Datetime Milliseconds Dropped Off Goingbetween SQL?
May 7, 2012
When the Point of Sale program we use makes a change to a row in the SQL database, it automatically updates the ModificationDateTime for that row, and the precision is in milliseconds. I have another column called "LastSyncDateTime, and when theModificationDateTime is greater than the LastSyncDateTime, it downloads the row, finds the column that got changed, does its thing in my program, then updates the LastSyncDateTime with the same value as the ModificationDateTime so it doesn't repeat itself on the same row.The problem is that when it goes back to update the LastSyncDateTime, it loses the milliseconds precision, so the SQL Stored procedure to download new changes doesn't work ("Give me all the rows where ModificationDateTime <> LastSyncDateTime").
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Apr 30, 2009
Dim Timing1, Timing2 As DateTime
Timing1 = DateTime.Now
MyCode
[code].....
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Feb 22, 2011
I'm developing a Component. I'd like to do something when the component is dragged from the toolbox and dropped onto a form. For example display an about box.I don't want to annoy the developer by popping up an about box every time he refreshes his display or reloads the form.
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Jan 27, 2012
i created a VB.net applicaion dropped a MSWINSCK control of the form.set target CPU to x86 dot net 2.0 build project copy exe and axinterop and interop files for mxwinsock to a client and try and run the applicaiton the application crashes when opened i have been using mswinsock for a couple of years with .net so i know it works... why today it started giving me trouble i cannot understand
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Jul 22, 2010
I am using a DrawItem and MeasureItem events to paint a combobox with a DrawMode of OwnerDrawVariable.Basically, I'm trying to have the user highlight a selection with the mouse, and then press the space bar to toggle the Save status of a song list. Then I call the Me.Refresh() event for the form in an attempt to redraw the form and the ComboBox.The problem that I am running into is that only the Combobox itself (not the drop-down area) that is a control on the main form is redrawing, and the text that is behind the mouse-highlighted selection of the drop-down list is not changing from Red to Black as I believe it should. If I move the mouse to another selection, then the color does in fact update.[code]
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Mar 18, 2010
I am trying to drag drop an xml file onto a form and then read the file and extract valuesI have got a routine that accepts dropped files onto the form, but i only want files with the extension ".xml" to be accepted, is there a way to only accept certain types of file like a filter?And what is the function for manipulating a file once it has been dropped onto the form? I would like to read the file.here is the code i have that accepts a file onto the form and then i have a routine that i want to read the file from but i don't know where to start with this:
Private Sub picXML_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles picXML.DragDrop
'picXML.Image = the created FCOM table from
[code].....
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Feb 9, 2012
I have a PictureBox control (in Form3) that is used is used as a drop box where the user can drag and drop one or more image files at a time. When the user imports files, the form (Form3) will close itself.Meanwhile,the application stores file data in Form1.ListView1.The following is the code that I use for PictureBox's DragDrop event.
'Form3.PictureBox1_DragDrop
Dim s As Array = e.Data.GetData(DataFormats.FileDrop)
For i = 0 To s.Length - 1[code]....
Onion is a recent refuge from Mac OS X and hates Mac App Store. System: Windows 7 x64
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Jun 11, 2009
Context=VS.NET 2005, windows forms
I have created a custom combo that automatically drops when the combo receives focus. When the user uses the mouse to click on another control or the Windows Form the combo list is undropped but the click on the other control is never fired. Is there a way to avoid what appears to the user as a need to double click?
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Oct 12, 2010
So essentially, I have this text editor. How can I make it so when I drop a text file over it, it opens it in textbox2? Or when I doubleclick on the file, it automatically opens it in my program (in textbox2).
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Feb 28, 2012
I have a VB.net web service that returns JSON that works fine. Once the response gets to a certain size though, the client browser says that the server has closed the connection and sent no data. This is true using IE, Chrome, or Firefox. The magic size seems to be about 16383 records, or about 1.13MB of data. I know this is slightly large for a web service.
[Code]...
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Apr 12, 2011
I am new to VB and I have two detail listviews with one full of items that can be droppedinto the other. I have three groups in Listview1 and I would like different forms to open up based on the group each dropped item belongs to. I was able to open Form2 on drop by adding Form2.Show() at the end of the ListView_DragDrop handler sub, but this opens forevery item and I want different forms to open depending on the ListViewGroup the item belongs to.I set the items and groups in the property windows and not in code; I do not know if this makes a difference. So here is the code I have on Form 1 where the listviews are:Public Class Form1
Private Sub ListView_ItemDrag(ByVal sender As Object, ByVal e As _
System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag, _
ListView2.ItemDrag
[code].....
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Sep 5, 2009
I insert a text box into form1. I move the mouse pointer on top of the text box. I press down on the left mouse button and begin to drag the text box. The problem is when I let go of the mouse button the text box is not dropped. it remain floating around. My only way out of this is to press the escape key which places the text bnox bak to its original location. Thinking that it might be my mouse I tested it in Power point and everything works correctly.
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Jul 26, 2011
I am writing a Windows service to import data from CSV files dropped into a directory. One of the steps is to load an XML file with validation rules which I load into a List(Of T). It will pull the data, and then I have it pass the list to a class that monitors the folder and processes the files. After that I clear the list and read in the next file configuration. Now I have noticed that the validation rules aren't matching up and it seems that the list is being passed as a reference type even though the signature is of a value type.Is there anything I can do to get around this?
[Code]...
So here when I pass it, at first it will have 3 validation rules in the new ImportService class I created, but when I call fields.Clear(), it wipes out the class member of the ImportService class.
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May 3, 2010
The following sub prints 5/3/2010 8:39:26 to the tracelog file as per code below. How do I add milliseconds to the output?[code]...
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Apr 15, 2011
I have an ASP.NET, VB.NET Date, and I'm trying to get the number of milliseconds since January 1st, 1970. I tried looking for a method in MSDN, but I couldn't find anything.
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Aug 16, 2010
I'm working on a client application (server is out of my control) that connects to a server and exchanges query/command datagrams. 'Milliseconds Count!' according to my project specification, meaning that the more we can shave off a send/receive process the better.
I understand that there are physical limitations like network bandwidth, internet latency, etc. Even so, I have a strong gut feeling that a lot of the latency I'm seeing is directly related to processing; it seems 'out of phase' from the latency of other network operations (albeit with significantly smaller datagrams). IE: A standard 32 byte Windows Ping returns in about 5ms consistently, our query/response datagram (468 bytes out, 1500 bytes back) returns in about 15ms consistently.
I'm also working with multiple threads to speed things up as much as possible at the client side, and it seems the more threads are involved the more latency is generated (I've seen up to 70ms of additional lag when using 3 threads as opposed to 2). In a recent Google I found something that I only glanced at, that said something about a limitation in Windows System Timing where some claim was made that any System.TimeSpan < 10ms was effectively going to be a 10ms Timespan because the Windows System Clock only 'Ticks' every 10ms. I wasn't paying attention at the time, but now I'm afraid it might be relevant and I can't find it again.
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Dec 22, 2011
I am coverting VB6 programs and I find that the following statement drops the leading zeros from the textbox tbLotNo.If I check the value of tbLotNo.text it is 0001, but it shows up in the Access 2010 database as
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Sep 6, 2011
I need to analyze a 100 x 100 image in less than a second I need to find out if the image contains any red pixels.I have an application that provides that functionality but it's not as fast as it needs to be.
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May 4, 2009
I have a value which is milliseconds, I did some experimenting, and with my very limited math skill I came up with this:
Dim val = _Memory.ReadValueFromAddress(hProcess, timer_addr, 4)
Dim seconds = val / 60 Mod 60
Dim minutes = val / 60 / 60
I don't even know what will happen when the hour counts down,
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Feb 26, 2009
how can i converting minutes into milliseconds
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Mar 11, 2010
I need to have a microsecond-timer in my program. The default VB timer doesn't work for me because I need to count time accurately. Does anyone know a way to count time in for example 0.1 milliseconds?
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Sep 18, 2010
How do I convert milliseconds into a timestamp (date/time) since Jan 1 of the year 1? (Jan 1 Year 1. Not Jan 1 Year 1970) This timestamp hex code from a file:e1 27 17 6f e6 69 c0 which is 63,374,851,375,000,000 in decimal (milliseconds).I can't find any converter that can convert numbers based on Jan 1 Year 1.
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Aug 3, 2011
I am pulling a single field from a SQL Server 2008 table and when performing the SELECT in Management Studio, the result shows as:
2011-08-03 17:46:36.997
Now, in my application I'm storing that returned result as a string and using it to later perform an INSERT using it. I notice that after INSERTing into the database, I can see it is being stored as:
2011-08-03 17:46:36.000
Appears to be stripping off the milliseconds and replacing it with 000. In my case, milliseconds are important (sequencing thing)
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Sep 26, 2003
Q: How to computer the interval time from Starting block until its finish? For example, How to compute the time (in Millisecond or Microsecond) for execuation a serting block (Sortign or Searching Algorithm for example)? NOTE: Time must be in Millisecond or Microsecond, NOT in Second!
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Feb 25, 2011
Is there a way to add milliseconds in dateadd? It is not in the DateInterval enum. I created a class so my program knows what the real time is, based off the sql server. This way, we don't have to worry about people's computer clock being off, or different time zones, etc. When the program starts, it grabs the current time on the SQL server, and starts a Stopwatch. Then each time I need the time, I find the elapsed time on the stopwatch and add to the SQL time. The problem is that I use these times sometimes to do timestamps as a unique ID for certain records, and sometimes multiple records get created in the same procedure, so it is being called more than once per second, so the same ID is returned. I need the time to go down to milliseconds, so it is more precise. Therefore, I can't just multiply the seconds by 1000.
Here's my class
vb.net
Public Class RealTime
'Added 11/03/2010 v0.4.4 To determine the real time, not the time on the local machine.
'The time will be stored in GMT +/-0 World Time
Private stopW As New System.Diagnostics.Stopwatch
Private StartTime As DateTime
[Code] .....
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Mar 23, 2011
how to convert string to datetime and calculate date
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May 7, 2010
I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label. When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':[code]The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.
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May 1, 2010
I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label.
When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim dtmNow As DateTime
[Code]....
Why is it so? The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.
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Aug 8, 2011
datetime1 and datetime2now two fields are have data ( date )in table recordi want to update only datetime2 is an emptyi am using visual basic 2010 ( visual studio 2010
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Feb 11, 2011
Is there a way to get the time length of an mp3 in VB.net? I have TagLib, but it doesn't seem to have any functionality for it.
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