IDE :: Large List Crashes When Added To Project
Apr 12, 2011
I have a very simple class that crashes the VB.NET IDE when I added this list. Granted this is a list with 10,000 items but it crashes when I added it to the project. When I delete it with a text editor outside the project does not crash. I have not installed SP1 based on the comments not sure if this is a know problem or not. I can post the project its fairly small as its just text.
Private Shared ReadOnly _mdmCodes As List(Of [String]) = New List(Of String)() From { _
"AAAE-24422", _
"AAFP-02872", _
"AAGG-25572", _
"AAGN-16807", _..........
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May 23, 2012
There is a very strange problem with a Windows Service I am working on that I would like to understand why it occurs. The service loops every 5 minutes and then within that loop it loops through keys containing webservice URLs that are numbered such as:
<add key="URL.1" value="http://dummy1.com/Service.asmx"/>
<add key="URL.2" value="http://dummy2.com/Service.asmx"/>
<add key="URL.3" value="http://dummy3.com/Service.asmx"/>
The code that does this check is:
If String.IsNullOrEmpty(AppSettings("OM." & intCount & ".Name").ToString) Then
When it hits a key that doesn't exist an exception is thrown and the service stops and waits for 5 minutes until the next loop.This usually works great but every week or two the Windows service will crash on that line without any Exception. The application log has a line from before that line but nothing after, none of the Try Catches are hit (the main one is catching the base "Exception" class).In the Event Log for Windows is the following:
Faulting application name: MyService.exe, version: 1.1.2.0, time stamp: 0x4fa22a24
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0xe053534f
[code]....
The weird part is that this line of code is executing fine 300 times a day for at least a week which is around 2000 times before that one time it causes a full crash of the application. why this is occurring? I have changed that line of code to not rely on Exceptions and it has been working fine for a week now with no crash so could be something to do with too many Exceptions - maybe causing a stack overflow?
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May 5, 2010
For reasons that are beyond my control, I have three Projects. Projects A and B reference project C. Project A references project B so that it can open a large form in project B. I now need to open that large form from project C, but VB won't allow me to add a reference from C to B because that would create a circular dependency. I found a way around it, though. I created a Timer in A, and when I opened C from A, I passed in that timer. When the user performs a certain action, I enable the Timer from A, and this causes C to open B for me.
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Jun 4, 2012
I am creating a VB application in Visual Studio 2010 that installs some SQL stored procedures. These stored procedures are encrypted otherwise I would just supply my clients with .sql files to create the stored procedures.
The install script that creates the stored procedure is 1500 lines in length and has been formatted in the way VS 2010 requires multi-line literals to be in:
"First Line" & _
"Second Line" & _
"etc..."
[Code]....
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May 21, 2009
I'm trying to move a project from my old laptop to my new laptop. But I'm running into a problem: whenever I open the project on my new laptop, it crashes!I can open other projects on my new laptop, including some copied from my old laptop. I can also open the project in question on my old laptop. So the problem must be some combination of things in the project, and the fact that it was moved
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Mar 3, 2011
My problem is with Splash screen I added it to my project but after running that project it displays forever until I clicked on my main forum. please help me how to give a particular time to splash screen i.e., 2 seconds.
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Jan 13, 2011
I am used to C like languages such as C#. I added a list box with a list of names. In the code behind I added the below code. When I run the code I am getting the MessageBox but it will state "UserName favorite color is " but does not show the color. I thought it might be misspelled or non-matching names but this is not the issue due to the names being correct.
Public Class Form1
Private Sub lstData_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstData.SelectedIndexChanged
'Declare Variables
[CODE]...
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Feb 2, 2012
I have written a program in VB6 which i have subsequently put into a dll so i can write a VB.Net front end.I have added the dll to the .net project and tried calling it but it is throwing up a security exception.Imports Sbank_Dll_v2
Class Page1 Private Sub Button1_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button1.Click
[Code]...
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Apr 5, 2011
I'm wanting to create a .chm file for a large project I've just completed.
Is there a easy way to create one of these? one that has Contents, Index, Search and Favourites section.
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Jun 10, 2009
i added a specialized stringdictionary to my project. i can save to it, + on form_closed it has the correct count, but when i reload my project the stringdictionary is always nothing.i read somewhere on the internet that i need to make the setting serialize as binary, but i can't see how i should do that? heres the Settings.Designer.vb file. where should i specify serialize as binary?
[Code]...
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Dec 15, 2009
The company I work for has a VB6 project that is using an ACCESS database.The project consists of seperate modules such as Accounts Payable, Payroll, General Ledger, and Inventory.At the current time each module is a seperate project in VB6 and the EXE files are called when needed.In total there are about 1300 forms in the project.We are moving from ACCESS to Sql Server and from VB6 to VB2008.The question that I (we) have is as follows; Should we continue to keep each module seperate and call the EXE's or should we create one large project?What are the pros and cons for each way?Is there something written that explains the advantages of either?
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May 12, 2010
Not sure if I'm posting this in the right area, but here goes anyway. I've been working with sql databases for practice, but can't seem to get around one thing; after I add it as a data source, I can't go back and add tables.
I start off by going through the project, then add item, choose the service-based database, and go from there. I add the tables, then go in and add it as a data source.
After I've added it as a data source, I can go back into the .mdf form and add lines and edit properties, but it wont update in the data sources. So, I can't add it to the form.
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Nov 13, 2009
I'm working on a larger VB application (framework v3.5) where the compile time continues to get slower and slower the larger it grows. It currently takes about 7 minutes to compile just the extensions project. We have other similar projects in C# that don't experience the slow compile time.
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Nov 14, 2009
In the project I'm working on I've been using some gif images to define one or more texture brushes. I have the images in a folder and I know how to define the texture brushes as follows.
[Code]...
Let's say I add the images as image files to my application using "Add Existing Item". Is there a way I can define the texture brushes with the images that have been added to the solution in that way and if so could you show me the exact code.
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Aug 9, 2011
I have a large list of keyword and I want include this list in a listbox .How can I do it?
I tried by paste the list in the collection control but by this way the listbox allow only a small amount of keywords.
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Jun 28, 2011
I've created a database in Access 2007 and connected it to Visual Basic 2008. My database have tables Coachee and Coach. Details of Coachee are displayed in one form and there's a button that when clicked will show details of the Coach of that particular Coachee in a another form. If the Coach is not in database, user will be prompt to insert a new Coach record. Problem is, when saved, the newly inserted record will not be displayed and i have to exit and rerun the program, only then the record will be displayed.
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Aug 25, 2010
i have created a batch file and have added it to the project using add items. Basically what i am aiming at is to execute this file on a button click action. I am using System.Diagnostics.Process.Start("hello.bat") command to run this file i have changed the build action to resource for this batch file. But when i run this program, it is not able to locate the batch file. I am required to give a relative path as the path my vary from machine to machine. how can i make this file accessable using a relative path?
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Aug 4, 2009
I'm trying to have it so theres a big list of items for example:
item1
item2
item3
[Code]....
I was thinking a list box? but I'm not all too sure on how to use one. I'd like the user to be able to scroll down through the list OR use a search. How could I search the list?(Id use a textbox as what to search for and a button to search the list.)
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May 25, 2011
i need to do quick selection and adding of large list in listview vb.net 2005, say 100,000. most people have suggested virtualmode, but i will be removing and adding items in these at different times. i thought of using api, as it is somtime faster,
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Dec 22, 2009
I am having trouble adding a list box to a form that I have added during run time.[code]...
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Dec 7, 2011
I am taking a VB course for school and I am having difficulty with a program I'm making.
The program is essentially a shopping list that adds the cost of everything up.
But I cannot get an additional item added to the Text file to add with the list.
Ive attached a screenshot of the program and my code..
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Jun 14, 2009
I am just added new project class library to make dll file. when i write the first line i got this problem
Dim objStreamReader
As
New
StreamReader(Server.MapPath("TextFile.txt"))
name 'server' is not declared
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Apr 12, 2010
I have the following code to generate combinations of string for a small list and would like to adapt this for a large list of over 300 string words.Can anyone suggest how to alter this code or to use a different method
[Code]...
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Feb 7, 2011
I am currently trying to create a program to list a large group of numbers for me. My final goal is to have every 2, 3, 4, ..., and 9 digit number containing only "1" "2" and "3". I thought I would go about this by using the following VB.NET program and then copying it into a text editor, and using find & replace to eliminate all other numbers.
Public Class Form1
Dim Start As Integer = 333333333
Dim Counter As Integer = 333333333
[Code].....
it fails due to the massive amount of processing that needs to take place. However, adding the intervals requires a great deal of time for each number to be displayed without any crashes.
Is there some way (in VB.NEt or another language) to get the number list I want in a short (an hour or less) amount of time?
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Mar 13, 2012
I have added information from a file to be displayed in a list box. I am displaying two pieces of information per line (reward and reward cost)They are being displayed correctly, but they are not aligned properly, for example:[code]I have used a fixed string length when saving the names to the file (.dat)I am just wondering if there is a function that would sort the alignment out?
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Sep 30, 2009
I've created a custom control that I insert into my window with the following code
Code:
<controls:ListExpander Text="Class Diagrams"></controls:ListExpander>
The control in question contains several subcontrols, among others, a list. How can create the setup, so I can specify items that should be added to the list?
Code:
<controls:ListExpander Text="Class Diagrams">
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
</controls:ListExpander>
In which case the SomeItem objects should be added to the list in the ListExpander:
Code:
<ListBox Name="lstItems" Background="LightGray">
<ListBox.Items>
// Items should go here
</ListBox.Items>
</ListBox>
I'm quite new to WPF, but I suppose it's something along the lines of creating a dependency collection on ListExpander that takes object of the type SomeItem? I simply want to be able to give the control a few arguments which it can translate into items in the listbox contained within the the control.
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Nov 19, 2010
i want to insert checkbox text only if they are checked.[code]This code will add all checkboxes whether it is checked or not..so that only checked checkboxes would be added in array list
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Nov 29, 2010
I have an XML node which I am adding to a generic list of xml nodes:
ListXml.Add(myXmlNode)
Now whenever I change the node afterwards, all members of the list turn into copies of the node. Why would the list keep track of this and more importantly how am I supposed to 'detach' my work node from that list?
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Nov 1, 2011
What I am trying to do is to instantly apply a filter to a large list of data such that the list is updated almost immediately regardless of the number of items in the list. I have this working using a listview right now but it is far from instant, a list of 5000 items takes over a minute to get through. What I do currently is to maintain a cache of my data that my listview entries are based on. When the user selects a filter I parse this data one item at a time and determine if each item should still be displayed in the listview, if not I remove it. The complexity of determining whether or not a data entry meets the filter requirements is O(1), but just getting through each element in a loop takes significant time, and so does updating the list view graphically at the end of the process.
I have considered using a datagridview instead, using a database connection. I have never done this before and my main question here is whether this would allow me to do what I have described. With the database I could form an SQL query to return only the items that meet the new filter requirements... but would the data in the form update immediately, or would there still be significant delay?
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Nov 21, 2007
I just converted my project from VS 2005 to 2008 and started getting really bad lag only when intellisense iterates my dataset objects. The cpu maxes out one of my cores for about 2-3 seconds each time the intellisense list pops up. Is this a new feature of the 2008 ide?
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