Do All Programming Languages Use Static / HEAP & Stack Areas To Store Memory
Apr 9, 2012
Do all programming languages use the Static, HEAP, & Stack areas to store memory? Does understanding this help me with debugging in any way? How do I query or access the memory in .NET would I ever need to do that? Or the memory addresses?What keywords would I type into Google to get more on how the .NET CLR uses memory?I'm learning Java and am trying to compare .NET and Java and how memory management differs and is similiar.
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Oct 13, 2009
In your actual programming experience, how did this knowledge of STACK and HEAP actually rescue you in real life? Any story from the trenches? Or is this concept good for filling up programming books and good for theory?
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Feb 24, 2011
Why use VB over other programming languages?
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Jul 30, 2009
i want to know if vb.net is best or better to be used in making a website compare to other programming languages?what are the advantages of using vb.net?i will start to study about vb.net for our thesis project.my group thesis project is about making a website,an online hotel billing and reservation system.
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Dec 14, 2011
I'm learning delegates in VB.NET and am confused about delegate types. In reading about delegates, I learned that delegates are a data type that can refer to a method with a particular kind of signature. So in the same way that a String can refer to characters, a delegate can refer to a method (for instance) that takes an integer as input and returns an integer as output. But in playing around with delegates, I found that this was not the case. The code below compiles and runs--even though I don't obey the 'typing' in my delegate signature. I'm confused. Am I missing something?
Public Delegate Function myDelegate(ByVal i As Integer) As Integer' int in, rtrn int Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim md As myDelegate 'should be of type int in, rtrn int md = New myDelegate(AddressOf squared) 'allows assign to string in, string out
[Code]...
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Sep 1, 2009
How to find shift and rotation between same two images using programming languages vb.net or C++ or C#?
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Jan 30, 2010
I would like to add a picture on my form, e.g., a map of Europe, and i wanna be able to click on UK or France etc. Each country will be programmed in doing something else. What i wanna do for a start is to make my map active so as to can click on these different countries.
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Jan 4, 2011
Can we execute any string like "Button1.Text = Value"
Question arises from sql server where we can store a dynamic/static query in a string (varchar) and execute it and it will put the value to the button1.
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Jun 24, 2010
I'm an inquisitive .NET student without any commercial working knowledge and I have been puzzled by what exactlty are .NET languages meant for? Q1.If you look on job websites, .NET seems mainly used for web applications, not much for Windows applications? (My dream job is to develop standalone small Windows applications.)
[Code]...
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Nov 27, 2010
visual basic.net is case insensitive so it allows the coder to write without caring or remembering the casing of variables. it also relieves from the 'undeclared variable' errors if you use the variable in another case than the one used in declaration. The fact that its line termination is a line feed makes it even more readable unlike C# or c++ that need good care in the casing and contineous war with following up with the {}, matching them and figuring out which is for which.my question is what are the advantages of c# over vb knowing that both get compiled to MSIL so there is almost no performance difference between the two languages?
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Apr 21, 2011
I am reading data from wordpad one by one which records the sale of grocery item by barcode. I want to store it in memory so that after reading the whole file I can calculate the total number of the same items sold by comparing the bar code.
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Feb 23, 2009
Is it possible to store data in memory or a temp file so that if my application crashes information such as text boxes can be restored?
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Jul 2, 2009
I have been making an rpg that i have been programing to be event driven, so the last step at this point is the items... i tryed using dictionary to store all the items but this kinda failed(Im not shure if dictionary is good idea for something like this any way). well i know how to hard code the items but i dont want to do this(Event Drivien is better). So any ideas on how i could store the items?
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Jul 4, 2011
I need some informations to do my project. From webservice I get mye data as a List and this is stored in my application in bindingsource.datasource. The list do have many properties which displays as columns in the datagrid successfully.But my problem is how do I store the data in my local memory? You might say just make some local dataset or datatable....,but how do I convert the list to datatable? Or how do I convert bindingsource.datasource to datatable?
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Jun 12, 2011
I need to store a single string into Memory for later use on different pages to be able to create a log file for my app.
so on my 1st form(Login Form) i need to pass the Username to Memory and then read it from the memory later on on different pages.
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Feb 24, 2010
How can I create a circular buffer on the heap in VB.NET ? This would be used for audio playback via P/Invoke to winmm.dll waveoutopen and waveoutwrite to support development of a software synth. I currently use the marshall class to build a regular array of bytes in the heap.
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Mar 22, 2012
I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
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Mar 2, 2011
So strings are reference types right? My understanding is a reference to the string in the heap is passed even when you pass the string ByVal to a method.
String myTestValue = "NotModified";
TestMethod(myTestValue);
System.Diagnostics.Debug.Write(myTestValue); /* myTestValue = "NotModified" WTF? *[code].....
And what is going on under the hood? I would have bet my life that the value would have changed....
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Jul 8, 2011
I have a form that I want to draw an image on.I also want this to be an animation so I can't use picturebox.However when I declare the graphics it gives me the error: "Type 'System.Drawing.Graphics' has no constructors"
:I have already import 'system.drawing:
Dim g As New Graphics() 'I get the error here
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code].....
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Jul 21, 2011
I'm currently in a programing class for vb.net. It's my first true exposure to OOP and I'm looking for some advice on areas where I could improve. I was wondering if someone would be willing to look at one of my programs that I have written and offer advice on areas where I can improve and things that I made much more complicated than they need to be. I'm not looking for a line by line critique just a general look at things to improve upon in the future.
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Nov 5, 2010
In my "root" Views folder, I have a _ViewStart with the following code:
@Code
Layout = "~/Views/Shared/_Layout.vbhtml"
End COde
[code].....
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Feb 4, 2010
I have some code that I've inherited, and it's not the greatest in the world, but it works, with one small exception:
This page is a directory search, it has controls identified by record ID, however there exists a situation where there can be more than one result with the same record ID, thus making .NET barf. I had originally implemented a check that just didn't put the control on the page, if it was already there, but we've been getting negative feedback.
My question is this: Is there a way to put the same control in two places at once, for instance having if a user checks one, the corresponding one checks as well? I'm not terribly well versed in how .NET behaves, but I'll try to provide as much additional context as possible, if needed.
EDIT: Here's the updated code that generates the controls by looping over a datatable of results
Dim cbxSendInfo As CheckBox
Dim strCheckboxID As String = "cbxSendInfo-" & drOrganizer("ID") & "-" & i
Debug.text = Debug.text & " Loading Checkbox (" &
[Code]....
Where drOrganizer("ID") is the record ID, and i is the result record number.
I know this is a terrible way to do this, at least from my background, but like I said, this is inherited code that's been hacked to pieces.
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May 24, 2011
I need to save in my Database, records that have a big amount of lines, and like we know each text field of Access database, have just 255 caractheres to insert.
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Jan 14, 2010
i have an Ajax ActionLink which normally just returns a PartialView (which is just a UserControl ascx file) however, my needs have changed and i want to return another PartialView (so a total of two PartialViews) that occupy different areas of my page... of course i can't call " return PartialView("UserControl.ascx") " twice in a row consecutivelly... so my question is what would be an elegant work around for this?
how can i return two PartialViews WITHOUT wrapping these two PartialViews up in a larger parent view? i hesitate to do this because both items are in a different part of the html table which would require me to include practically the entire page in the parent view due to the structure of the table, and in this case lots of html data unnecessarily would be sent to the browser at each request - defeating the purpose of an ajax call/partial update (correct me if i'm wrong).
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Jul 23, 2010
Wondering if its possible to move the tabrect areas? For example:
[Code]....
I can already paint the tabs to the new location, but not sure if I have to override onmousedown or onmouseclick or what to have the tab selection area match up with the new painting. I haven't found any example of what I am wanting to do.
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Aug 26, 2009
i have a form that looks like this: i need different areas to execute different code, just as if there were buttons. how do i set areas of the form to be clickable in vb.net?
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Mar 27, 2010
[URL] In my Windows Form, I wanted the user to give an option to draw all over the form. But, if the user while drawing, enters the region 1, I want to assign a value to variable, say a=1. Correspondingly, if the user without leaving the mouse button previously enter the region 4, I want to b=1.After the user leaves the mouse button, I wanted to compare a and b. If both of them are equal, then Result=Done else not.
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Oct 22, 2010
I have a userControl with a picturebox in it. I need the areas of the userControl to be transparent and unclickable on the main form. After some searching Ive come up with this. [URL] but it doesn't seem to work. I have it set up so the usercontrol can be drag-and-dropped. but I dont want transparent areas to be dragable.
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Mar 10, 2010
I'm writing a small program that loads a folders contained file names into a list box, you then double click one of the file names listed and it appears within the programs text area where the user may freely edit it. I then have given the users options to export the data contained within the text box to a word template. What I'd like to do is add a button which the user can click in order to strip away all the html within the text areas content. I found a solution but for some reason I can't make it work. There are no errors displaying nor does the program crash out, it simply isn't doing what it should be doing.
The function I'm using is below:
Function stripHTML(ByVal strHTML)
'Strips the HTML tags from strHTML using split and join
'Ensure that strHTML contains something
If len(strHTML) = 0 Then
stripHTML = strHTML
[Code] .....
I've used the below snippet in an attempt to put the function to work in the text box.
Private Sub btnHTMLstrip_click()
' calls function stripHTML, applies to text box
richTxtBox.Text = stripHTML(richTxtBox.Text)
End Sub
So, its not working as it should?
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Aug 21, 2010
To reduce the size of some images I have, I'd like to remove the white padding that some have. The idea would be that if one has large white areas on the borders, then those can be cropped to save some space.
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