Is it possible to skip a code block when a synclock is active?
For instance:
A object of class Bicycle is used by thread 1 and has a synclock on it.
Then thread 2 comes along and needs to know if the lights of the bike are working. But if there is a synclock active then thread 2 just forgets about checking the lights and goes to make a delicious chocolate pie.
Say I have some code that does this:
Public Function AppendToLogFile(ByVal s As String) As Boolean
Dim success As Boolean = True
Dim fs As IO.FileStream = Nothing
[Code].....
First of all: is it a problem that I have that Try/Catch/Finally block inside of a SyncLock?
Second of all: suppose this code runs, on an event, potentially many times within a small timeframe--say, ten times in one second. Is it OK to have it SyncLock like this, or would it make more sense to have it add a line to a Queue, and then write all the lines from the Queue to the file on a timer that goes off, say, every second?
Is there any way to skip a the validating event of the active control when the close button of the form is clicked. It is very annoying when user wants to close the form, but due to the validate event of the active control, it asks for the valid input. The user is forced to give valid input to close the form. I have searched a lot for this on net but no any proper solution could be found.
View 5 RepliesI'm having trouble working out how to lock my application out of a section of code while it waits for a response from an external program've used Synclock on a section of code with the Me object in the expression. In this Synclock I call an overridden ShowDialog method of a dialog box, which has a timeout parameter, but does return the value from the underlying ShowDialog function call ,once the timer is setup. Works like this.
SyncLock Me
Dim frmDlgWithTimeout As New frmDlgWithTimeout ' dialog box with overridden ShowDialog '
Dim res As DialogResult = frmDlgWithTimeout.ShowDialog(10 * 1000) ' 10 sec timeout '
[code]....
Am experiencing a confusing situation where the debugging seems to skip arbitrary sections of code (including breakpoints) and then breaks on non-breakpointed lines. The call stack reports [External Code] even though its not external code
View 2 RepliesThere has been an Visual Studio addin created by Heslacher based on code by JohnWein which allows one to copy code in Visual Studio and paste it as HTML code block here in the forums.urls...
View 10 RepliesHow to comment multiple lines of code/block of code in VB?
View 5 RepliesI want to get a 48 byte block of assembly code from the memory, save that code in a global array or whatever, then I wanna NOP everything from 0xF to 0x16, and write that into the memory, and then later I wanna use the global block to set it back, how can this be achieved in VB.NET?
View 4 Repliesnow if i've written a code, and then wrote that if a certain condition presents then repeat that code again including that if condition, so what is the code for this?
View 3 RepliesI have a simple question on posting to this forum: what tag to use for a code block?
View 4 RepliesI was wondering, is their any way to change a string into a line of math code. I was working on a graphing calculator project and am having trouble splicing up everything into variables and coefficient and operators. Example, having this block of code work
[Code]...
I have a script file which uses code similar to the C# language, using { and } braces to start and close 'blocks' of code. Note that blocks can be nested.[code]...
Is it possible to use regular expressions to parse the code and return the name of each block separately? So in the above example, it should return block1, block2 and block3 but NOT "block 2 contains" or "and another" (no nested blocks).
'This program is to ask for input from a customer as to the type of lift ticket desired, whether it will be for a half 'day or full day and the total number of days desired. It will then calculate the total ticket price plus a slope 'charge of $10.00, a 10% sales tax will be added to the total of both the price and charge.'The checkboxes were designed to order one type of ticket at a time, when one box is clicked the 'other checkbox dissappears. Clicking the box again resets them both to visible.[code]
View 16 RepliesI'm trying to replace text using this method:
Add each characted to a String list (List(Of String)), execute the replace function for every type of character (for example: Text = Text.Replace("A", "0AA") Text = Text.Replace("a", "1AB")), but there's a problem: it replaces the text, but it replaces those replaced characters too, so when I replace "A", it will result something like this: "0AAB AAA 0AB"... (a long text)), and then add the characters to the result string
how make the application stop and start the replacing of the next character
I'm trying to use this code block:
Dim ReturnedString As String = GivenText
Dim ListToEncode As New List(Of String)
Dim curr As Integer = 0
[Code].....
I'm wondering, is there a utility out there that will let us select a block of code and be able to replace it?
If there is none then I would want an idea on how can this be done so I could make a small utility for this task.
I have a block of code in an application I have written. I have tried two different variations.Below are examples of the method I used: [code]
The second example adds only three more lines of code. Yet, the app would run at about 10% of the speed as it would in the first sample.
I have this block of code that splits txt/csv files. It is working just fine but its a but "ghetto"
[Code]...
I am using the given code to copy my database files...it works like a charm in debug mode but as soon as I create a setup, it stops working. The error is
"Database Detach Failed"
I tried checking the code line by line and found that the code does not enter the IF block.I have no idea why.
Public Sub bk()
Try
Dim strDatabasePath As String = My.Computer.FileSystem.CombinePath(My.Application.Info.DirectoryPath, "LIC.mdf")[code].....
Well, I've read (and learned) that the finally block doesn't always execute its code (even apart from pulling the plug).FYI For more information, see try catch finally question
[Code]...
I have an interface that I've defined and am working through a bunch classes that will implement it. I'm noticing that in 95% of the implementations, I'm only changing a few lines of the code, so I'd like to know if it's possible to have my IDE generate a block of code inside of a method upon implementation, much the same as implementing IDisposable.not mark my posts as answered. It is extremely rude. You have no idea if you've answered my question.I WILL come back and mark the ones that are answers, as answers.
View 7 RepliesIt's just before while I found that expression (see my signature) is possible, so this request is not about what 'I am missing', but what I can think of. It would be nice to have named sections of code in visualbasic, which would replaced almost everything you can miss about GoTo. Imagine this:
Section Compression
For Each item ...
If Not item IsV...
[code]....
i am using vb2008: now i can find the parent window with this block of code
Private Sub Button11_Click_2(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
Dim theHandle As IntPtr
theHandle = FindWindow(Nothing, TextBox9.Text)
[code]....
i do know how to use sendkeys, but if i use that and click on something else while i send the keys it picks up that window and trys to send the keys there thats what i dont wantnow using the top block of code along with this module how can i get the childwindow with focus on the "Richcntl" box to send text to itin a diffent click button:in this block:
Private Sub Button13_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
End Sub
Does anyone know the code to address Logical Block 0 of a disk? This is my dump of block 0 of a multipartition disk.
[Code]....
I minimize a block of code, and instead of the text inside the rectangle being "..." I need to write smth of my own. I knew how to do it some long time ago, but I've forgotten it now.
View 6 RepliesI'm creating some software in visual basic 2005 .Net. My software keeps a log file. If the applications encounters an error, it writes to this log file. Is there a way I can easily produce what sub, function, or block of code that produced the error?
Example:
Sub MessageUser()
Try
msbox("Hello")
[code]....
Since msgbox is spelled incorrectly this will produce an error. I want to know what sub caused the error, in this case MessageUser.
Is there a more elegant way to structure the following code, which takes a comma delimited string containing certain values in specific positions and assigns the values to the properties of an object?[code]...
View 5 RepliesHow to get the active connections like these examples does I just want to keep it simple but basicly i want to get some information about the network connections that are open like these examples does
View 3 RepliesI just signed up today, and i apologize if i posted in wrong section.It's my first time using VB or VSTA, I a have no programming knowledge.I'm creating an infopath timesheet, and im trying to have it set up to grab the persons name and manager from AD.
I read from a MS site on how to do it, but it was not clear enough for a beginner. Site: Adding User Information from Active Directory Domain Services to InfoPath 2007 Forms Now, I've taken a screenshot of what i did, but i really need help as i have to have this set up by this week.
[Code]...
How do i set the active cell by code?
Lets say after cell(0,0) has been edited. On the cell Leave event it must set the active cell to be cell(0,4)
Currently working in VB 2008 Pro. I have a web site connected to an SQLExpress database. I have a databound form that needs to calculate some basic math. I have a button Click event in code behind file, when I try to enter code intelisence not active and fields not available. I tried to work the math in the select query SqlDataSource, but form would not update only insert.
View 1 Replies