Relaunch Previous Sub On Duplicate Data?
Oct 6, 2010
I have 2 applications that collect data every 5 minutes and imports that data into a SQL Server 2005 table. Every so often the location that I'm quering to get the data hasn't updated thier values so the application is trying to insert duplicate data into the database table. Because I have Primary Keys set on 2 of the 3 columns the insert fails which of course causes an error in my application.What I am needing to do is if it runs into a duplicate insert wait 1 minute or so and then retry running the download data Sub.Each sub calls the next sub in the process line.
Downloadxml sub
call Verifyxml Sub
Verifyxml Sub
[code].....
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Jul 16, 2011
In Datagridview, Set as DatagridView1.ReadOnly=True,
Dgv1.Rows.Add()
When i tried to add a Row, it is copying previous Row data to new row,and also blank the previous row, why?Like Insert Row, Why...?
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Dec 5, 2010
How can I prevent my app from launching again when I click on the icon. I only want it to appear on top again when I click on the icon. It's a big problem because it has a file association and every time I open a file it opens a new app instead of using the first one.
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Dec 8, 2010
i want to create a table that include a current year data and as well as previous data to be compare. here is the example of the table that i want to create: but i want to compare one of the annual data with the previous year. as example i want to compare between the data of current AR of 2007 with the current AR for 2006, Current AR of 2006 with current AR for 2005 and go on~, but i have no idea how to do it.
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Sep 11, 2010
I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Delegate Sub ListBoxUpdater(ByRef listbox As ListBox, ByRef str As Object)
Private Sub OnQuoteUpdate(ByRef QuoteUpdate As LingLib.structQuoteUpdate)
UpdateListBox(lbBox, QuoteUpdate.tQuote)
End Sub
[code]....
My problem is when the new data comes out from the API, if it is equal to the previous data and it will appear 0. But what i want is the new data comes out is 0 and it will equal to previous data. e.g: first data comes out is 12.00, in above case, if the second data comes out is 12.00 but it will shows 0 which means unchanged. But in my case now, i want if the first data come out is 12.00, then if the next data is unchanged (0) and it will appear 12.00 and so on.
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Sep 7, 2010
I am currently working on a API. I am having an issue on the listbox when the new data value equal to previous data then = to "0". However, I want if the new data value( A ) is equal to the previous data( B ) then ( A ) equal to ( B ).
Private Sub UpdateListBox(ByRef listbox As ListBox, ByRef str As Object)
If (listbox.InvokeRequired) Then
Me.BeginInvoke(New ListBoxUpdater(AddressOf UpdateListBox), listbox, str)
[code]....
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Mar 17, 2009
im added a dataset inside my project, and inside the dataset i added a DataAdapter with the steps like below:Use SQLStatement --> select A,B from tb_example --> Fill a datatable.And then i bind one of my combobox datasource's display member = Avalue member = BAnd its work properly!After few weeks, im reopen the project and i try to add another new dataadapter in the previous dataset and a new combobox like steps i did before. When i come to the combobox and try to find the datasource in combobox's properties and i cant find the dataadapter i jz added.
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Apr 21, 2010
When i run this app., it shows all the data from my sql db now. How can I only need the previous 20 days data show from the sql db to the following ListView.
[Code]...
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Dec 2, 2011
I am a freshman by using vb and I had search several website to learn the method to display the previous saved data in a label but none of it is related to my problem.
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May 5, 2011
I have this code I use on my form which has worked fine up until now I need to add another form to my project but the text from form 1 gets overwritten when form 2 gets added How can I append my data without overwriting the previous form.
Dim sfd As New SaveFileDialog
sfd.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
sfd.ShowDialog()
Dim writer As New System.IO.StreamWriter(sfd.FileName)
writer.Write(RichTextBox1.Text
[Code] .....
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Jul 1, 2009
I know its .net but i am still using ADODB this is just a sample table, not really what i am doing..I want to take a look at a bunch of records until the customer changes. then i want to have the previous recordset data displayed or passed off to another function how do i set RS2=RS but when i "movenext" RS RS2 still holds the previous record data? [code]
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Dec 14, 2011
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
[Code]...
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Nov 5, 2011
i'm using below code to save data to sql but i need to save the new data only not all data
table name :
CHECKINOUT
key :
CHECKTIME
[Code]...
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Feb 20, 2012
Anyone who know how to make a validation for duplicate data?. i have my own code but not working. This is my sample code
[Code]...
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Mar 16, 2011
I have 2 webforms default.aspx and default1.aspx.In default.aspx I have a button on button click event it redirects to default1.aspx?sno=1
then on default1.aspx I have a button back. On back button click the user is redirected to previous page default.aspx.How can I do this?
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Jan 24, 2012
my 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 & "'"
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Apr 6, 2011
In first search, result will show.In second search, the result in first searching will also show with the result in second searching. [code]
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Nov 8, 2011
In my winform, i m using a datagridview.. I m also allowing to enter data through it. User has to select a product and put in price for it. for products column i have used combo box and for rate column i have used text box.I want that once user has selected a product, he is not allowed to select the same product for other rows... I mean duplicate product selection not allowed... how do I prevent it..
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Apr 1, 2012
I have this line of codes here to check if the records exist.
Try
If StudentInfoBindingSource.Find("StudentNumber", StudentNumberTextBox.Text) = -1 Then
ToolStripLabel4.Visible = True
[Code].....
This codes works perfectly but there is a problem, if I close that certain form and reopen it and try to input the same student number, the ex.Message for the Try appears and still the progressbar() command executes although the data will not be saved. I want to ged rid of the execution of progressbar() how can I make it work? And as much as possible I want the message box in Else to be executed and not the msgbox in try catch.
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Apr 23, 2012
in that form i have 1 button and 1 webbrowser but is there any way i can when the button is clicked.it takes some data from the website and duplicate all of the data so like if there is a integer on a website and its the number of the viewers on the websitecan vb take the data and duplicate with another number and show it in a label.
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Sep 10, 2010
I'm trying to automate a data entry. I have a form with several textbox, combobox, etc.. and i will like to know if there is a way to get a specific row of data from a binding source and duplicate it so I can then simply make the necessary changes to a few columns.
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Dec 10, 2009
How do you restore a dataset to the previous state before updating the database with a data adapter? I have a concurrency update problem that I believe to be caused by this. The update fails during the update and a rollback command is issued using a SQLTransaction object. However, now the rowstates of the rows that did not have errors have been changed to unchanged. So this record is no longer availible to be inserted into the database. When I updated the value that could not be null and then test the second update which runs just as the first does then I get a concurrency error. The update code is below:
[Code]...
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Aug 11, 2007
Ok, most of my Visual Basic experience I admit was with VB 3 and VB 5. I'm just starting with VB 2005 Express, and get this error when trying to connect to a new database.
I'm using Windows Vista and have the latest Microsoft JET version, so I have no idea why I'm getting that error.
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Mar 15, 2011
I'm using the following code to write the data and schema of a dataset to a XML file.
[Code]...
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Mar 17, 2011
I have this data in txt file and the data keeps changing all the time.
[code]...
I would like to read all lines and compare, if the same name and same address is found, which is in the [......], then i need to count it and show the most frequent buyer!should i read it all and put in array, and compare and put the duplicate data and count into another array?
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Sep 11, 2009
I'm doing a simple database thru VS2008 and Msaccess without using any builtin relationship between records, now i need to know how i can retrieve specific data from access using the oledbadapter or any, example seek if the value from the textbox1.text is already existing in msaccess table then msgbox "Record already exists.", note that the code is in keypress event of the textbox1.
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Mar 27, 2012
I have a List object and I want to remove the duplicated items but leaving at least one of the duplicated items in the list;I wrote something like this however I would optimize this code for better performance, is there something faster?
Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Dim rnd As New Random()
Dim mylist As List(Of String) = Enumerable.Range(1, 100).Select(Function(i)
[code].....
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Apr 23, 2012
I have a query (qryTallyMedalInformation) that i bound on datagridview and it has 5 columns ( country, athlete, medal, game and date). Instead of having country in the datagrid, I want to use it in a combobox to display records base on country selected.what i did (with wizard) doesnt work fine though. My country combobox shows duplicate data and the datagrid is showing all the records from different country. In one word I JUST DID NOTHING.
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Jan 15, 2011
I am attempting inserting into an Access database, and the insert is successful (when I open the database the data is there), but I'm getting an error: "The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again."
This is really confusing me. No matter what I insert, it still gives me the same error. And I don't understand why it's giving me an error even though it's working. Here's my codebehind:
Protected Sub Wizard1_FinishButtonClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.WizardNavigationEventArgs) Handles Wizard1.FinishButtonClick
[Code]....
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Oct 1, 2009
I am attempting inserting into an Access database, and the insert is successful (when I open the database the data is there), but I'm getting an error: "The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and
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