Executenonquery - Executes Successfully But Changes Not Reflected In The Database?
Aug 9, 2008
im using VS2005. and the built-in sql express.when i run my code in debug mode, i can see that the required number of rows are being affected correctly.but when i actually go and see in the table data, the data has not been inserted/updated.i am using sqlcommand. executeNonQuery() to insert/update data.also, i must add that both executeScalar and executeReader are working perfectly.what could be the possible reason for executeNonQuery although showing the number of rows affected but does not actually do it when seen in the table data?int x = cmd.ExecuteScalar(); // X SHOWS 2 OR 3 depending on the number of rows affected.
When I am loading an Assembly dynamically, then calling a method from it, I appear to be getting the method from Assembly executing before the code in the method that is calling it.It does not appear to be executing in a Serial manner as I would expect. Can anyone shine some light on why this might be happening. Below is some code to illustrate what I am seeing, the code from the some.dll assembly calls a method named PerformLookup. For testing I put a similar MessageBox type output with "PerformLookup Time: " as the text. What I end up seeing is:
First: "PerformLookup Time: 40:842" Second: "initIndex Time: 45:873" Imports System
I have a datagrid that I am saving to a database. If i am currently in a cell and have changed the value of it, but have not exited the cell or pressed enter the change is not reflected in the database. I think what I have to do is either mimic the Enter key or ALT key command on the activecell in the datagrid, I have tried using
I have this generic routine that I wrote that takes a list of sql strings and executes them against the database. Is there any way I can make this work faster? Typically it'll see maybe 200 inserts or deletes or updates at a time. Sometimes there is a mixture of updates, inserts and deletes. Would it be a good idea to separate the queries by type (i.e. group inserts together, then updates and then deletes)?I am running this against an ms access database and using vb.net 2005.
Public Function ExecuteNonQuery(ByVal sql As List(Of String), ByVal dbConnection as String) As Integer If sql Is Nothing OrElse sql.Count = 0 Then Return 0
I'm trying to update a record in MS Access database with the code below. But it says 'Syntax error in UPDATE statement and highlights cmd.ExecuteNonQuery()'.
Running into problems creating objects through reflection and then running them on multiple threads.
I just cannot seem to figure out what I need to here:
For Each WorkerNode As XmlNode In oRunSettings.GetWorkerValues orkerName = WorkerNode.Attributes(SETTING_NAME_ID).Value Dim oWorkerType As Type = Type.GetType(String.Format("Worker.{0}", sWorkerName)) Dim oWorker As Object = Activator.CreateInstance(oWorkerType)
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It is causing errors at the "AddressOf" because Object does not have a method called that. Do I need to do something with an interface?
We can reproduce it to the point it happens whenever we click Tab, but short of putting a break point at the beginning of every method in the project to find out what is executing.
Is there a way to set visual studio to break whenever anything executes?
I have a vb.net app using plain old ado.net to run a s'proc on the database server. The proc simply inserts a record that contains binary data.When this executes, I can see the exec call on the proc being made from within sql profiler.ado.net claims everything worked, no errors. However, a record isn't inserted. There are no key collisions or anything like that.I copied the query I saw from profiler and ran it directly within management studio. When I run it there, the record is inserted.For whatever reason, sql server and ado.net were conspiring against me. The user account I was attempting to execute the s'proc under did not have execute rights for it. After I set those rights then it was proceeding as normal.Now, the problem I have is that there should have been some type of warning, error, exception, whatever that said "hey, you can't do this" instead of simply saying "Everything is good" But that's a question for Microsoft.
'global declaration Dim FILE_NAME As String = "EventList.txt" Dim PATH_FILE As String = Environment.CurrentDirectory() & "" & FILE_NAME 'end of global declaration
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Using F8 to step through all of the code, it gets to this sub, highlites Dim fs and then hit F8 again it just pops up the form, no message boxes - nothing. Other notes: EventList does exist in stated directory.
Any ideas why it wouldn't complete the sub? the first debug line after hit the f8 is: A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll but the file is there
A problem developed in a program after some changes were performed. It runs the previously good program. Is it possible to get back the good program's code?
Is there a way in vb.net to create a sub/function that will take as an argument some kind of pointer to another function, and allow this new sub/function to execute the passed function? What I have are 10-12 xml-rpc functions I am calling against a remote server. Each of these functions has different argument lists (one takes 1 string, another might take 3 strings and one int, etc). All of them return an object.
I need to be able to make my animatedBarPictureBox display BEFORE my code executes. With my current code it only displays after all the Call statements execute, even tho I have placed it before the Call statements. Do I need some kind of repaint command to display this picture before it updates my bookmarks?[code]...
I am using Visual Basic 2005. The program I am creating can either bring up a form (with a bunch of buttons, listboxes and a picturebox) and the user can enter file names onto the form OR the user can drag file names from Windows Explorer and drop the names on the program icon to start the program. During the execution of the program, messages are displayed in one of the listboxes.
All this works fine except for part of the drag/drop scenario. When the drag/drop is done, the form is not fully loaded when the code function starts to put out messages. This means the user may not see any of the messages until all is complete. I have tried putting my executable code in the Form1_Shown() and even added a timer to slow things down a little, but nothing seems to work consistently.
I haven't touched VB or Visual Studio in an incredibly long time, so I appologize if this sounds ignorant.
Right now, my application (pictured below) is a simple button that executes a shell command. I was thrilled that I even managed that, but it got me to wondering if my application could execute that command, rather than sending the process to cmd.exe.
creating an application using VB 2010 Express. i found data I entered into table were not saved (after I clicked"Save" button)successfully into Microsoft access file which I had added successfully as datasource.These are the codes:
I am uploading an excel data to display in a datagridview and when i click on an update button it updates the database.but I want a code that will look up a column and get a value then display in a message box like "Data uploaded successfully for @ChurchID"where @Churchid is a column in the excel sheet but the id is the same but unique for every excel sheet upload If the upload is not successfull then it should give a failed message for that @churchID
Code
Dim i As Integer For i = 0 To (Me.DataGridView1.RowCount - 1) - 1 Dim Connection As New OleDb.OleDbConnection("Provider=Microsoft.ace.oledb.12.0;data source=C:Documents and Settingsmichael.marteyMy DocumentsVisual Studio 2005ProjectsmyRegistermyRegisterinDebugChurchesRegister.mdb")
I made an icon for my program and tried to implement it.Funniest thing though, I get a message with the error icon saying the operation completed successfully.But the icon doesn't change, nor is it my icon drop down box when I click the arrow. Ergo, it didn't complete successfully....I am using ASP.NET 2.0 and have read some about this error but I don't see any fixes I can do, aside from what I've tried already.
The problem is when I do through through a push button, it works fine, the file is captured, processed and clicking the button calls StartRecord() to start a new recording which enables the timer to look for the silent period but does not rely on the timer to restart the recording after processing - no issues I can do this over and over without a problem.Having it automated through a timer control it fails, after the first recording the timer should restart the recording by calling StartRecord() again but I get an error "The specified device handle is invalid". I thought maybe it was all happening too fast so I tried sleeping in between the restart for up to a full minute with no change, I removed the ProcessSpeech() sub routine from the timer and just had it record, and sleep for a minute then restart and still fail with same error. I can do the manual button start much faster than a minute with no issue.
Private Sub StartRecord() Dim fileName As String = "c: est.wav" Dim stream As Stream = Nothing
