GC Free The Memory Associated To The Arrays "in Time" For The Next Loop ?
Jul 19, 2011
I have a system that must do massive array operations. Often I have many arrays with 1 to 2 million elements at same time.
Usually I create the arrays inside a procedure, so, I expect when the array variable goes out of scope, the array becomes available to the GC. But in the near future, I'll need to do these operations in a "looping" way, so I'll create and delete the arrays many times...
Will GC free the memory associated to the arrays "in time" for the next loop or it is best to "force" it in someway, like using the erase statement? Or maybe I'm completely wrong?
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Apr 12, 2011
Create large size files for a customer. The more we use ram memory as faster the program will run.
Is there a way to global find out in vb 2008 how much free ram is available?
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Dec 18, 2009
Am using lots of .Net and Indesign Objects in my StandAlone APplicataion.My Application is crashing because of memory usage [Memory allocation and deallocation].Will it deallocate if i use the following for the object: Object=nothing how to free memory of .net and Indesign objects and for which i will have to free memory.
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Oct 7, 2010
[code]When I run Module1, it creates the packet, fills in the fields, sends the bytes, and then crashes in P.Dispose when it reaches the FreeHGlobal statement.The error message is:The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))What do I have to do to free the pinned memory?
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Oct 29, 2011
We are busy to create large size files for a customer. The more we use ram memory as faster the program will run.Is there a way to global find out in vb 2008 how much free ram is available?
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Oct 23, 2011
I'm kinda new here, and I didn't know what forum to put this in, so I just put it here. I wanted to load an assembly to an Application Domain, use it, then unload it when I'm done with it. The assembly uses too much memory. The problem is: After I unloaded the assembly, the memory used is not getting freed. I was watching the performance all the time. The available memory increases only after I close the whole application. And that assembly is the only thing that uses a lot of memory in my application. Here's the code I used to load and unload the assembly: How can I free up the memory without closing my application. The memory was suppose to get freed up by simply unloading the assembly that uses it much.
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Apr 12, 2011
We are busy to create large size files for a customer. The more we use ram memory as faster the program will run.
Is there a way to global find out in vb 2008 how much free ram is available?
View 4 Replies
Jan 1, 2010
at the time of recoredset movenext out of memory error occured in run time data have 3800000 lakh recored
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Feb 11, 2012
Once i allocate arrays is the memory allocated for them immediatlyy or once i add data to the array? like say i create an integer with 400 million arrays (lol) would visual basic allocate memory immediately for each of the 400 million arrays or once there is data allocated to one of the 400 million arrays, say when i put the number 4 in the 100th array.
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Jul 2, 2009
My motive to prepre a application which can calculate free time of the team which handle. I have written a code which updates the username and current time in an access database. How can i run the code on windows lock event.
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Nov 23, 2011
I am constructing a program, i am new to Visual Basic, but i have past programming experience. I was wondering if anyone knew how to form a loop that could...lets say calculate the answer when two numbers are added together,and it would repeat this thousands of times, etc. And if there is a way, would it be possible to calculate the time taken to complete this loop.
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Nov 23, 2009
I need to loop through 2 different arrays.(Visual Basic)If I do a loop within a loop, will I get the results I need?For each order in ShippedOrders and For each order in UnshippedOrders........
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Dec 27, 2011
For perspective, pretend your trying to print an array:[CODE..]
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May 20, 2009
I have 5 arrays, named array1 array2 array3 array4 array5. They are integer arrays each with 5 elements in them. I want to access all the elements in all the arrays using a for next loop,the pseudo code goes something like this:
for i = 1 to 5 'this loop calls each array
for j = 0 to 4 ' this loop calls each element
if array (i,j) then
[Code]....
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May 7, 2009
I'm new to this, so sorry if my question has been asked before. I have searched but have not been able to find, or perhaps recognise, an answer. I am using visual studio 2008 and creating an app in vb.net.
I have 4 arrays named:- account1 account2 account3 account4. They all have 4 elements.I want to assign values to the elements in the arrays in an efficient manner. I thought two for next loops would do it. [code]....
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Apr 3, 2012
What's the best way to do this in sort of thing in VB:
[Code]...
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Jun 15, 2010
I've got a multidimensional array set up like this:
[Code]...
What I want to do, is use a for each loop to add the strings of the array into a ComboBox.
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Jun 17, 2009
I am trying to port a program I wrote with old VB 1 and I have many control arrays in the program, and it was so easy to do this in older versions of VB, now I am trying to find how to do this and all the answers I have found are a major productions, to replace something that was so easy to do? I would think that microsoft would make programming easer with each new incarnation. instead they are making it harder. doing away with the DATA and READ statement, now it is much harder to fill an array with a loop, now you have to enter each item in an array ONE by ONE. they did away with the ON statement, I had several ON statements, I had to make complex Select case constructs. to replace a simple one word statement?
To make an array of controls in OldVB all you had to do is Name a Second control the Same as the First, and a dialog pops up and ask if you want to make an array, you click Yes, and that's it, what could be easier than this?
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Jun 12, 2011
Attached is a visual representation of My Array that was used in my VB6 program the dimensions are:
CODE:
I am using an ACCESS DataBase to populate the array.
Using the For Next Loop I can access any position within the array such as a individual cell or group of cells. Also using the Step Keyword of the For next loop I can select a group of cells to manipulate based on the Step factor. This worked well for me in VB 6. I am now migrating to vb 2010 and cannot fine documentation as to how this would be done on zero based arrays in Vb 2010.
In VB 2010 I see no reference to the Step Keyword nor examples of how it would be used with zero based Arrays.
A example of my use of the step keyword is:
CODE:
Any of the above loop setups works for me using VB6 Any Documentation or code would be use in my vb6 to vb2010 migration?
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Aug 15, 2011
According to the language specification guide for VB.NET Section 10.9.3. The enumerator expression in a for each loop is copied over into memory. If I have a list of 10000 objects that list will be in memory twice for the code below?
dim myList as new list(of bobs)
'put 10000 bobs in my list
for each x In myList
'do something
next
If I were generating the list from a linqQuery or some other such query it would make sense to generate that list at the for each loop statement thus not having the list in memory twice for example.
for each x in myList.where(function(x) x.name = Y)
'do something
next
If the LINQ query is unreadable on the for each loop, do I forgo readability and just put it on the for each loop declaration line? Should I declare the list in its own variable and just bite the bullet and have the list exist twice in memory?
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Apr 15, 2012
i have a array set up, and i need the array to be global, but i can only get vb to accept it in a button, in addition, after the loop is completed, i am trying to pull a value from the array and display it but am getting an error.the code is as follows:
Public Class Form1
Friend staten As String
Friend statea As String[code].....
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Feb 17, 2009
how to do something similar to what was a control array in VB6 in .NET? I would like to be able to fill the contents of several text boxes using a FOR NEXT loop or something similar..... corresponding the contents of an array with the texts of an equal number of text boxes.
[Code]...
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Nov 27, 2011
I need some guidance on a little program I'm making (one that I thought would take a couple of hours from start to finish, it's been days now ...) that determines all of the proper divisors of any given number up to the maximum value of a UInt32.
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Dec 10, 2011
I have an .exe console application that when run, will do its thing and then close.
Q1: How can I time that run? (accurate, in milliseconds)
Q2: How can I see how much memory was used? (accurate, in bytes)
If MyPost Is Helpful Then MarkAsHelpful() ElseIf MyPost Is Answer Then MarkAsAnswer()
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Oct 16, 2011
A few years ago I have been busy creating this application but it didn't succeed, now Im coming back to it and similar problems occur. Basically I use SetPixel on a given window to draw a line, work fine, but the line goes away as the window redraws itself.The problem: I have been putting timers and threads on it to make sure the line is being drawn. Is there any way to make a loop to make a certain thing happen about 10-30 times without taking in too much memory/CPU?
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Mar 20, 2009
[code]...
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May 28, 2009
Is there any way to loop through the applications that run at a time (the application list from task manager) and get the application's caption?
At a moment I have two instances of "acad.exe" but they will have different application name and I have to choose one of them, but I don't want to close the other one.
If I use the process list I get only the "acad.exe" name and I cannot differentiate between them.
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Sep 2, 2009
The code below finds a string from a text file and, if the correct month, - Monthcheck1, adds it as an item to an unsorted ListBox. I want to run through the text file again to find data for the next month. If I repeat this code for MonthCheck2, nothing is added. My question is: What is the convention for looping through the same file a second or third time?
[Code]...
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Jan 24, 2012
[code]...
I checked the contents of the array at the end and it only held the last records within the text file, which suggest that it is overwriting the array, how can i prevent this?
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Nov 3, 2009
So I'm kind of new to VB and am just playing around with a little project, I currently need a loop that is constantly checking the systems clock to see if it's equal to a certain time.
While Not myTime.Hour = 24
If TimeOfDay = newTime Then
nfi.ShowBalloonTip(15)
[code].....
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