My application does some intensive tasks on a second thread, while updating the main form. I want to show how long these tasks have been running (increments every second), i've read timers can get out of sync and even fire off multiple ticks at once, so how can that be fixed, or what's a better solution for this?
View 3 RepliesI need to create a table with just 1 column containing times (starting from 4hrs) which increase in increments of 10 seconds for each row. So it needs to look something like this:
04hrs 00mins 00secs - 04hrs 00mins 09secs
04hrs 00mins 10secs - 04hrs 00mins 19secs
04hrs 00mins 20secs - 04hrs 00mins 29secs
.....
06hrs 59mins 50secs - 06hrs 59mins 59secs
This will obviously take a long long time to hard code so I'm looking to create it dynamically. Based on what i'm currently trying to learn I'd like to be able to do this using jquery or asp.net (vb) but anything will do as long as it works!
PFB the code for a search button where when a user enters a text in the text box ,it takes the keyword compares it with an xls which has 1600 rows and 16 columns with keywords.If the keywords match, it has to full the 3rd column where the name is specified.Its running but its taking more than 20-25 mins for processing.I knw searching 1600 rows and 16 columns will take time but pls advice if i can make this process a lil faster.
[Code]...
Actually, I am trying to find out whether the partno is existing in the database table or not and it takes long time in count = checkCommand.ExecuteReader statement
Public Function CheckProductNo(ByVal Partno As String) As Boolean
Dim count As SqlDataReader
Dim valid As Boolean = False
Using connection As New SqlConnection
[code]....
Recently, I've been running some tests with C++ and VB.NET to compare execution speeds. In the last thread I posted, I talked about how I had encountered the fact that C++ was executing just as fast as VB, but got that issue resolved. Now I'm hitting my head against another wall:I had made a DLL for VB.NET to test out this theory and compare in just one program side by side execution time of identical VB.NET and C++ code. But the interesting thing? VB.NET's execution time improved such that it was now exactly identical to the execution time of C++. Spending some time with the problem, I discovered that the "Target CPU" option in advanced compile options in Visual Studio 2008 was the culprit!
Since I'm running 64-bit Windows 7, I figured making the target CPU x64 would yield the best execution time. Wrong. Here are the results in execution time of a Windows Forms application for VB.NET,calculating all the prime numbers up to 10,000,000 and getting their sum.
Any CPU: 15.231 seconds
x86: 10.858 seconds
x64: 15.236 seconds
Below is the code I'm using, feel free to test it yourself:Public Class Form1
[Code]....
I was updating an old .aspx.vb script that was originally written with dynamically typed variables, like this:
Dim price I updated them to the following format (along with some IsDBNull checks to compensate):
Dim price As String After doing this to all of my variables, the script appeared to run noticeably faster. Is this a real effect of static typing, or is it just a coincidence?
Windows Application
Front End: Vb.net
Backend: Oracle 10g
I am executing the sql query to fetch values and showing it in my datagrid..and when i do that it works perfectly fine...and problem is that it takes 10 min for my datagrid to fill...so in between i want to show the execution time to the user in another form till my query processing completes..
My
Dim oradb As String = "Data Source=zorb;User Id=baady;Password=zacky;"
Dim conn As New OracleConnection(oradb) ' VB.NET
Try[code]......
I have a per-call WCF service that serves a number of clients. I'm looking to speed up the services by running some background processes so they don't block or slow down the main function of the services.
One example is that the main function needs to return a set of data, while the background thread needs to record some statistics based on the parameter(s).
Code:
Public Function GetAccountDetails(id As Integer) As AccountDetails
Dim retVal As New AccountDetails
Dim a As New Accounts
[Code]....
If I use this background thread to record the statistic it doesn't block the main thread from returning the data to the client.
It's been working well in test scenarios, but my question is, are there any dangers with leaving this thread to execute without Joining it before returning the data to the client? Could there potentially be any loss of statistic data? Could there be potential memory problems on the server side?
FIRST = arguments checked against each other
SECOND = arguments checked against each other but are irregardless of the FIRST arguments.
If (FIRST and (FIRST or (FIRST and FIRST))) OR (SECOND or (SECOND or SECOND or (SECOND and (SECOND or SECOND)))) then As the program processes this line over a million times during the execution, only FIRST or SECOND section is needed during an execution, never both. How do I make the program use only the section that's needed for the current execution instead of checking every argument every time? Is there a way to turn a string into an argument list for an IF...THEN statement? [code]
Is it possible to wait/suspend execution for a certain amout of time without hanging the main UI thread?
View 7 RepliesIf say in my datatable i have one column called order number and one column called line. Whats the best way to keep repeating the order number into everyrow, whilst incrementing the line number until i add a new value in the order number column.
So it'd go like this..
Order#______Line
4568________1
4568________2
4981________1
In a loop, i'm looking to add 1 to Var1's value everytime the loop goes.I've tried
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i need a 2 digit prefix that increments. 1 - 99.. after reaching 99 it will be 100, that what im supposed to trap. if must be a0 - a9, after then b0-b9 ...... z0-z9.
View 3 RepliesI have a program in accounting that is used by many clients and users at the same time in a network. Many modules have a reference no. like in the receipt that increments upon saving, it also Checks whether that reference no. is already in used.
However problem arises when the many users use the same module at the same time. My question is How do you manage incremental values on each client's PC? Their local system somehow competes for the next incremental no.
I want to create hypothetically infinite array lists each that can hold hypothetically infinite items. The name of the array list is "arraycalc". How can I perform a procedure that will create a new array list called "arraycalc1"... the next time after that the procedure is run and a new array list called "arraycalc2"...and so on and so forth.
View 6 RepliesI am looking for a way to make my code shorter, how can I implement a for loop to do this:
Public Class frmWhatevs
Dim arrOne(8) As Label
Dim ArrTwo(8) As TextBox
Private Sub frmb_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
SetaArray()
SetbArray()
End Sub
[Code] .....
I am trying to implement a progress bar which increments based on a For Next Loop. The idea being that the increment should occur prior to the next go around of the loop. I have a user control form called "Progress" with a progress control on it called "Bar". The Min Value will be 0, Max 20, and Increment 1.
For X = 1 to 20
Code Here
'Put Increment here>>>>>>
Next
I have put the following code in the in the UserControl below. However its not clear to me how/where I trigger the bar to increment.
CODE IN USER CONTROL
Public Class Progress
Public Property Value() As Integer[code]......
I am attempting to read the results from a SQL query into a List(Of) and I can see the List.count while adding items to the List increments, however in another part of my code when I am attempting to read the List the List.Count returns 0. My List is as follows:
[Code]...
I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).
I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?
read the COMPLETE email before giving me instructions.I say that because it seams like who ever is responding is only reading part of the email and responding.I have followed your instrutions and I still can not get myhello.vb to compile.
Both vbc.exe and mylello.vb is in the same folder c:program files
"C:Program Filesvbc.exe myhello.vb"
You stated that I should run command prompt as administrator and tye the same command as you do. what (as administrator) is. Please walk me through the complete process. Please do not tell me to run the command prompt as administrator because I do not know what that mean.I can not speak to my administrator. Also I attempting to compile a sample VB that came with the software, so using Visual Studio is not the solution.
Private Sub LoadData(Of T)(ByVal query As ObjectQuery(Of T),
ByRef result As IEnumerable(Of T))
If Connection.State = ConnectionState.Open Then
result = query.ToArray
Else
AddHandler Connection.StateChange,
[Code]...
In the above code I am trying to recurse the LoadData function when the connection is unavailable, I want to defer the loading to when it becomes available. The problem is the above code leads to a compiler error, since a ByRef param cannot be used in lambda expressions.
I have a simple dos command, I use to stop a java service which I am trying to execute within VB.NET, however it doesn't seem to stop my service.My DOS command which works is as follows:
NET STOP "Java Quick Starter"
My VB.NET attempt is as follows but it doesn't work:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Visible = False
[code].....
I like to clarify the doubt regarding vb.net programming. my question is as follows.1. While executing the vb.net program, whether it takes RAM space or Hard disk space.
View 4 Replieshow can we do remote execution in vb.net?
View 4 RepliesI wish to get my VB 2010 program to wait a few seconds after executing a command, and then exit.
For example:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'do.stuff
'wait a few seconds
[code]....
I am in need to delay the execution of a line of code, say, by 5 seconds. But by doing System.Threading.Thread.Sleep(5000)
the whole UI hangs and I don't want that to happen. Because I want to be able to display something in a Window that a user will be able to see. Does anyone know of an alternative of achieving this?
I have finished creating the code for my client/server application although both parts currently execute modules/in console(this was for testing purposes).I am now looking at making both parts of the program completely invisible (they will eventually be executed as a Windows service upon startup). How do i go about this? Does the code need to be copied in to a "Windows Service" project, or is there a way I can hide both of the modules upon execution?
View 5 RepliesI created an MSI for my application and i want my dll to execute during installation of this MSI. How can i add my dll to MSI. I read something on ORCA but getting error.
add my dll to msi using orca. My dll contain a message box and registry entry
i am getting an input from the user and i m checking in try catch statement. what i want to do is when the exception is caught i want to stop executing the rest of the code. my code is as below
Public Class AddForm
Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add.Click
Dim inc As Integer[code]......
I have this commandline in a cmd file "C:MentorGraphics7.9EESDD_HOMEcommonwin32inasc_out.exe" "-PROJECT=D:VeribestData55250u0555250u05.prj" "-OUT=D:VeribestData55250u0555250u05.inp" "*(*)"
And this peace of code
Dim program As New Process()
Try
program.StartInfo.FileName = Chr(34) & PrjSets.ProjPath & "ascii.cmd" & Chr(34)
[Code]....
And it generates no output If I double click on the command file it generates output