I have a number of FTP routines all based on the code below. Why does this take 15 seconds to run the first time? [Code] If I use an FTP program like FileZilla or CuteFTP to connect to the same FTP server they make a very much quicker connection. Any ideas?
View 10 RepliesI'm currently developing a chess program. In my program, the problem I'm currently having is the slow drawing of the initial board. Here's part of my _gameGraph.DrawImage(MyResources.Marble_White, New Rectangle(x, y, 70, 70)) The code here draws the black & white squares using a for/next loop. I later use another for/next loop on the array holding the piece values, which uses the same type of function to draw the pieces on top of the squares. Both the pieces and the squares are .PNG images.
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I am looking for a great VB.NET forum for support on the newest 2010 version.
I have a large project currently Compiled on the NET 4.0.
I have also ran it on 3.4, 2.0, and, 1.1..
I am trying to read a text file on a server which has ONE line about 12 charters long.
On the initial request to read the file I have about a 7 second delay before there is any further action. All subsequent request are instant considering I do not close the program.
I have searched and searched Google and read some older post from this site. Most refer to the proxy setting and say setting the proxy to NULL will fix this issue. Well we all know that this cannot be down in the newer version of .NET. I did not have this issue in .NET 1.1 using the same code.
Can anyone here tell me how to make the webclient avoid this delay the first time it hits the server?[code]...
i know this question was asked a couple of years ago by TheMinistered .. but i cannot find an answer, and i have exaclty the same problem (using both VB6 and VB.net 2003) :
When I attempt to connect to a remote SQL server via ADO it takes almost 20-30 seconds before Open returns. I don't know if it's something I'm doing wrong... here is my connection string/code:
Private Sub Class_Initialize()
Dim strConnectionString As String
Set m_objConnection = New Connection
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I'm using VB.NET 2010, and Microsoft SQL Server 08 Express. I've never done a data bound project before so forgive me if I have no clue what I'm doing.
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I am using a form with a combobox which is populated from an SQL database table. This works OK but is it possible to leave the box blank on the form until a value is selected.By default the box has the content of the first record.
View 4 Replieshow do i set my initial value for textbox as blank. I tried to I load my textbox a data coming from my database but what my problem is that I need to set my default value for textbox as blank because everytime I load the forms the textbox will be filled immediately with data. This is how I bind my textbox and combobox after loading from database.
cbxJoblvl.DataSource = myDataSet.DefaultViewManager;
cbxJoblvl.DisplayMember = "Joblevel.lvl";
cbxJoblvl.SelectedIndex = -1;
txtLvlName.DataBindings.Add("Text", myDataSet.DefaultViewManager, "Joblevel.lvlname");
How to make program cuts Internet connection without appearing in the taskbar,I used the following methods, but did not succeed
1. shell("net stop dhcp") appear in taskbar
2. shell("ipconfig /release") appear in taskbar
I have a datagridview that takes time when loading, and once loaded, is also very slow when using the scroll bar to see the other rows.[code]..
View 12 RepliesAfter I RemoveAt my payList, it appear very slow in edit form, but in new form no problem.How to make it faster. [code]
View 1 RepliesI was wondering if my database got way too much table for use the designer. Would be glad to hear experience from those that using L2Q with lots of tables. How much table your database have ? How fast is VB ? (fast, experiencing slowdowns, unusable)
View 1 Repliesits' only me, or is VS2010 really so slooow? This taking 50 seconds to open vs2010, 30 seconds to change from an small project to other small project.as a comparation, in the same machine I can open three different vb6 projects, each one in one different vb6 instance and each one takes "only" three to five seconds. of course I can maintain all the three instances opened all the day, sutching from one to other, debugging, changing, even generatin' exe files, without noticeable penalties.machine is Dell Vostro 1700 4 GB, two internal disks, Win Vista business, Intel Core 2 Duo T 7500 2,2 GHz. two years old.
View 4 RepliesWhen it comes to database connections what is the difference between closing a connection & disposing a connection? I'm hoping to gain a more technical understanding of what happens when each is called & the effect on the database.
View 5 RepliesI have created an app, that reads data from a .txt file, and compares it to data retrieved from a website. The only problem is that my program slows down and sometimes even freezes at specific points in the program. I don't understand why, because that specific point in the .txt file is no different then the rest of the file.
Here is my
Function vertaalGegevens(ByVal teller)
Dim webStream As Stream
Dim webResponse = ""
Dim req As HttpWebRequest
[code]....
I also tried making a different thread, but that became way to complex for this simple program.The text file i import is 1.5 mb big, and contains aproximatly 66,000 records that need to be run trough. These records are contained in a ArrayList. The word "teller" in the code stands for count, this value gets higher each loop. The loop is run outside this peace of code.I was thinking that maybe I didn't close the webresponse object, so I also tried webResponse.Dispose(), with no success.
I was sending some data to the server and i was getting only 200-300 kbps speed but when i tried from Internet explorer i was getting 3-4 mbps
I googled and found that these setting should be imprelemented
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I've tried using the VS 2010 beta to edit some real projects, and it is next to unusable due to performance issues. The cpu is more or less constantly at 100%, and most often the code editor uses around 10 seconds to respond to any text input. If I introduce a couple of compile errors things get even worse. Are there some drastical performance improvements that are planned in the VB editor before release, or are there special things that might trigger this?
View 22 RepliesI have been using VS2010 without any issues, always on the same application. Suddenly within the last my solution has become unbearably slow when right clicking. When doing other projects, it is fine. The only thing I can think of that I changed was disabling the SQL Server debugging.It happens if I right click anywhere within the code editor. Everything freezes for about a minute and a half, then the right click menu shows up. Intellisense seems to work fine. It is only the right click.The project is fairly big, but it has been working fine. I am working on a 2 month old top of the line MacBook Pro (running Windows 7 64 bit in Boot Camp). I did do the patch Tuesday big batch of Microsoft patches in the last 24 hours...
View 2 RepliesI am using DataSet.ReadXml() to create a DataSet from the following XML file, so that I can quickly query it using Linq.[URL]..I then use the following object to create a DataTable which can be used as a dictionary, with a ConvertToFriendlyFormat function that takes an Emulator_Id and and a string that corresponds to a DicEntry node's StoredFormat attributed, and return the same node's FriendlyFormat attribute.
This does work BUT it is extremely slow (~11 seconds to call it ~220 times). I have been unable to figure out how create the DataSet when the object is initialised and just query the simple DataTable in the ConvertToFriendlyFormat call. I guess this is what is slowing it down?
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am new here. am using vb2010. I have a form with 3 panel. each panel have 10buttons. when click on button 1 from panel 1, it will show panel 2. Then on panel 2, when cancel button is click, it will go back to panel 1. My problem is, when go back to panel 1, all the buttons in panel 1 shows very slow. It shows one button after another.
View 8 RepliesI`m trying to write a small program which connects to a serial port at 115kbps and reads a stream of continuous bytes from a microcontroller. The program should then graph these bytes by time. Ideally this all happens in "real time" and as quickly as they can be sent.With a 50ms serial write delay on the micro the VB program keeps up fine, but if I lower the delay any further, say down to 1ms, the update can`t keep up and the serial buffer just grows.I wasn`t expecting the bottleneck to be the PC side so it`s likely my code is doing something wasteful. Or maybe it`s the graphics which are drawing slow?
Private Sub DrawGraph()
Try
Dim y As Integer = m_Y
Do
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I have a text file I'm trying to pull specific data from to make a report in excel and am wanting to know if my code can be improved or if I have something wrong. If it's apparent to anyone that I should be doing something elThis code does work but, very slow. These reports take up to 20 minutes for about 100 files so I am wanting to decrease the time somehow. I have attached the whole sub in a text file, it's about 900 lines long so don't think I should post all of it. This is one part that seems to take the longest:Partial code that reads the text into a string, then each line is read to find whether it holds the data or not. Inside this while loop, I am checking numerous lines to see what they hold and extract specific items. First I verify it's a interface by checking for "line protocol".
Dim str As StreamReader = File.OpenText(filefound)
While (str.Peek <> -1)
If txtLine.Contains("line protocol") = True Then 'Found an interface,
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I'm making a program that will print jpeg's.The way i have it is I have lots of forms with buttons and when you click a button it prints the photo and a databound label with a line of text.The problem is that i want the user to be able to click one and then click another button right after, to print another one, but as soon as i click one, the program freezes until the photo starts printing so the user cant click to print another one right away.Each picture is around 4 mb.Is there away to make it go faster?The pictures i'm printing are from a pdf file with text and images in it that were converted to jpg. Each page is another jpg. Is it possible to print directly from the pdf and would it be faster since the words are 'text' and not a 'photo'?
View 5 Repliesi know how to make a tcp ip connection using tcpclient and so on. But what i want to know, how to transfer file in a specific computer?
View 2 Repliesam using vb 2005 with an access database 2003 vb.net website (aspx page) i am try to put contact details in to the database with six text boves and one button (Button1) to submit the informaton in run time (aspx page) when i run the page no problems then i click submit no error but it does not send the information to the dadtbase.i put the code when i double click on the button here is my code could you plz tell what i am doin.
HTML
Imports System.Data
Partial Class accessall_NewCustomer
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I am using the following connection string to connect to a sql server on my network but having all kind of problemhere is the connection stringosqlconn.connectionstring="server=xxx.xxx.xxx.xxx,1433;" &"Database=LOS;" & "Integrated security=SSPI"I dont know if the problem is that there is no ";" at the last parameter like the others but I get the following error that shows in the file
View 24 RepliesHow do I make the connection to a SQL database (one to many), with VB.NET?
View 1 RepliesI am working on developing a simple console game in Visual Basic in which the "level" is drawn out after being read from a file.
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how to make connection with my database access with visual basic 2008.
View 2 RepliesI can't find the vb.net code to make PHP connection while read the script before it would redirect to mysql database. As I have store the local host in the php script with the username and password, so I would not need the code for mysql at this present moment.
View 5 RepliesI need to make a connection with an access 2007 database in VB 2005.[code]....
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