another window..
Ive got a datagridview, which the user can put in to 'edit' mode by double clicking. If they then make changes but click to another row, I want to msg asking if they are sure they want to discard then changes. If they say No I want to stop the selection change from being made.
Private Sub DataGridView1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged If edit = True Then
Im coding an interest rate calculator and I need a close clause for the textbox and the combo box using e.cancel and im getting a "cancel is not a member of "System.EventArgs" error
I use this line to download files: My.Computer.Network.DownloadFile(VideoFilename, SaveLocation, "", "", True, 8000, True But if a users cancel the download my application crashes. I searched Google but there's very little info about this problem. I tried with: My.Computer.Network.DownloadFile(FilenameMP3, SaveLocation, "", "", True, 8000, True, FileIO.UICancelOption.ThrowException, FileIO.RecycleOption.SendToRecycleBin()) But that line of code doesn't work. I need to get rid of the file when a users cancel
I was wandering is it possible to use a query within another query below is the code I am trying to use.
Public Function GetInventByComp(ByVal CompID As String) Using DC As New DataClassDataContext 'need to get company id's based off names? thats bad should be name from Id need to rethink this Dim invent = (From C In DC.Inventors_Companies _ Where C.CompID = CompID _ Select C.InventorID).ToString
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I was trying to us multiple values in a string like "1, 3, 5" but I can't seem to get that working either so I am trying to use just a single value now. Can anyone help me? "Yes I am new to this"
When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
This should be simple, but the answer is eluding me. If I've got a Save action in my controller, and the save fails, how do I cancel the action without disturbing what the user entered? For example, Index is strongly-typed of "MyTable":
Function Index() As ActionResult ViewData("message") = "Hello" Return View(New MyTable)
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In the Catch, if I put Return View(form), I lose the message passed via ViewData. If I redirect to Index, I'll lose what the user entered. I think I've seen the simple (correct) way to handle this before, but if you don't know what to search for, it's hard to find.
I was hoping somebody out there could help me please, I have an application which uses threading, process and runs cmd.exe - the problem I have is that I cant cancel the command.I have one textbox and two command buttonts, button 1 is run and button 2 is cancel - for this testing purpose only (my app wont be pinging but I'm doing this for testing only) I'm hoping to enter an I.P address in the textbox and then click on Run which starts a thread and the process, which so far is working.the coding I use to run the command is.[code]Now comes to difficult part, whilst the command is running I want to click on cancel which kills the thread and process which I have done but I have hit a brick wall because even though my thread and process has been killed my command carried on running, what I would like is the moment the cancel button is clicked to kill the thread, process and the command.
I am not familiar with threads, but the project I am working on has a bunch of them. There's a thread for the main form, then threads for activities like a calculation, converting files, etc, so that the user can kick off a calculation job and then kick of a conversion job that will run at the same time. Typically, calculations can run for hours and hours; conversions and other threads may only run a few minutes.If the calculation runs into a problem, how do I cancel that thread? It looks like the threads are controlled (driven?) by the main form, but I'm at a bit of a loss.....
I have been working/coding with e.Cancel, e.EventArgs, etc without knowing what the "e" stands for. Can I have a simple explanation of what e means and possibly similar concepts in VB.Only performance counts!
How do I add a cancel button to a message box? I really need to know this because it is kinda stupid that i have a message box saying "Are you sure you want to clear everything?" and have no cancel button. Also what code do i need to make a program key where it is made so that I give a key and it works with that specific program another one will be made with a different key. I have no code for that because i have no clue where to begin (3 day trial code so it is locked would be nice to) The other problem I have is makeing the program open new windows so if i click trial then it will run for 3 days then done and with code making it run forever without the pop up again so how do I do all that?
Public Class Form1 Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click RichTextBox1.Undo() End Sub
When I use form properties (Cancel button)it's work but most time this properties will not work properly. How do I this...any another method to close the form on Esc. button...