I just wondering is there any faster way to save a data into a database. Lets just say i have a datagridview that contains 10,000 records. To save all of it you will use a loop right but it will take a several minutes or maybe a seconds. Same with a datatable right.
View 6 Replies
I'm receiving a lot of data at the rate of 19200. I'm using read byte to assemble a buffer and process it. When I receive certain data I need to reply to the sender. I noticed that my replies are not fast enough. So I did a test where I unplugged the sender and noticed I was still receiving data! That I found was because the serial port buffer still had data from the sender that I didn't process. Anyhow I'm using Visual Studio 2005, the serial port object. How can I process the data faster. Would something like SerialPort1.ReadExisting or ReadLine work faster?
View 4 RepliesOne of the time consuming factors of writing the DAL is adding and assigning paramters of teh stored procedure if ther are more than 10 parameters and must link more than 3 tables this process will take a horrible amount of time..
View 10 RepliesI have a simple multithread application that stores updated data from a list of websites. After each thread gathers data, it then store the data into the same text file. I am now thinking of having each thread store the data directly into a arrayList, and after a certain amount of time past, store from the arrayList to the text file. Which situation would enable the application to complete its task faster?
View 1 Repliesmodify code to insert the data to MS SQL and save changes when click save button for the second time?
View 14 Replieshow to code for the save button in vb.net datagrid view by using insert into sql and update sql statements (it should be able to insert & update the data grid and save the changes) when the save button is clicked .
View 2 RepliesHow to save all the data displayed in DataGridview( 2 column, no primary key) and have a button and
View 7 RepliesI am working on desktop application. I had created number of dynamic textbox and label and I want to save that data on clicking the save button.
View 4 Repliesin my form i have 4 textboxes and i want all not to be empty while saving the data.I have put condition in save button,when user presses the save button to save data, to check all the textboxes not to be empty. My question is that, i want to focus to that particular textbox which is empty during saving the data.
For example: i have txt1,txt2,txt3,txt4 as textboxes in the form if txt1 is empty while saving, the focus should switch to txt1 rather user himself have to go there.
how to save data (for example some text that user type [as password etc]) and save that password on same location where is application. After saving I want to have also Load option so we can load saved data.
View 7 RepliesI've written a very simple program that writes a tiny "config.cfg" (text) file to the computer (using StreamWriter), and a second program that is supposed to read that data back.
Unfortunately, it appears you can't save to the same folder as your program under Win7 ("Program Files (x86)" is a restricted folder.) So instead, VB automatically saves my data to the "C:Users(myname)AppDataRoaming..." folder. This is annoying, but tolerable.
PROBLEM IS: How does my second app then FIND my data file (without doing a time-wasting drive search every time the program is run?)
My code:
' Program #1:
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Dim FileWriter As New StreamWriter("config.cfg")
[Code].....
I am trying to read and save data into a access Database but using the rows and colunms valeu can
View 1 RepliesI have three tables under one database. I'm using the built-in Navigator control for now until I get this figured out, but I'm using a button command instead of the built in navigator button. I need the "Save" button to save the data in the text fill boxes to save to the corisponding table. I used the drag and drop option to drop rows from each table to the form. See code:
Private
Sub Button1_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
You'd think both are the same. But maybe it's the compiler that Microsoft has used, but I've noticed that when compiling two very small programs, identical logic. VB.NET uses more IL instructions.Is it true than that c# must be faster, if only because its compiler is smarter.
View 6 RepliesPossible Duplicate: Is C# faster than VB.NET? Which one is faster, C# or Vb.net ?
View 2 RepliesA long time a agp I settled into a listview as an indicating device. I do not use pictorial modes or graphics. Just listing and multicolumn listing.I am also a performance bug and I have written realtime monitors for monitoring cpu activity in real-time and normally rum them starting at bootime. Lately I have found that the listview throws away time. In a tight loop, the list view does not take all cpu time available and the listview is relatively slow.
Does anyone know of a control like the list views only it's faster? Multi-colored and multi-columned are musts.
I have a simple application, a form with two datepicker( Datepicker1 is for startsearchdate, while datepicker2 is endsearchdate) to filter out any record that not in the range. The source of the record is readed from a rtf file.The record is in format as showm below.[code]...
View 9 RepliesMy co-worker said that in a previous interview, he learned that foreach is faster in VB.Net than c#'s foreach. He was told that this was because both have different CLR implementation.
Coming from a C++ perspective, I'm curious on why this is and I was told that I need to read up on CLR first. Googling foreach and CLR doesn't help me understand.
Does anyone have a good explanation on why foreach is faster in VB.Net than in c#? Or was my co-worker misinformed?
I have a directory with more then 350.000 files in. I need to process every single file and move them to an other folder. When I use the dir() method it takes a few seconds before if it returns the first file found.
dim foundfile as string = dir("d:")
In the documentation there is this:
"The My.Computer.FileSystem Object gives you greater productivity and performance in file I/O operations than the Dir function. See My.Computer.FileSystem.GetDirectoryInfo Method for more information."
But I can't find any method that is faster then dir, and gives the same result. I can't use this method below because it takes for ever to load......
For Each foundFile As String In My.Computer.FileSystem.GetFiles("D:")
Next
It just does not work fast...
When I use the Dir() method it takes like 5 sec, and it uses 100% cpu... it is just not a option. How do I get the same function as the dir method but better performance? (I use visual basic 2008).
I create a CSV file by getting a datatable then looping through that datatable and writing eachline of a CSV file. My data source usually has around 65,000 rows in it. This process takes several minutes to download from the browser. The problem is that locally and on dev it doesn't take too long, but on the client they usually timeout.
Is there a faster way to generate this file?
Function GenerateCSVFile() As String
Dim stuPro As New studentProvider.StudentProvider
Dim emailCenter As New EmailCenter
[Code].....
I need to verify if a certain user exist on my asp.net site.I want to know if which of these two functions is more efficient, faster and better compared to each other and why.
[Code]...
I worked in a role and functioning properly. The problem is that it is a bit slow for use in many images would be very slow. I read online that with stride and scan0 and working in memory with buffer can be made faster, but i donīt understand anything . Does anyone know how it works or how to make my code run faster?
[Code]...
I'm converting a process from VB 6.0 to VB .Net. The process copies a table from one database table to another database. In many cases they are not linked so a "Select * into Table2 from Table1" is not a solution. Also the source table may be a temporary global table that has a unique structure. The current process reads the source table into an ADODB recordset, obtains the columns attributes to create a new table, creates the new table, builds insert statements from the source table, and then inserts the rows into the new table. I'd like to take advantage of any .Net features that may be more efficient than that. Can anyone point me in the right Direction?
View 1 RepliesI am loading images from the internet. I am using PictureBox1.imageLocation() but it takes a while to load the image. Is there a way i can load the images faster? it shows an error icon before it displays a picture...how can i get rid of that?
View 6 RepliesIm using RichTextBox from Visual Studio 2008 to show various RTF content and it is slow. I mean really slow. Is there any way to improve the loading speeds of LoadFile function?I tried to load directly from memorystream (without saving file to disk) but it's still slow.I read plenty info about how RichTextBox is slow and all. Has there been any improvements in Visual Studio 2010?
View 5 RepliesIs it possible to make a vb.net application faster Through code like using characters that the Computer already understands Like coding in certain areas through y x (math) etc. Will it be More faster since the compiler don't have to really do much work But its still must be VB.NET
View 19 RepliesOk well i have a code that makes a bitmap the size of 9000,9000 but it makes the program run so slow. how to make it run faster?
View 5 Replies*i have a vb.net application that plots 16 plots immediately, the plots data are realtime. the 16 plots must draw the points at the time they receive them (must be no delay), to do that 1- i made a timer with ticks at 50 ms.2- at each timer tick call the plotting function 16 times (with a graph name as parameter)like that:
[Code]...
What I'm trying to do is iterate through each pixel in a bitmap, and get the color value of each pixel.I've tried using .getpixel, but it's fairly slow. On a 640x480 image, it takes roughly .35 seconds to go through it. Which can add up if doing many pictures.
[Code]...
My application is very very speed esential and even a microsecond matters.I am using semaphore(1,1) at varios places. I think it can be easily converted into mutex.But I want to know if it will be advantageous or its one and the same thing as far as speed is concerned.
View 1 Replies
