I have an application that updates a great number of fields on a pretty short interval timer. (on a standard form)Question is as follows... which one of these statements will work better for this? (working better = faster/smoother)Dim textToUpdate as string
if textbox1.text <> textToUpdate then textbox1.text = textToUpdate
OR textbox1.text = textToUpdate
What I need to do to make this code work for hours as well?[code]...
View 6 RepliesHow to make the timer interval less than 1 ms ? other wise i want to make the interval of the timer 0.001 or 0.05 at most.
View 13 RepliesSo, I have two timers. 1 Timer is set with an interval of 1000 (milliseconds), therefore it goes off every 1 second. For some reason, when I set the interval on the same timer to 1, it goes off 100 times every second. Shouldn't it go off 1000 times every second? What's going on?
View 4 RepliesHow can I get a timer to run one interval,one interval only, and stop? Until now I have only used timers to keep running until I say to stop. Also I need a timer that will start at the beginning of, and run until any given process is completed.Upon completion it should shut off and tell me how long the process took. Kinda like a stop watch with a Stop / Start "Trigger".
View 19 RepliesI was wondering how do I make it so that people that use my program can change the Timer Interval. So they can set the timer.
View 3 RepliesHow can I change the interval of a timer to tics, or change the scale of movement from pixels to twips?
View 12 RepliesI have an animation program which allows users to import and animate images. I do this using timer events. I have a listbox which contains the image references, and a Image which displays the chosen image. Here is the
When the user clicks the "Animate" button:
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles animate.Click
Dim cananimate As Boolean = True
[Code].....
I want to make a dialog to appear and allow the user to select a custom FPS for the animation. For instance, if they type 15, the listbox must go down 15 images in 1 second. But how do I convert FPS to a timer interval?
When a button is clicked on my forum i need it to enable a timer that has a RANDOM inverval. how to do it or give an example. (im trying to create an autotyper that types a given phrase at random times)
View 5 RepliesHow would you make the Interval of a timer to be between two times.
E.g if you wanted an event to occur between every 7 and 20 seconds?
I am trying to write a simple code that will essentially change the background oclor of a form from say red to green, like every five seconds.(Actually, it will be green 4 and red 6 seconds). I set my timer interval to 1000 and enabled it. So when I write my if/then statements in the timer area, would I be using timer.interval <=4, or timer.interval <=4000 to count off four seconds?
View 1 RepliesI don't know much about vb.net so I'm hoping this is something that can be done fairly easily. We currently have a system where valves are fired by checkboxes (representing each valve) being checked at certain intervals and when the last valve is switched the timer restarts in order for the sequence to repeat itself. We would like to be able to have a textbox in the form where we can just type in the interval at which the valves (checkboxes) switch without having to change the interval manually in the code each time we want to change it. Currently in our code we just have a set interval. Here's the code:
[Code]...
I have dragged and droped a timer control "tmrGetMappingXML" from the Common Controls Tab in Tool Box. The issue that I am mentioning also appears for the Timer Control present in the Components Tab in tool box.
In the form Load I have written:
HTML
tmrGetMappingXML.Interval = 3600 '1 Hour = 3600 Seconds
tmrGetMappingXML.Enabled = True
tmrGetMappingXML.Start()
The timer interval is also set in the design time to 3600 seconds. But the Tick event of the timer fires continuously every second.
I have an MDI form, and all of its children have a timer control. I also have an options form where the user can change the automatic refresh interval, which is loaded from the parent. The interval is stored in My.Settings.UpdateInterval as a Double.What is the best way to update all of the timer interval of the Children? Can the Children listen for an event in the parent form (UpdateIntervalChanged)?
View 2 Repliesis it possible to specify a System.Timers.Timer with 0.1ms interval?
View 14 Repliesmy event in timer goes too fast, i need to slower it. the interval is ok, i cant use sleep because it freeze everything ( webbrowser control ) and it need to stay active not freezing. i tried application. doevents() no result same problem, is there a way to do what i need? its a program that automatically fill a webbrowser form and restart every-time. there no logout button so i need to use setmouseposition and mouse_event but timer do event too fast one after other and if i use sleep everything go wrong.
View 5 Repliesam really getting to know more about programming each day. really interesting.
i have a form with some labels.. i need each label to display a text after certain time of the time count. i have this piece i put together.. didnt work but i guess it need a little professional touch.
[Code]...
I'm working on a small game that I want to sync with the intensity of the music. I have a timer added and I want the interval to change with the intensity of the song playing. How would I go about doing this? I tried playing with Zplay and BASS.net with no luck.
View 1 RepliesI'm writing a metronome program (a.k.a. click track; it's used for keeping you in time in music), and can't for ther life of me figure out how to play a sound byte (a short beep) as the beat.
I know I need to place this code in the Timer Tick event, but I just have no idea how to import/reference etc. the sound.
my function is to adjust a timer interval according to a integer variable.
Original code (works fine):
Code:
Dim UpdateSnakeSpeed
Select Case UpdateSnakeSpeed
Case currentscore > 199
[Code]....
This is the code I'm using right now. (works fine and is more logically correct than the above case statement. I have chosen to go with if .. end if statements over case, as I do not have a full understanding of what the variable SnakeUpdatespeed is doing in the Select case statement. If someone explains then I'll consider it. Also I know case statments are only meant to be used for 1 option selections, however I'm amazed that it still works in case. Atm it's going to be if end if. Now I'm trying to get the for next loop going with this (if it's logically possible). that's what i'm aiming overall out of this thread. To make a convenient loop.
is there a way to show the current time left of the timer interval( in a label or something?)something like a count down for the next interval?
View 2 RepliesI have been making an online role playing-game in VB2008 and inside the gameloop for the client there is some code that "smoothes" out the movement (instead of it being choppy from tile to tile.) It works pretty well but I'm having problems figuring out a math formula to get a good frame timer interval to set how fast the frames change based on how many pixels they can move per loop.Testing stuff out I found that 250ms is an ideal frame timer interval for 1.0 pixel movement per loop. If I were to double the movement step of pixels by 2 lets say (2.0 pixel step per loop) I found that the frame timer interval should be around 125ms. How can I get the frame timer interval by the movement step of pixels? In cases where the movement step can anything between 0.1 to 4.0 pixels.
View 3 RepliesIn VB6, I used to declare my variables like this:
Dim x As Integer
Dim iLongName As Integer
i.e. All the types tabbed to line up.When I click "Pretty listing (reformatting) of code" in settings, it won't let me do this - and without "Pretty" switched on, the code is a mess (as a VB programmer, I'm not used to having to do things myself).Is there any way to configure this all or nothing option so I can get the best of both worlds?
John
PS. Sorry if this sounds trivial.
I have never used table layout, and not sure if it the best way to go.Here is my objective. I need to create a Schedule Viewer, pretty much a table. The columns would be "Station Names", Station1, Station2, etc. And the Rows would be time of day. At the intersect of the row and column would either be OPEN of the time for that station is open, or the last name of the user who has that stationed booked.I have all of this data in my database. I just need to display it. I don't think I can use a traditional datagrid because the columns are data too.
I also need to build this grid programmable, because every client will have a different amount of stations and different times available.
I have Visual Studio Team System 2008 SP1 installed.In the VB editor the Pretty Listing (auto format) has stopped working. Also the Format-Document (Ctrl-K,Ctrl-D) no longer works in VB windows. Format document works in my XAML and C# windows however. I've checked the Tools-Options-Text Editor-VB setting and Pretty Listing is enabled.[URL]
View 1 RepliesHow can I get a Variable's value set to the number of Data Fields in my DataBase that is NOT Nul.
I have in a table 10 fields or columns Named: Ing1, Ing2, Ing3, Ing4, Ing5, Ing6, Ing7, Ing8, Ing9 and Ing10. This fields will all most never all be fild, will be fild from 1 upwords. I need to know how many of them is NOT Nul.
I am getting the above error in my code. I've searched the net (on this site and others) for a solution to this problem and it seems that its either something to do with a field name being a reserved name ie. Date, Time etc.... or its missing (') or (") in the SQL command. ive tried both these solutions to no avail.
Dim objDataAdapter As New OleDbDataAdapter
Dim objDataSet As New DataSet
Dim objDataReader As OleDbDataReader
Dim i As Integer
Dim SQLstr As String
[Code] .....
I have a dynamic query which returns a DataTable. This DataTable will contain a varying number of columns depending on the selection used in the query. I want an efficient way of filtering the records in the DataTable.
For Example The DataTable contains columns : A, B, C and D
I need to query this data at serveral points in my program. At some point I may need records where A=10 and C>40. At another point I may need records where A<10 and D=90 etc.etc. The selects are dymanmic, I do not now what Columns or values are needed until the code is executing.
I could simply use a DataTable Filter and build the selection string dynamically. I have no problem with this. However I was wondering if using LINQ would be more applicable. I am completely new to LINQ and would like to use it but don't know its capabilities.
(At present I am using a DataTable but in future this may change to a collection of Objects)
here is my code. dont seem to know whats the problem. i have 12 data fields in access excluding the ID field.
Dim strCon As String = "Provider=Microsoft.jet.oledb.4.0;data source=C:UsersdexterDocumentsdesktopcsci14databaseMuseum-final.mdb"
Dim dSet As New DataSet
[Code].....
I am writing a parsing method for a csv record and want to throw an exception if the number of fields in the record do not match the expected length
View 3 Replies