Timer Is Functional / But Is Formatted Improperly Upon Starting
Feb 9, 2011
I am having a bit of trouble with a countdown timer I am creating. I work in a call center and the average handle time of each call is important, so I created a countdown timer for the agents to use to help them manage their call time. Along with a tab for the average handle time (AHT), there is a countdown timer for their break time, and also a stopwatch tab. It functions well, there is only one snag I am encountering. When I am on the "AHT" tab for example, the timer counts down from 8 minutes in the format of 00:08:00. (hours, minutes, and seconds are all in separate text boxes) When I click start to start the timer, rather than counting down from 8 minutes in this format, it goes to 00: 8: 0. Then it goes to 00:07:59 and counts down properly.[code]This isn't all of the code for the program, but it is the code for Timer1 for the AHT tab, and the code for the start button for the AHT.
when I try to publish my project, I have this error: Cannot continue. The application is improperly formatted.Contact the application vendor for assistance. [code]
I only have had 2 vb classes now in school but I rather like playing with this. I am trying to figure out how to make a button click start a timer that will bring up a splash screen and then close and then close the program. To clarify I want this splash to show up on exiting another simple program that I have already wrote. Also are there any online resources that anyone could recommend to me? I have found a few places but most of the .net ones were limited.
I have a background worker which runs, at the start it stops a timer which has it's interval set to 500ms, at the end of the bgworker sub it starts it again. I've debugged and found out that the line that starts the timer up again (tTimer.Enabled=True) runs. However the timer does not resume. I'm don't know, but I'm thinking perhaps because I'm stopping and starting it on another thread it's not resuming properly or the sub it was attached to (via AddHandler) has been reset or something so it's running but not running the code in the sub it was attached to. If I never stop the timer in the code, it continues to run just fine, but I need it to stop at the start.
I'm trying to weave a .NET performance counter into an application. When I call the incrementBy(value) method on my avg performance counter it is changing the RawValue of my base counter by value as well. I checked the variable names and think everything is correct. Then when I call increment() on my base counter it adds 1 to the rawvalue of the avgcounter as well as incrementing the base counter... adding insult to injury!
In code I'm using two different counters to measure the time a merge sort I wrote takes. I have a instantaneous counter for the elapsed time of the sort and an average counter. Dim timePiece As New Stopwatch() timePiece.Start() MergeSort() timePiece.Stop() [Code] .....
I think I may be using the counters wrong, but why does changing the rawvalue of the average seem to also change the rawvalue of the base? i dont think that's supposed to happen.
I just got put on a new project to design an app that will retrieve data from an excel data sheet that holds information from our VoIP server's call log. Conveniently, this call log is stored in a fixed location on the local drive that this app will be running on. After working on this for a bit, I knew right away I'm going to need someone smarter than I am...I got to the point where I can show data but heres the issue : Every time I am retrieving the date it shows it as, "08/27/2009 12:00:00 AM", how do i remove the unrelated time stamp? Here is my code in Visual Basic 2008 Express Edition:
Public Class Form1 Dim cn As System.Data.OleDb.OleDbConnection Dim cmd As System.Data.OleDb.OleDbDataAdapter Dim ds As New System.Data.DataSet()
I faced a problem that the vertical scrollbar of datagridview will be un-functional.Here are the steps to rebuild the problem:
1. Add a new datagridview component.
2. Add a new timer to set the datasource of datagridview at a regular time. For example, I add following code on the Timer1.Tick event:
Dim v_connDB As New Odbc.OdbcConnection Dim v_daCA2 As New Odbc.OdbcDataAdapter Dim v_dsCA2 As New Data.DataSet
[code]....
3. Then I press the down arraw key on the vertical scrollbar with mouse while the datagridview re-bind its datasource, the vertical scrollbar will be un-functional. And the action will be changed to be re-size the datagridview will I press the vertical scrollbar position.So, is it the bug of datagridview? How can I fix it?
I have an ActiveX object converted to be functional to WPF (standard procedure: Windows Forms control Library and then embedded into the WPF project using a Windows Forms Host controller). Everything works ok with a simple bug from time to time.I have some things in the Load Event that access the ActiveX controll properties and sometimes I get the error "Exception of type 'System.Windows.Forms.AxHost+InvalidActiveXStateException' was thrown."I guess this happens because the control didn't load before I'm trying to access the properties. That's why I put my properties on a DispatcherTimer with the interval 2 seconds in order to execute them later but I get the same error.
I am using Rational Functional Tester(RFT) tool with Visual Studio 2010. The scripts are written in Vb.net. The application gets slower frequently and sometimes the browser gets hang..I assume the problem is in memory leakage. We are cleaning the memory of objects by calling dispose in finally but still there is no improvement. How can we increase the performance at the best in terms of memory.
I would like to inform you that i developed fully functional application at client area . and then we need to create another application with some different functionality my problem is :
1 - i want to rename solution , and if so all files should be renamed . 2- if i run the app it should take the new name in Task Manager !.
when adding picture to dynamic picturebox from my.resources in .dll a duplicate semi functional picturebox is added too, behind the picturebox i intended to add. has anyone seen this happening before or can provide any insight into this?
User need to select their prefferable data to show in report. What i did is i have a clear command first to delete the temporary table. The temporary table is basically a table to stored user selection parameter data. After the clear command, i have a insert command to insert user selection data into the temporary table. What happened now is when i run the program exe, first run of the report is work fined, but not the second and the following times of execution. It will return null or blank report. The weird thing is when i execute it from development environment, it seem like the report is able to pick up user selection parameter and run the report for the first times and the subsequent execution.
I need an accurate timer to interface a Windows application to a piece of lab equipment.I used System.Timers.Timer() to create a timer that ticks every 10 msec, but this clock runs slow. For example 1000 ticks with an interval of 10 msec should take 10 wall-clock seconds, but it actually takes more like 20 wall-clock sec (on my PC). I am guessing this is because System.Timers.Timer() is an interval timer that is reset every time it elapses. Since it will always take some time between when the timer elapses and when it is reset (to another 10msec) the clock will run slow. This probably fine if the interval is large (seconds or minutes) but unacceptable for very short intervals.Is there a function on Windows that will trigger a procedure every time the system clock crosses a 10 msec (or whatever) boundary?
UPDATE: System.Timers.Timer() is extremely inaccurate for small intervals.I wrote a simple program that counted 10 seconds several ways:
Interval=1, Count=10000, Run time = 160 sec, msec per interval=16 Interval=10, Count=1000, Run time = 16 sec, msec per interval=15 Interval=100, Count=100, Run time = 11 sec, msec per interval=110 Interval=1000, Count=10, Run time = 10 sec, msec per interval=1000
It seems like System.Timers.Timer() cannot tick faster that about 15 msec, regardless of the interval setting.Note that none of these tests seemed to use any measurable CPU time, so the limit is not the CPU, just a .net limitation (bug?)For now I think I can live with an inaccurate timer that triggers a routine every 15 msec or so and the routine gets an accurate system time. Kinda strange, but...I also found a shareware product ZylTimer.NET that claims to be a much more accurate .net timer (resolution of 1-2 msec). This may be what I need. If there is one product there are likely others.
I have a windows application that need to process som quite time consuming jobs. In my first try i did all processing under the form thread. The result was bad response and update of the form due to the heavy jobs.To get around the problem with bad response from the form i created a new class "processing" where i put all the data processing. Then i instanciated a background worker where i in the "doWork" sub created a new instance of "processing".The "processing" class creates a timer from system.timer, and the timer drives the processing.On the Timer event Elapsed the timer starts a new thread from the thread pool.
My problem is now when i want to asynchronously close the background worker (with the corresponding function call what ever it is called ...) there is still a timer thread out there that causes exceptions for me.
1. How can i close my background worker and at the same time have the timer to be stopped?
2. Is there a way to synchronize the timer event so that the timer executes from the background worker thread?
I want to create an array of timer in vb.net. My problem is that how will i raise the tick event for a particular timer, say mytimer(x).tick and inside the tick event there is also a button, say mybutton(x) which changes location every interval. for example:
public class blah dim mybuttons(20) as button dim mytimer(20) as timer private sub form_load(....) handles me.load for x as integer = 0 to 20
[Code]...
i dont know what to do next, all i want is to pass the button mybuttons(x) to mytimer(x) tick event, in which their index number are the same. i want to create one timer per button. how to do that? please help me and post example codes. i've researched the net but i cant understand passing variables, addhandlers, etc. i'm just new to programming object oriented.
How can I incorporate the timer so once a page loads the timer activates, waits a few seconds then I tell my program what to do next.I tried this code but it didnt work:
Everything is nice and dandy on my pc, then I compile, move it to its final destination and I doesn't work! At first I thought it was a OS problem, but both machines has win7, I then thought it was a compilation problem, installed visual studio on the other pc, recompiled still with no luck, then it dawned on me, may it be a problem of 32bit vs 64bit?The piece of code is this:[code]....
By the way is not a problem of mouse_event, is the timer that doesn't work
I have a timer in vb.net and it's interval is 1000ms ,. i have placed in it's timer_tick event a code that will print screen the screen and save it to a database.The problem is when i click outside of the form, or loosing the focus of the mouse to the form containing that timer/printscreen, the timer stops. As a result the printscreen also stops.here are it's properties:
generate member = true interval = 1000 modifiers = friend
I recently switched my code from using the windows.forms.timer to the systems.timer.timer and it has resulted in a multithreading error. I'm using the timer to trigger just one event so multithreading shouldn't be an issue. To give more detail I have implemented the timer at follows: At the top of the class I have: Private Shared timr1sec As System.Timers.Timer
When the program loads (Private Sub Test_load): timr1sec = New System.Timers.Timer(1000) AddHandler timr1sec.Elapsed, AddressOf OnTimedEvent
In OnTimedEvent I call several subroutines, and write some data to the screen using a ListView object.VisualExpress throws the multithreading error on the last line of this code, which is in OnTimedEvent
I have a routine which is controlled by a timer. It works perfectly. The problem is that now, I need to run this routine several times, so I need to start differents threads so that my program doesn't get hung up. I've been trying to start my timer inside a thread, but it doesn't work!
I'm trying to get the first row in each worksheet to be shaded and have the font bold. Right now, I am able to get the first worksheet changes made, but none of the other worksheets within the same workbook are being changed. Here is what I have written so far for creating the spreadsheet and applying a format.Public Function WRITE_TO_EXCEL(ByVal dt As System.Data.DataTable, ByVal includeheader As Boolean, ByVal worksheet_index As Integer) As Integer
User posts text into textbox/grid etc Button is pushed. The text is formatted as if it were in a spreadsheet. ie Only x words per row Each cell is of equal length and width.To put it another way; The first letter of the second word of the first row. should be directly above the first letter of the second word of the second row.
I have a database full of dates that are in the format: MM/dd/yy. For example, today's date (November 4, 2011) is saved in the database as: 11/04/11. I'm having trouble with date ranges since my dates aren't formatted as yyyy/MM/dd (example: 2011/11/04). I don't have a way to change the way the database is populated, so I need to account for the date formatting differences within my MYSQL queries (via VB.NET). Here is my query (it doesn't work well because the dates are in the incorrect format):
SELECT CMP_DATE FROM my_data WHERE OBJ_DATE >= '1994/01/01' AND CMP_DATE <= '2011/11/04'
Is there anyway to reformat the dates within the query?
I have a wizard I jinned up at work to import a CSV into our database. The intro "welcome screen" has a fair bit of text regarding the catalog format, but it looks so... bland.
My thoughts turned to making an html page, adding it to the project, and then in place of the text box of instructions have a web browser control to load that specific html doc in the project.
The html doc would have all sorts of pretty formatting and what not (bold, bullet points, colors, etc).
