I am programming something which involves certain files changing every second. Now, if the files are not changed for, say, 10 seconds it means that some error has occured somewhere, externally. So, I want the user to know about it. How can I implement this?
Sorry cant add comments due to some problem.
@Jeremy - Very small. Precisely, It wont exceed 10-15 characters.
MVC 3 VB.NET razor. I have a view that has 4 dropdown boxes in it.. This is for setting up a staff member.. If that staff member is to work certain classes then that class will be set for each day. If he is not then the value needs to stay null. This is a edit view so it may have to be accessed multiple times and still keep the original selectlist values if none changed. The below is what I have right now that is working only on its face. The Old selected value is shown first. However this isnt being returned on the save. The only way that it will save correctly is if I select the value that was set in each box then click save. The next problem is that not all staff members will have classes to work on every one of the 4 days. So how do I set a value to null and keep it that way unless a class Is actually selected.
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I changed my Username on my computer from i.e. "xxxxxx x xxxxx" to "Dennis"
VB 2008 during a compile gave me the following error: Error reading icon 'C:Usersxxxxxx x xxxxxAppDataRoamingMicrosoftVBExpress9.0VSProjectApplication.ico' -- The system cannot find the path specified.
The file "VSProjectApplication.ico" is in 'C:UsersDennisAppDataRoamingMicrosoftVBExpress9.0'
Somewhere in the VB2008 "configuration" files I believe that I need to manually change the old path to the new path.
I found the old path in the ".suo" file. The ".suo" file is not a text file. How can I edit the .suo file, save it so that it will work?
I want to convert seconds such as 254565443 seconds to hours, minutes, and seconds and thought if I could remove the decimal and the numbers behind it and not change the number in front of the decimal then it would work.
dim seconds = 254565443
dim Hour
dim minute
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This is my function to goto a specific time in a movie or music, ... check it out..
'GOTO TIME IN MOVIE, or SONG.
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
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I have implemented the filestream feature of SQL Server 2008 in a VB.Net application. I can insert files, and then retrieve/view them just fine. However, I have huge problems trying to update a file. Eg. The user selects a file from the grid which I execute via process.start. If that file is a .txt file, the user may choose to edit it. In case that happens, I need to save the changed file back to the database. So far I have failed to do that.
What I do, is take the retrieved file, copy it (cause i got some errors about it being used), and then Process.Start it. After that, via .NET filestream, I convert the file to bytes and try to update the record. SQL Profiler and a manual SELECT on the varbinary(max) column tell me that the file is updated properly, but the very next try to retrieve it I get an unchanged file.
After that I also tried to update the file by changing its File-System Version, but the file still wouldn't seem to update. Does Anyone have a code sample of how I can achieve this operation? Like 500 sites on the internet have examples of how to Insert And Retrieve the file, but not a single example on how to update. This is how my second attempt of trying to update the file via the filesystem looks like. The code for inserting/retrieving is very similar and it works properly. [Code]
on my Form I have a DataViewGrid and some textboxes with a save button (they are filled with additional data of the selected row).Save is disabled first, when I change something in the textboxes the save button is enabled.When the user changes a gow in the grid, I want to ask before changing the grid row, if he wants to save (if the button is enabled).I am using RowEnter but this is too late, then the selected row already changed (and my textboxes already got new data)...What event can I use to ask if I should save stuff before the user changes a row?Something like BeforeRowChanging with a chance to cancel changing the row?
View 2 RepliesI m making on software and for this software I need the value of audio file in seconds, and I want to store it in Database..So is there any method to persofrm this task,
View 1 RepliesIs there a way to play a wav file and then pause for 10 seconds and then it will repeat? I know it will be a loop, but the part that gets me is pausing for 10 seconds before starting the loop again.
View 1 RepliesI want to save a string of text to a file every 1.4 seconds or so, and each day at midnight I want to create a new file for the days log data so I keep the file size down. The file stays open the whole time so that it is ready to accept data from several different forms which call a function (SaveToVoltsLogFile(str)), so I open it at module level like this:
Dim fsVlogStream As New FileStream(EVENT_LOG_PATH & VOLTS_LOG_FILENAME & DateString & ".ip", FileMode.Append, FileAccess.Write, FileShare.Read)
Dim swVlogWriter As New StreamWriter(fsVlogStream)
Now each time I call a function SaveToVoltsLogFile(str), the str data gets saved to the file:
Friend Sub SaveToVoltsLogFile(ByVal str As String)
swVlogWriter.WriteLine(str)
swVlogWriter.Flush()
End Sub
But by opening it this way, I cannot call a sub to close it and open a new file for the next day because putting the Dims into a sub means that the file is out of scope to other subs/functions, so my Save... sub won't work! So, what I think I need is a separate sub to open the file, another sub to close it, and another to write the str data. But how do I do this and keep the file in scope to all subs?
Quick question - if I have a timer set to 5000 (5 seconds) and the code in the timer takes longer than 5 seconds to run because of sql stuff, will the timer wait until the code is done till it fires again?
View 3 RepliesIs it possible to geht the date, when a xml-file last time was changed. I mean the date, which you can see, if you right-click the file and click properties.
View 1 RepliesHere's the code for my "Play Audio Button"
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This works great, but I would like to make it so that I can tell it to play the sound file starting at, for example, 3 seconds and ending at 9 seconds in. For instance, I could have 2 Numeric Up Down boxes on my form and whatever NuD1.value = is the lower range and NuD2.value = higher range.
How do I specify at what point in the sound file I want to start and at what point in that same file I want to stop?
I am curious. If I am using a combination of streamreader and streamwriter is there a way that I can have a stream written only if File X has been modified? [code]
View 1 Replieshow can i open a csv file in which part of its name changes daily, mainly the date (including seconds)?
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I'm using FileSystemWatcher to monitor a file on a windows server which links into a news ticker on our desktops. The ticker watches the file and updates accordingly. I've successfully got the ticker to watch for a creation and deletion which is great but the changed function doesn't seem to trigger. Out of interest, I tried this function on the network drive AND a local disk with the same results.
I've upped the buffer but I can't see what else I can do to change it! In the short term, we can probably live with just deleting and recreating the file with any changes that are required, but it would be nice if the ticker would just watch for file changes.
I have a filesystemwatcher that checks for any changes on the files in a directory, it will then copy them to a new directory. I am getting an error saying that "could not find file C: TMPEFD.tmp", so basically when i edit the[code]...
View 4 RepliesWhen my app closes, perform a checksum, digital signature, whatever on a data file, and save that in a text file.
When my app opens again, perform that same process on the file, and see if the new checksum matches the saved one, in order to determine if the file has been changed outside the application.
I've got an issue with an Access97 replicated database that I'm writing a small monitoring app for. I've got FSW's to track changes to the necessary files, but am having some issue in enumerating exactly what has changed in some instances, specifically when attributes may have changed. I'm using a similar strategy to track this as I did for changes in size. I've got a Private class variable for the size of each file and a local method variable and compare the two, when different, update the class variable for the next comparison.
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I have a label that is supposed to display a word for 5 seconds and then move down the list in a text file and display the next word.I'm oddly able to make it work in random mode, but not going down the list in order.. random would be ok if used words didn't come up again.
Code:
Dim DurHold As String = My.Computer.FileSystem.ReadAllText(Application.StartupPath & "FlashWords.txt")
Dim DurDelimiters() As String = {vbNewLine}
Dim DurTextLines() As String = DurHold.Split(DurDelimiters, StringSplitOptions.RemoveEmptyEntries)
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Is there a way to add x seconds to a stopwatch once a button is pressed? the stopwatch is currently running by the way.
View 9 RepliesI want when i press a button in richtextbox add a text then after 10 seconds the text changed.
Can I do this?
I would be very grateful of any insight/resolution of the following issue I need to overcome.Using VS/VB2008 Pro/SQLExpress - all running on XP, I am building a WinForm Application (a Quotation application for Landscape Designers).48 Bound controls on my form work perfectly with DataSet and Tables when Updating any user changes to controls on the form to variables that determine price/cost of work being quoted for - providing the DataSet has already got values in it; Delete also works fine. However, although the "AddNew" (on form's BindingNavigator) works, it takes 30 - 35 seconds to add a new row. Table contains 10 rows and 45 columns. This is unacceptable and despite most of this afternoon reading forums, searches etc, I have failed to find a solution to an issue that I cannot believe appears to be so infrequent. Clearly, it is something I am doing or not doing.
I have searched via Google, crawled over MSDN pages, read/searched some of the standard textbooks on VB 2008 and looked (again) at Beth Massi's Data-related Forms over Data video series. I have re-checked the properties for the TableAdapter/Manager on my Form. I have used the wizards to create the necessary Select etc clauses. All runs as required except when user needs to add a new row (aka "New Quotation")
I was wondering if it's possible to add seconds to a clock in vb.net. I mean lt's say I have a label and I assign it to DateTime.Now(), how would I show/display the time with the seconds "ticking"?
View 1 RepliesI have at timer that at the moment only shows in the output label as seconds, but i am looking at displaying it as minutes and seconds. The timer value is held as a double, and i don't really understand the date time concept.Would someone be able to explain to me how to display it as mm:ss
View 10 RepliesI'm currently coding a small app, and I got sort of stuck when I had to convert from seconds to HH:MM:SS. This is the "solution" I came up with so far, but there's a small problem with it.
Code:
Public Class Form1
'Accept amount of seconds
Public seconds As Integer
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The code works fine if the amount of seconds is 3600 (1 hour) and under, but if its above, it doesn't really work.
I want to run read_switch() every two seconds. How is that possible in vb.net?
View 4 RepliesDim purchasedate, purchasetime As String
purchasedate = Date.Today
'Stores current time in the variable purchasetime
purchasetime = System.DateTime.Now.ToString("HH:mm:ss")
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I am trying to add 60 seconds to the current time (purchase time) but would my method of System.DateTime.Now.ToString("HH:mm:ss") + 60 add 60 seconds to the current time ?
I have intger that represent time, but are not time values. So I have a MIN as int = 5 and SEC as int = 25. And I want to subtract 30 from SEC.
In normal math I would get -5. But this is time, so my MIN should be 4 and SEC be 55. Is there a formula for this already?
I know it would be easier if I was using DateTime, but that is not a option. I'm locked into using integers.
in calculating interval between two Events in Seconds..
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