I like to update data from an access database every 100ms. This works fine, but it does not look good on the screen. It refresh the whole screen on my laptop and it is not looking good. Is it a good way of updating data without getting this disturbanses in the screen?
View 1 RepliesI would like to run a code every 1 minute ,15 minute etc Is there any better way than following put in the timer control with time interval 1 sec. A c# solution is also ok.
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What would be the best way to run a subroutine over and over again every X seconds. I want to avoid creating an infinite while loop to do this because this sub needs to be called repeatedly while the rest of the program is still active and responding.
View 4 RepliesWhat exactly is that time-out interval parameter when downloading a file using vb2010?
View 4 RepliesHow can I extract the interval time into minutes and second. I can set the interval where 1000 is a second. I don't know how to capture and display in a textbox seconds or minutes counting down or up.
View 2 Replies[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 RepliesI am using Visual Basic 2008 for a Windows Form application. I have a PictureBox on the form that I need to display a series of 12 JPG files, one every four seconds. For the life of me, I cannot seem to figure out how to get the Timer control and its Click event to work.
In pseudo code, I need something as simple as the following:
1. show JPG #1 in picture box
2. 4 second delay
3. show JPG #2 in picture box
4. 4 second delay
etc.
I have a Timer on the Form set with Interval = 4000. I have a PictureBox. I have all the images in the Project. I am embarrassed to say that I have spent 4-5 hours searching the Web for sample code or something helpful, but am still stuck.
All the elements are there. It's just a matter of understanding how to pause the image displayed in the picturebox for 4 seconds before moving onto the next image in the series.
my program is design to receive a pup-up forms.i wnt this result..if i received a popup forms it will close automatically for 10minutes..the problem is i don't knew how to do it using timer.
View 5 RepliesI have this code in one button:
For Each x In ListBox1.Items
Label1.Text = "Status: Loading IMDB page..."
Dim str As String = x
Dim MOVIESNAME = str.Substring(str.IndexOf(""c) + 8)
[Code] .....
Is there an option to set a time interval between each check? Because it will load the page (it's not google, it's my personal website with some information needed) and it need to be fully loaded till it gets the information then it would do another check for another listbox1 item. Like.. maybe 5 to 10 seconds is enough..
Webbrowser1
Dim strCDRack() As String
Dim cdList As String
'Dim i As Integer
cdList = WebBrowser1.DocumentText.ToString
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I'm trying to read bytes with 1200 interval for 100 times, but I can't get it working. This is my
Try
Dim fr As FileStream = File.OpenRead(OpenFileDialog1.FileName)
Dim data(fr.Length) As Byte
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I need to read from offset 4896, then from 6096, then from 7296 for 100 times and for each interval add to the listbox.
am 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.
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I have a quesion about using the timer1 function. I am a complete virgin when it comes to programming, so please be kind. I have a project that is using an NCD relay controller to control linear actuators. I want one relay to turn on and then stay on for 10 seconds and then turn off. I set the timer1 properties to enable with an interval time of 10000. I am programming a button to turn on the relay then wait 10 seconds then turn the relay off. All that happens is the relay comes on then off immediatley. I have tryed to do this several different ways with the same results. It is though the timer1 is not getting recognized. So my main question is, what steps am I missing, and how do I get a delay of 10 seconds before the program recognizes the turnoffrelay command?
View 2 RepliesI have a problem in detecting the 30 minutes interval in time scheduling like for example i have a combobox(starting_time) and combobox2(endtime) and I select there 9:30-10:00 it has 30 minutes I want to show a message box that I should be 1 hour.
View 12 Repliesis 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 am still new in programming. I am an electrical engineer. I have to read the time from GPS from one serial port apend this time to a data got from other device serially.
View 1 Repliesmy date and time picker cant get data on my SQL yog database it only get data on year 2011 .it cant show me data on year 2012...i hava a range of date.my code is :sSQL = "select * from qry_reciept where product_name LIKE '%" & txt_name.Text & "%' and b_desc = '" & cbx_brand.Text & "' and d_purchased >= '" & datetimepicker_1.Text & "' and d_purchased <= '" & datetimepicker_2.Text & "'"
View 5 RepliesI'm only getting started with VB.Net, using VB Express 2008.Using the System.Data.SQLite wrapper, I need to read data off a SQLite database file, and chart data using basic bars, pies, lines, etc. Nothing fancy.
View 1 RepliesI am trying to write a windows application in vb.net to import data from excel to sql server. I got "object not set to an instance of an object" error. The data actually have been inserted into the sql. The following is my code. I have a button when the button is clicked, it does frmProcess(). The first row is header in excel. I start to read data from 2nd row.
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Private Sub frmProcess()
Dim app As New Application()
Dim book As Workbook
[code]....
I have data that was stored in a sql 2008 table in image format. I want read the data from sql with VB.net 2005 and put it into a character array or a byte array where I can access the data within the code. I can not use file stream to read the data because I have no ability to read files from a directory.
View 1 Repliesso i just bought a years web hosting with godaddy, and apparently i have one ms SQL 2008 database, is this compatible with VB ? and if so how can i link them together? i need the user to be able to update the database but also read data from it.
View 15 Repliescan only retrieve data from database one time with read code:
While reader.Read
RichTextBox1.AppendText(reader.GetString(0))
End While
I have problem with my application I have a table with 3 columns: column1(numeric(18,0), allow null), column2(nvarchar(255), allow null), column3(datetime, allow null). I want to read data from a .csv file and insert it into database. I use 'bulk' to insert data from file .csv into database instead of inserting query. But the problem is: the .csv file have to be formatted as:
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Dim purchasedatetime As Date = Now
chasedatetime2 = purchasedatetime.AddSeconds(50)
Dim subtotal As String
[code].....
I want to store date time picker into database .I am using date to search my reservation information and how is the code for search out the information from database.
View 4 RepliesI can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesI'm developing an application that will take the data from a cd. This cd stores a .csv file. Can VB read this data from the disc and upload it to a database? Im not sure exactly where to start looking. Can someone point me in the right direction, as to what compnents i should be looking at.
View 9 Replieswhat I am trying to do is i have a table with four records and I want to write it to a txt file. I am running sql server 2000.I am able to connect to my database and I am able to right data to a txt file my only problem is it always returns the 1st row of data.
Dim FILE_NAME As String = "C: emp est2.txt"
Dim conn As New SqlClient.SqlConnection
Dim da As New SqlClient.SqlDataAdapter
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I know how to select items from an array with LINQ, but what I can't figure out how to do is access a database using an IQueryable. I connected the database to my project, added two classes from the database to the "LINQ to SQL" .dbml file and saved it. In my programming assignment, I am not supposed to create a data source (table thing) to display the data, but update my own interface manually. In order to do it, I was told to instantiate this:
Private dogs As System.Linq.IQueryable(Of Dog)
(Dog is a class that I added to my .dbml file from the database file)Also, I am told it involves using a method
.AsEnumerable.ElementAt(index As Integer)
what the best way to do this?
View 2 RepliesI am using GUID for uniqueness (Guid.NewGuid.ToString), but while getting data from database some time GUID order is mixedup.
View 1 Replies