Exit A Private Function On Error?
Jun 10, 2009I am using this function in a module which is called from this event " Public Sub Painting(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs)" in the module[code]...
View 1 RepliesI am using this function in a module which is called from this event " Public Sub Painting(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs)" in the module[code]...
View 1 Repliesexplain me the difference between them? I'm new to visual basic, and I need to know the very basic things in Visual Basic allowing me to become a professional User
View 8 RepliesI am completely lost on procedures. Whats the difference bewteen Private sub and private function?
View 1 RepliesI have two Close() functions in same class as below:
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I am using following code to run a private function.I have two values in my combo box, One and Two and two private functions with the same names, Private Sub One() and Private Sub Two()I want my application to call the function whatever value user choses in the combo box.If One is chosen in the combo box, Private function one should be called.Code is below, that does not work
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim vrValue = ComboBox1.Items(1)
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Basically i have a question how going to added the new private function as highlighted ?
View 14 Repliesi want to add calculations in 1 private function I have a textbox named lbldisplay.text when i enter a number.. the number is shown as a string so.. -private number1 as string when i press the button "+", "*", "-", or "/" the number1 must return into a double. So the number in the textbox is now a double.. so for example i press the + button, and i need to fill in a new number.. but this new number is also a string!
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I design a simple program that has manys sub program, I am trying to call Private sub, but i dont want may program to wait until it get back from that private sub, i want it to conitunie.
like calling Exp2 and the Exp1 countine the other command without waiting to get back from Exp2
Private sub Exp1 ()
...
...
...
Call Exp2
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In VB.NET on a boolean function if you run an Exit Function line will it return false?
View 4 Repliesin my following code, i get the warning doesn't return a value on all codepaths
Public Function getbacktrace(ByVal backtrace As Integer) As StackFrame
With New System.Diagnostics.StackTrace()
If .GetFrame(backtrace + 1) Is Nothing Then
exit function
[code]....
if i change exit function to return new stackframe,anyway, why doesn't Exit Function automatically returns a "dead" stackframe?
I am using visual basic and trying to create function. I am getting this error:
"Argument not specified for parameter '_IsDayRateCheckBox' of private function CalculateParikingCharges(_HoursDecimal As Decimal, _IsDayRateCheckBox As System.Windows.Forms.CheckBox) As Decimal'.
This is the code.
Private Function CalculateParkingCharges(ByVal _HoursDecimal As Decimal, ByVal _IsDayRateCheckBox As CheckBox) As Decimal
This is how I call the function.
Dim HoursDecimal As Decimal
Dim AmountOwedDecimal As Decimal
If Not Decimal.TryParse(HoursTextBox.Text, HoursDecimal) OrElse HoursDecimal < 0D Then
ErrorLabel.Visible = True
HoursTextBox.Focus()
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What is the difference between Private Sub /private Function / Private Class and to use them?
View 4 RepliesI'm trying to make an application that calls a function to create a timer, but I cant use WithEvents or Private inside of a function or sub, Is there any way to do this?
View 5 RepliesI am trying to call this private function, but am missing somthing, anybody point me in the right direction Private Function DL_WebPage(ByVal _URL As String) As String This is what I have tried, but with no success: call DL_webpage But this comes up with an error
View 3 Repliesi made this code
VB.NET
Dim iString As String
If My.Settings.IPBank.Count = 30 Then
MsgBox("You alredy have the maximum amount of IP Addresses stored, delete one to add another.", MsgBoxStyle.Information, "Program Error")
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I want it to check all of the items in the my.settings.ipbank which is a stringcollection. Before it adds and if it already exists in my.settings.ipbank then i want it not to add it. But it just adds when i run it. And then once its added it says: "Collection was modified; enumeration operation may not execute." But also before i run it. There is a warning saying: Function 'AddTo_IPBank' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used. Is this something to do with it? I think i have the Next in the wrong place .
I have the following piece of code: trying to use this in 2.0 framework. getting error for not having a return statement before exit function.[code]...
View 4 Repliesthis its a function i made to make sure all the fields on a form are filled before to save to database but once it finds a object it should exit. but it just doesnt... i tried also with exit for and exit sub also tried puting the exit for just after the msgbox shows up but it wont exit, this its the last thing i did using a flag but it doesnt exit either.
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Just curious on what the difference is between the "Me.Close" and the "End" code for Visual Basic in terms of writing a Exit Button?
View 13 RepliesI have as sub that is triggered from the file system watcher when the new file is created in spec. directory.I need to call some function to do something with that file. [code]
View 6 RepliesI have wrote a function which validates a masked exit box date format. I have entered into the Mask property 00/00/0000 which on screen translates to __/__/____, great. If I get an invalid date I want to clear the content and reset the focus back giving a message box warning. [code]It all seems to work until I then try to enter a new date. The first number a press seems to push the mask characters to the right and then the rest works. So if I entered 01/01/2009 I end up with _1/01/2009.
View 29 Repliesim parsing an xml file using this code Private Function overview2(ByRef filePath As String)Dim reader As XmlTextReader = New XmlTextReader(filePath + "\movieData.xml")
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it works 80% of the time. What i mean is , i go through each node and when i find the overview node i read the data and send it to a text box. Im doing this for movies on disk. sometimes on certain movies it doesnt find the overview node even though it is there .
How can I create a function from this example:
Private Function CheckForNull(fieldvalue as string) as Boolean
That checks that all my fields are not empty? For example, say I have three fields txtFirstName, txtLastName, and txtAddress. How would I write the function above that would check that these fields were not left empty?
I am having trouble with some code I am writing to handle an Excel spreadsheet. The idea is that the dialog box is displayed which invites the user to select an Excel spreadsheet. Once they have done that, it is opened and a separate function checks to see whether Sheet1 exists returning Nothing if it is not found. The intention being the try/catch block picks it up and gracefully does nothing. The problem is that when the function returns nothing, the dialog box is still displayed and the sub doesn't seem to exit. [Code]
View 4 RepliesI want to exit a recursive function once the a number is repeated in a list. i.e. In the following code I have 'AST' as a list. How can I stop adding data to the list once the first number repeated?
The result in the below code is:
1 2
4 5 1 2
4 5
1 2 4
5 1
2 4 5
1 2
4 5 1
1 3
3 5 6
3 3
1 3 3
5 6
3 3 1
3 3
5 6 1
5 6
1 5 6
1
What I want for AST to be: 1 2 4 5 1, because 1 is repeated.
Just Add to your form a richtextbox and a button.
Public
Class Form1
Dim TheConnectionsValue(6, 6)
As Integer
Dim NumberOfNodes
]Code] .....
I'm looking to write a function that is called everytime an exit button is pressed, just simply prompting the user to click yes or no is there a guide anywhere? is there a name for this kind of thing i can look at it more?
View 7 RepliesI am cleaning up some code and I have multiple classes that are 99% exactly the same. So my understanding is that my options are...
1. Create a class and all other classes inherit from it and modify it a bit
2. Create an abstract class and all classes inherit from it and modify a bit ** I took this route
3. Create an interface and all classes Implement that interface.
Here is my 'original' class below (the one that all of them look 99% identical). This class is used in an arraylist so I have a listing of all my images from a folder I have searched.
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Where my real world programming inexperience shines through. I have a function which makes a call to three other functions[code]...
View 5 RepliesI have a simple program that was written to access data from multiple access tables. I have everything running perfectly however I did encounter an error with the exit button. I have removed the control from the window and replaced it with a exit button on the form. However I am getting an error reading: "Handles clause requires a WithEvents variable defined in the containing type or one of its base types."I am a little confused because I have this exact same line of code in two other programs and it runs fine. I have read up on this and I know that I need a line of code that reads something like " Friend WithEvents Button1 AsSystem.Windows.Forms.Button" However I am not real clear on what friend means here and where exactly the With Events goes in my code?
Code for exit button
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click'The problem is with this line of code'
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When I close my VB.NET application it occasionally yields the following error code: The program '[1584] Foo.exe: Managed' has exited with code -1073741819 (0xc0000005). This error only occurs when one of the MDI child windows is maximized and then the program is subsequently closed. When I step through the code, the error appears to be generated after the execution of my "custom" code is complete. What might be the cause of such an error? Where might I find more information about this exit code (Google and Bing were little help - maybe I didn't search for the right thing)?
View 4 RepliesI'm developing a program using VB 2005.I've tried to use the following instructions to "kill" the application
Application.Exit()
Environment.Exit(0)
(not at the same time)
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