User Cancelled Adding New Row To Datagrid - What Event Gets Fired

Apr 15, 2009

When the user clicks a cell in a new row (the row headed by the *) I am populating a column with an integer that is incremented in the "DefaultValuesNeeded" event. However, when the user clicks off the row (having done nothing to the row), what event gets fired? I need to decrement my counter but can't locate an appropriate place to do it.

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Nov 28, 2011

I know that there is usually a DoDragDrop method that starts a drag and drop operation. And that there are events (such as DragEnter, DragOver, DragDrop, DragLeave) that can be handled on the target side.

Are there any events on the source of the dragdrop that will tell me whether the dragdrop operation was completed, or possibly cancelled?

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Jun 21, 2010

I am using Excel 2003 (under XP) to print to several printers, with several different kinds and sizes of stock. My workbooks consist of two sheets: "Data" and "Print." "Data" should never be printed. "Print" is laid out with the proper spacing for a particular stock, and should not be sent to the wrong printer.

I want to use a BeforePrint event to check that the active printer is correct and that "Print" is the active sheet. If either of these tests fail, I want to cancel the print event and replace it with a new one.

Here is the problem I am experiencing: Upon opening Excel, all printers function normally. The first time a BeforePrint event is cancelled, Excel gloms onto the active printer and subsequently tries to use its driver for all other printers. In the Print dialog, every printer selected will show the model of the cancelled printer next to "Type" and its location next to "Where," and the Properties button will bring up the preference menu for the cancelled printer. It is still possible to print to the other printers,
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[VS 2010 Beta with .Net Framework 3.5]I've written a C# component to asynchronously monitor a socket and raise events when data is received. I set the VB form to show message boxes when the event is raised. What I've noticed is that when the component raises the event synchronously, the message box blocks the component code and locks the form until the user closes the message. When it's raised asynchronously, it neither blocks the code, nor locks the form.

What I want is a way to raise an event in such a way that it does not block the code, but is called on the same thread as the form (so that it locks the form until the user selects an option.)

[Code]...

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I have the following code in the code behind of an ASP.Net Page

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Dim queue As PrintQueue

[Code].....

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I am developing application which will read credit card no without generating keystrokes for same in POS for .net. I can enable device but when I swipe a card MSR_Dataevent is not firing. EDIT: I have done below code:

[Code]...

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Feb 20, 2012

I'm creating a dynamic gridview in vb.net using a connected sql database. Everything works fine except 1 thing: when i click the update command, the event just won't fire no matter what I do. the gridview goes into edit mode and the cancel button works fine. This has cost me over 2 days of googling but none of the solutions work. I used breakpoints to check if the code was executed, but it wasn't. If anybody has any experience in this:I believe the problem lies in the addhandler but it doesn't give any errors.I forgot to mention that the sql command was a test and sets the data in that field to 15, now it's 10, it works when i use a normal button or a static gridview.

Public Class WebForm1
Inherits System.Web.UI.Page
Dim rowscount As Integer = 2

[code]....

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[Code]...

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Sep 24, 2010

I'm having an issue where my main form isn't updating even though I see the event fire off. Let me explain the situation and share some of my code which I'm sure will be horrible since I'm an amateur. I created a class to take in the settings for running a process in the background. I add some custom events in that class so I could use that in my form instead of a timer.

[Code]...

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Nov 4, 2009

Back in the VB6 days, I could count on frmWhatever_Resize() to be fired when a form is loaded. That doesn't still seem to be the case. Since my resize event is filled with all the code I want that adjusts the size and placement of things, I decided to just call it from the end of the form's load event. That has no affect. I'm guessing that the form isn't actually shown until form_load is finished?

is there some other event that is fired when a form is shown, so I can call my resize code there?

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Feb 24, 2012

I am writing a program to access the remote file data using FTP on button click event. Set breakpoint in the fist line of button click event. That program is using windows application vb.net 2008. If I run the application, when I click the button, it does not fire a click event of the button.

Here's my code:
Dim reqFTP As FtpWebRequest
Dim filepath As String
Dim filename As String
Dim filename1 As String
Dim ftpserverip As String
[Code] .....
During run time when I click the button the control not entered to an click event.

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Dec 4, 2010

I have menu item, in which I have specified ShortCutKeys as "Del". On click of menu item I have called specific method. I have one form on which one textbox is placed. When I hit the "Del" key the same method which gets called on menu item click is fired. I want the default behaviour to be followed by the textbox. how to suppress the event to be fired and to achive the default behaviour of the textbox or other controls present on the form.

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Feb 26, 2010

I have been struggling with getting FormViews to work the way Microsoft expects me to for about a day and have figure a bunch of great stuff out.

I can catch e.Exception and e.ReturnValue in the ObjectDataSource.Inserting Event Handler and I can even cheat and check other properties of the Object in the ObjectDataSource.ObjectDisposing by checking the e.ObjectInstance ... and I even learned that FormView's Inserting Handler Runs AFTER the ObjectDisposing Handler so If there is a problem found I still have time to react to it and st the e.KeepInInsertMode to true on the FormView.

My problem is, it seems that the values entered by the user into the Insert form are cleared regardless.

So, How do I Prevent a FormView from clearing after it's Insert Method has fired?

(Using ASP.NET + VB)

I don't think posting my code here will really do much good and i would have to modify it to trim out confidential business logic stuff... so I'll skip it for now.

edit:

I have found a temporary and admittedly terribly cludgy solution (in case no one ever finds a REAL solution to the problem).

I have a page variable defined as:

Dim eInsertArgs As FormViewInsertedEventArgs

And then I do the following in my ItemInserted handler

If boolInsertErrorOccurred = False Then
e.KeepInInsertMode = True
eInsertArgs = e

[Code].....

The effect of this is that I am setting the values BACK to the submitted values AFTER ASP.NET binds the FormView to the default (blank) Template.

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Dec 30, 2011

currently, i have this code: My_BgWorkerB is the Name of my BackGround Worker

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[code].....

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Public Sub StartInternetConnectionCheckEvery(ByVal seconds As Integer)
Dim timer As New Timer()
timer.Interval = seconds * 1000

[code].....

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Feb 12, 2010

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[CODE]...

Is it possible to force this event to occur instead of waiting for it?

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Aug 15, 2011

Well my datagrid so far has the edit,update,cancel feature and it can get info back from database after entering a number into a textbox.

All i need now is to get it to where I enter a number the data comes up which works and I want a blank row to show up which i can edit and add stuff to.

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Try
Using BITSManager = New System.Net.BITS.Manager
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cn.ConnectionString = "data source = RayonRayon; initial catalog = library; uid=sa; password=minnie"
cn.Open()
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1 - Andrew - 1.8
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[code]....

What I want to do is for every row of data in the datagridview, i want to add a column for checkbox. The checkbox will be enabled or disabled based on the value found in the field results. The first time I am pressing the button, it works fine. But the second time i query, it keeps adding another checkbox to the same row. Even for the nth time. Everytime i press the button, a checkbox is added. I just want one checkbox every time i query the dataset.

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dbConnection = New OleDbConnection
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Try

[Code].....

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