VS 2010 Limiting Function Time
Nov 29, 2011Currently I have calculated that one of my functions executes 62 times per second (on average). How can I limit this to say exactly 50 times a second (every time)?
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Avoid A Possible Hang By Limiting The Time A Method Is Allowed To Take?
Jul 6, 2011I am using an external DLL (pdfsharp) to open (then manipulate) lots of PDF files. I use: Dim inputDocument = Pdf.IO.PdfReader.Open(PDFPath, IO.PdfDocumentOpenMode.ReadOnly) Problem is - it seems to hang on certain, rare files. I don't seem to get any timeout - it just hangs for hours on this line. We read thousands of files with this code, always on tiny files, so I was thinking that a quick workaround might be to somehow timeout if the this method takes more than a second or two. But I don't see a simple way to do this. I am hoping to avoid spinning up a worker thread.
View 2 RepliesVS 2010 : Limiting Values In A Textbox?
Apr 25, 2012I have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur so I need help on to handle that.
View 2 RepliesVS 2010 Limiting Values In A Textbox?
May 12, 2012I have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur
View 3 RepliesNow() Function Returns Date And Time Which Is Different From System Time
Nov 24, 2009The Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.
View 2 RepliesVS 2008 What Will Happen When 3 Function Calls Same Function At A Time
Apr 27, 2009What will happen when 3 function calls same function at a time? I have 3 Function, f1,f2,f3.. Those function after completing their task will call finish() function. What will happen if Finish is Called morethan once..
View 9 RepliesVS 2010 : Convert A DLL Function Call Which Has The Callback Function Routine Called Within The DLL Function Call?
May 25, 2012I am trying to convert a DLL function call which has the Callback function routine called within the DLL function call.The DLL function call signature is like this:
typedef void *HANDLE;
typedef HANDLE HACQDESC;
DECLARE_HANDLE (HWND);
[code]....
how to convert this DLL call to VB.NET and also how to create the callback function and send it as parameter to this function
call.
VS 2010 Comparing Current Time To Stored Time?
Mar 27, 2011I'm writing a report scheduler that is somewhat of a clone to the backupexec scheduler and the layout can be seen in post #10 here: [URL]..It works great and saves/edits/deletes records just fine, but now i need to compare those records one at a time in a windows service that i'm writing in order to trigger automated report creation and emailing - i already have the report and i already have the code for the emailing, i'm just looking for the most efficient way to loop through the table (that i've pulled in to a dataset) and compare its records with the current date and time - if true, the event fires.
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1stSun, 2ndSun etc are bit fields, time is a datetime, and the remainder are varchar. My service checks the database every thirty seconds.The english version of what i'm trying to do is "Connect to the database, grab the entire table (it will always only have 5-6 entries max, so i felt 30 second sweeps was okay), and If today is the 1st Sunday of the month, and it is currently 11:00:00 a.m. (could be any day or time, this is just an example) - loop through the dataset to identify if any records match the time field or greater - if they do, fire the report
VS 2010 - Calling A Function - BackOrdered Function Of Program
Mar 30, 2012I am having a problem with the BackOrdered Function of my program. I can`t get it to say anything but 0 when I run the program. Another problem I am having is the input box pops up like 6 times and it`s only suppose to once. [Code]
View 9 RepliesLimiting Access To A DLL In .NET
Feb 12, 2010I write in-house software for a company. I always want to leverage OOP techniques as best as I can. In this thinking, I want to create a Data Access Layer (DAL) isolated in its own .DLL. What can I do to limit the access of the DAL DLL to only my business logic layer DLL? The last thing I need is someone in the company with a little programming knowledge plus access to the system (via Active Directory) to install .NET Express, reference my .DLL, and start firing off data access code outside of the real system. Are there any .NET mechanisms I can employ to limit a DLL to be used only by a pre-selected host application/DLL?
View 2 RepliesLimiting The Size Of A RTB?
Jan 30, 2011My application allows the user to enter text into a RTB including all the various text font, size, etc changes. The user then prints that data onto a label. I got from my previous posts, I can print that on my label Each sheet has four labels, 3x5 inches. I print landscape and adjust margins to select the right label.But I want to limit the amount of text the usr can enter to the amount that will fit on the label. In essence, what I would like the user to see is a virtual label on the screen that they can type data into and get exactly the same formatting on the label when they print it.
I found several (mostly old) articles about linking the RTB to the printer, but nothing on how to set and limit the size of the RTB to the exact size of the label.
Two Function Executing At A Time?
Jul 1, 2011There are two location one main form and other is communication class which use comport to send command.Everything is good in VB6 but same code fails in vb.net actually program behavior is really different.in vb6 one function execute at a time but in vb.net it execute two function at a timeeg. In form there is function to write command over comport once command is posted one event is raised by serial port in this function byte array is formed and the statement immediate next to raise_event use this array to show on formbut when event is raised control is toggle between first function and event function it execute one statement from second(COMMUNICATION CLASS) function and one statement from f
View 1 RepliesLimiting FPS To Screen Refresh?
Apr 19, 2009I have made a game (real time strategy) and it is running rather fast on my 3 GHz quad 8800 GTX, namely, it runs around 200 FPS usually when there are like 80 units and tanks in a forest fighting.
I would like to limit the FPS. So far my limitation code is pretty buggy... it does limit, but wrongly:
Private Sub LoopGame()
Do While GameIsNotPaused
FPS += 1
[Code]....
Also, after I solve this weird issue, should I set the value to monitor's refresh value which is usually 60 Hz on LCDs? Or should I set it to 30 or what ?
Limiting Textbox To Numbers Only?
Feb 20, 2012I've made a lot of progress on my project. Only question I have now is how do I limit a textbox to only allow users to input numbers and one decimal point? The point of the decimal point is to make it currency. So if the answer of my calculation is 56.56566 I only want it to be $56.57.
View 5 RepliesLimiting The User Input?
Nov 21, 2010sample of codes that i use to insert the data in my table, it works just fine but the problem is that i cant limit my user for example from entering null values, or integers into string or strings into integer,,,,, I also ask for assistance on how to handle any errors in my system from crashing.
Dim conn As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Application.StartupPath & "MOMSTEST.mdb;")
Dim Comm As New OleDb.OleDbCommand
[code]....
Sql - Meaningful String Limiting?
Oct 10, 2011I've got rows in my table that contain text anywhere between 31 character and 281 characters long.Rather than display all this text in my table on my webpage, I'd like to limit this text to a few characters long so as to identify it to the user.What I've done is select left(ColumnName, 30) but this way is fairly ugly on the page as it cuts off the text in the middle of words.
View 2 Replies.net - Simultaneous Threads Only One Seems To Function At A Time?
Mar 17, 2011Threads a + b, (both are trying to delete files).a gets called first, then b while a is still running.b deletes the file successfully but a doesn't.If I run a on its own, a's file deletes fine.
When I step through the code I can see that a's MultiAttemptFilename gets overwritten with b's.
I don't understand.I have an ajax call pointing to a generic handler which passes the filename along with it.In my handler I have the following code:
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Calculate Time Taken To Execute A Function?
Apr 26, 2010I want to calculate the time taken to execute a function.[code]...
View 6 RepliesFunction To Change Number To Time?
Apr 13, 2012Currently just started working with VS2008 I have a SQL script that is returning a number looking time in one of my columns (50625) which is 5:06:25 What I would like some help with is creating a function that would take this value and change it to a real time at some point I will need to do further calculation on these times so I need to be able to add or subtract these results.[code]...
View 3 RepliesHow To Use Timer Function Just As Time Delay
May 29, 2010What line of code would I need to use the timer function just as a delay, so like as lines are being executed, once it gets to this timer it waits for say 1500 milliseconds before execution is continued.
View 4 RepliesMake My Function Pause For A Certain Time?
Mar 8, 2012I am facing an issue. Actually what i am doing is that i am tryin to store certain values in a database. A function is such that it calculates 5 values and stores them in a database. While storing them in the database it displays them in a textbox on the form. Now i want to display them one by one which it does. But it does it so fast that i can only see the last value that it enters in the database inside the textboxes.[code]...
View 9 RepliesPerform A Function At A Specific Time In .NET?
Mar 25, 2010I am writing a small app to automatically connect my PC to the internet at a certain time and I am using rasdial.exe for it...
Private Sub SetIt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SetIt.Click
Dim windir As String = Environment.GetEnvironmentVariable("WINDIR")
Shell(windir & "system32
asdial.exe", AppWinStyle.NormalNoFocus)
End Sub
My question is how to make the shell function run at a specified time or after a certain interval?Also how to wake up my PC from hibernation using vb and winresume.exe
Read Hex At The Same Time Loop The Function?
Oct 29, 2011I'm a newbie in VB.. I'm editing a file that sets the click-able area of a button in a game.
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Set Time Interval To Every 5 Minute Which It Will Do Function
Jun 11, 2011[code] As my program above, i set the time interval to every 5 minute which it will do the function. However, after 5 minites it does not affect any thing in my program, is that my coding wrong? or I had miss something?
View 7 RepliesForms :: Limiting Sends Within Form?
Dec 14, 2011i got a program that has clients send self typed messages via gmail and i want to be able to limit everyones use of this so they dont try to spam me, i want to make it so they can only send 1 from their computer every 12 hours how would i do this?
also i would like to make sure that one of the boxes they fill in has indeed been filled in with at least 20 characters before they can click the send button, hoping this would prevent ppl from sending blank messages
Limiting A Text Changed Event?
Jun 11, 2009I have an number of text boxes and comboboxes on different forms. I have textchanged events which trigger a msgbox if the user enters invalid data(i.e. the number they enter is to big or to small). Is their a simple way to make the program not call the textchanged event when the form is loaded and the boxes get their initial value? Second is their a way to make the textchanged only be triggered when the user enters data not when the program clears the boxes?
View 3 RepliesLimiting Array Size Through Class?
May 29, 2009Is it possible to have a UD Class that can limit how big it can grow as an array?
for example:dim var(10) as class this would throw an exception cause the class will only grow up to 5 elements.dim var(4) as class valid cause it is under the 5 element rule dim var(4, 10) as class invalid cause the 2nd dimension is above the 5 element rule. (would throw exception)
Limiting ComboBox Based On Database
Mar 30, 2012I want to limit the number of students (60) that will be enrolled in one section and prompt a message that it surpass the limit. I inserted it in my combobox1
Here's my code :
strsql = "select * from Schedulings where Sections = '" & ComboBox1.Text & "'"
Dim acscmd As New OleDb.OleDbCommand
acscmd.CommandText = strsql
acscmd.Connection = asconn
acsdr = acscmd.ExecuteReader()
It doesn't work. How should I do it?
Limiting The Number Of Items In A List Box?
May 19, 2011Does anyone know how to add a limit to the number of items in a list box? For example, you can't add more than 10 items in ListBox1.
View 2 RepliesLimiting User Selection In ListBox
Apr 30, 2011This program allows a user to select a workshop and a destination, only one selection should be made. When I test I find I can add multiple of the same.
Private Sub ListBox1_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.Validated
If ListBox1.SelectedIndex = -1 Then
Beep()
MessageBox.Show("Select a workshop please.")
End If
[Code] .....