I'm having a silly problem. Upon loading a form, I'm trying to change the value of a NumericUpDown. The form is being declared as following as a class-level private variable:
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I have a form with 84 NumericUpDown controls. How can I load each value into an array. E.G. Aryhours(1) = NumericUpDown1, AryHours(2) = NumericUpDown2..
View 3 RepliesI am having problems with the VS2008 (Professional Edition) hanging and corrupting files on my SBS2008 (64-bit) server. Once it hangs, attempting to delete, copy or rename the files on the server causes Windows Explorer on the server to hang and rebooting the server is the only way to regain access to the files. On my client machine, I'm running Vista Ultimate and VS2008 SP1, .NET 3.5 SP1. Constantly needing to reboot the server has become quite unpopular with other users I've moved my projects directory over to a secondary (32-bit) 2008 server to see if that helps things. My next guess (or maybe my first guess) is Symantec End Point Protection running on the server may be causing this...looking for other possibilities? I've seen other threads of VS2008 SP1 hanging but no real resolution.
View 4 RepliesSo I've just started up my most recent website:[URL]and it would seem that every 5th or 6th time I publish my project out of VS 2005 the Web.Config file corrupts and loses its connection string to the database and a nasty exception gets thrown stating that the web.config file does not contain the connection string that all of my SQLDataSource objects use.
View 1 RepliesI have an SMTP listener that accepts incoming connections and routes the message to a folder using FileStream. I have to add x-sender: email@address.com and x-receiver: email@address.com to the first two lines of the file so it can be put in a pickup folder for relay later. It seems as though this way of handling the incoming stream is corrupting the HTML in the email message body. Does anyone have a clue what I am doing wrong or a suggestion that would point me in the right direction regarding what I am missing?
View 7 RepliesI'm coding an application, it gets you some info and then saves in a .txt file like every 10 seconds on a timer. Testing the app, everything goes okay, on "accidental" application exit it goes well doesn't "corrupt" the file that I'm saving. But on "accidental" system restart the file just turns blank. 0kb, nothing in it. I don't get it. Here's my code about the file I'm talking about, it's a simple streamwrite function.
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I have a combo box that on valuechanged event, a yes/no msgbox pops up asking the user if they want to save changes. but if they click no, i want to change the value of the combobox back to its original value. but the problem is that the valuechanged event fires twice. is there anyway to keep the event from firing?
View 10 RepliesI am trying to clone some of my Controls, with their EventHandlers. I have a function to retrieve the Delegate of a specific EventHandler.The hard part is to find the correct naming to use.
This is the function I'm using
Private Function GetEventDelegate(ByVal ctrl As Control, ByVal eventname As String) As [Delegate]
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I am trying to clone some of my Controls, with their EventHandlers. I have a function to retrieve the Delegate of a specific EventHandler.The hard part is to find the correct naming to use.
This is the function I'm using
Private Function GetEventDelegate(ByVal ctrl As Control, ByVal eventname As String) As [Delegate]
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I created a module to add some Extension Methods to a Class. This Class inherits from another parent Class. In the code of my Extension Methods, I would like to refer to the base Class using MyBase. This doesn't seems to be allowed (Error message : "'MyBase' is not valid within a Module.")
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I have a class that inherits from a base class (this contains a lot of common db related stuff amongst other things and is marked as MustInherit). I want to write a shared method in which I call a base class method, however the compiler gives me the message 'MyBase is only valid within an instance method'. This shared method is a logging method and will be used a lot within the app, I'm trying to avoid having to instantiate an object each time I want to call it.
Is it possible to access the base class methods from a shared method?
In what scenarios would one use the MyBase and MyClass keywords in VB.NET?
View 5 RepliesI have a load sub with a few declarations isorry for thn it as so: [code] But when the TimeFrom_dtp.ValueChanged code is executed, the Time From_dtp.Value isn't correct as it hasn't been set yet. If I change it round so the TimeTo_dtp.Value is set first then that doesn't work because the TimeFrom_dtp hasn't been set yet? How can I get it so that the ValueChanged code isn't triggered until I've set all the values of my datetimepickers?
View 5 RepliesI have a form containing 135 NumericUpDown controls (15 rows x 9 colums).I also have a Button control (btnCalc) that performs calculations per each row.btnCalc.enable=False for the most part and I only want it to be enabled if the value of any of the NumericUpDown controls change - i.e., to prompt user to recalculate.what is the best way to program this w/out having to code a "ValueChanged event" for each of the 135 controls?
View 4 Replieshow do we access MyBase from an extension method?
i'm trying to extend a Sub called PassDown that would call the form's Base's OnPaint method
<Runtime.CompilerServices.Extension()> Public Sub PassDown(ByVal form_instance As Windows.Forms.Form, ByVal e As EventArgs)
MyBase.OnPaint(e)
but of course, mybase couldn't be accessed this way so is there an alternative?
It looks like there is a bug in the DateTimePicker control, because I don't find any event specific for the changing the check state of the checkbox, only the ValueChanged event seems available. So that event should trigger every time the date in a dtp is changed manualy, or by choosing a date from the calender or when the checkbox in the dtp is checked or unchecked by clicking on it, the event ValueChanged should be triggered. But it doesn't do that all the time.
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It all works fine it looks like this:Now thats enough for me but as many other users we have a problem of lack of knowledge when it comes to this:Windows is shutting down, the confirmation box appears and stops the windows from shutting down...This is unnaceptable imho and im trying to find a easy way to detect if windows is shuting down, or in other words if its NOT.So i put a: if windows isnot Shutting down then'all the other code in mybase.closingEnd ifIs such thing doable? all ive found was pages and pages of codes (something to do with api) and some outdated vb6 code...
View 3 RepliesIs there any ways to hide/shadow MyBase's properties?
Such as MyBase.Location, MyBase.Font?
When I try to declare a local "Height" properly, VS prompts me warning to use "Overloads" instead. But when in form designer/control test run, I still see this property, or any other properties (BorderStyle) which I tried to hide.
I am getting the following Exception when calling MyBase.Dispose ()ObjectDisposedException was unhandled.I tried adding a Try Catch around the call but it doesn't catch the exception.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
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FYI: The value of disposing is False
I add a date picker as follows
Friend WithEvents dtpReportDate As System.Windows.Forms.DateTimePicker
The default date picker has left arrow and right arrow which allow you to browser previous month and following month. I add a handler to date picker valuechanged event:
AddHandler dtpReportDate.ValueChanged, AddressOf dtpReportDateChanged
Private Sub dtpReportDateChanged(ByVal sender As Object, ByVal e As System.EventArgs)
'do something here
End Sub
The problem is that whenever I click left arrow or right arrow to change month, the dptReportDateChanged is triggered. I do not want this happens. All I want is that after I find a month, I double click date to trigger the event.
I have a picturebox set to move when the arrow keys are pressed. How do I prevent it from continously moving if the arrow key is HELD DOWN. I want to make it so the user has to press the key each time manually to move the picturebox.
View 14 RepliesI have a UserControl that has a ProgressBar on it. The purpose of the UserControl is to be able to show the progress % on the ProgressBar as text. To do this it uses the MyBase.Paint event. To make it work the ProgressBar is made invisible and the UserControl is 'painted' with an image of the ProgressBar and then the text is painted on top. The UserControl has a Value property that is passed through to the ProgressBar.Value property.
I use this UserControl in two places, on a Splash form (not a standard Splash Screen) and also on the main form of the application. It works on the Splash form but not on the main form - by work I mean that changes to the ProgressBar.Value property cause the ProgressBar to show its progress. The cause appears to be that in the Splash form case the MyBase.Paint event is called as a consequence of calling Me.Refresh in the Set procedure of the UserControl.Value property, in the main form case it isn't,
i.e. Me.Refresh isn't causing MyBase.Paint to run.
The main form has two BackgroundWorker components. The first gets called (RunWorkerAsync) from Form_Load after the Splash form has been shown. The BackgroundWorker.ProgressChanged event updates the Value property of the UserControl and it works exactly as intended. The second gets called as a result of a user starting an operation and again the BackgroundWorker.ProgressChanged event updates the Value property of the UserControl but MyBase.Paint doesn't run so the ProgressBar remains resolutely static.
Any ideas why it won't respond to Me.Refresh in one case but does in the other? Happy to make any of the code avaialble but didn't want to fllod the first post with reams of it. Here's what I think are the most relevant code sections. First the UserControl
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Private Sub LMouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseDown
If allowMouseCoordinate = False Then Exit Sub
Dim xPos As Integer
Dim yPos As Integer
If e.Button = MouseButtons.Left Then
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But this only works if I press on form. But I have a tile based map covering the entire screen.How can I make it so, that It would check if I clicked on a picture box (or simply anything)?
I have created a custom control with an event called "valuechanged" When I try the following line to: AddHandler
ScheduleMain1.ValueChanged,
New
System.EventHandler(AddressOf[code]......
Im doing the auto sign up in some websites but the thing is i want to use the NumericUpDown tool in Vb.net 2008, for example i choose 10 in NumericUpDown then i click the button then it will process or rather it will create 10 accounts... please give me an idea on how to use NumericUpDown... i try to play the code using if else but im stock.....
View 2 RepliesIm doing the auto sign up in some websites but the thing is i want to use the NumericUpDown tool in Vb.net 2008, for example i choose 10 in NumericUpDown then i click the button then it will process or rather it will create 10 accounts.
View 5 Repliesevery thread I've seen is trying to figure out something more complex. as a project for school I am making a grocery list form. I don't know how to work with the numericUpDown control. The form requests this information:
item: (textBox as string)
qty: (this is the numericUpDown)
size: (comboBox: can select from lb, gal, oz, each,.....etc)
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I'am using the NumericUpDown_Validating event to cancel mouse clicks on the up and down arrows of the control.The idea is that the NumericUpDown control will stop incrementing when the base of a form reaches the bottom of the screen. That works, however the textvalue keeps incrementing. Why does the text keep incrementing and how do I stop it?
Private Sub NumericUpDown5_Validating(ByVal sender As Object, ByVal e As .ComponentModel.CancelEventArgs) Handles NumericUpDown5.Validating
Dim y As Integer
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I have a problem in the validation of NumericUpDown control in VB.net. I want it to accept only the numbers, but it is accepting punctuations like '.' and apostrophe also, here my code what I did below, but still the problem persists, I used keypress:
View 4 Repliesim creating a simple timer.it have NumericUpDown and Progress Bar. i use NumericUpDown to set the timer in minutes.I also put Progress Bar to indicates the percentage of times completed.For example if i set the timer to 1 minutes so if it at 0.5 minutes the Progress Bar will show 50% completed.But the problem here is the Progress Bar is not working.
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