Creating Temporary Tables In MSAccess DB?
Feb 25, 2012
I'm almost ascertain there's a better way to do this but for right now I'll go with this. This is using WinForms, NOT on a webpage.
In Visual Basic 2010, I would like to create a form that uses a datagrid view pulling rows from a temporary table made at run time. When the "Submit" button of that form is clicked, the rows from the temporary table will be copied into the regular table. (This is being done as there is no ID# available until AFTER the form is submitted. The ID# is needed because the rows made in the temporary, as well as the entire form, will be associated with THAT number.)
how can I dynamically create a temporary table in MSAccess OR how can I use a datagrid without associating it with a table?
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Oct 10, 2010
Is it possible to create temporary tables in MS ACCESS using VB.NET?
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Nov 17, 2011
How would one create a temporary copy of an image to use, and then dispose of it once finished? System.IO.File.Felete returns an error, stating that the file is still in use. How would I make the file delete-able? [code]As you can see, Ghostscript creates an image in a temporary location, then sets it into the pbPreview PictureBox.
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Nov 15, 2010
I have a VB program that creates a temporay PDF file then opens Outlook and attaches the file. I create the file in hte application path (the location that the program is running from - normally C:Program FilesProgamName This works fine in XP as it appears there are no crazy permission issues. However in Wondows 7, the file does not appear. There are no errors, the file does not exist in that location.
I've changed the path to the root of C:, however this doesn't work either. I suspect it's something to do with W7 virtualisation, so the question is where can I create a file that I can then access again?
I was trying to avoid creating it on a share on a server, but it's looking like this is the only place to put it as there doesn't seem to be many places a user can write files to in Windows 7.
Surely there must be a location that users can access (without being administrators) to create files. Don't even get me started on the fun I have had with the registry in W7!
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Jul 31, 2009
I want to compress an ms access database using vb.net. If the database is open this fails. How can I close the database, compress it, then reopen the database using vb.net code to accomplish this. I've already successfully written the code for compression, but I can't find anything on closing the database while leaving ms access open.
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Jan 20, 2010
Rather than use an Entry name of an existing VPN connection, is it possible to connect to a remote network by creating a temporary connection on the fly by using the remote IP/Host name, username and password?
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Mar 15, 2008
i am using visual studio 2005 and database sql server 2000. i want to read table of database and readed data insert in temporary table again update that inserted record.
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Jun 21, 2010
I m using .net , I create some temporary tables at run time, how to print these table data thru crystal report
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Jul 19, 2011
When I create a form using only one table in a database this works fine. However when I create a form that uses at least two tables I am getting an error on my ReceiptsAdapter (or my SQLDataAdapter). It's saying that I am using the incorrect syntax and need the keyword "From." I am assuming that I am getting this error because I am using multiple tables in my SQLCommand statement.
Imports System.Data
Imports System.Data.SqlClient
Public Class Receipts
[Code].....
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Oct 15, 2009
I have created this table using sql but I need to create a relation with another table and I don't know how.
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Jun 5, 2011
how to store or create a table on my database using vb.net i'm having hard time to create a table on my existing dbase
here my code;
Dim ntable As OleDb.OleDbDataAdapter
Dim mtable As New DataTable
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Documents and SettingsjessprDesktopmydbasesample.accdb"
[Code].....
when i view my access dbase i cant see the table that was created on my code. how can i view that table?
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Mar 25, 2010
The following code creates a table in a mdb file.Dim tblName As String = Trim(Me.txbTblName.Text)
Dim Source = Trim(Me.txbLoadDB.Text)
Dim Pass = Trim(Me.txbPassDB.Text)
'Define the connectors
Dim oConn As OleDbConnection
[Code]...
I would like the table name be variable based on the textbox text but the following change creates a syntax error. Why is that?oQuery = "CREATE TABLE '" & tblName & "' ( ID Counter,Name TEXT(50) NOT NULL,PRIMARY KEY(ID) )"
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Jul 17, 2010
I have 3 tables: Customer, OrderHeader and OrderDetail. Customer and OrderHeader joined by CustomerId, OrderHeader and OrderDetail joined by OrderId.how to create an xml file that combines these 3 tables together having the following structure using ADO.net?
[Code]...
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Sep 21, 2009
I am generating tables and writing them to word on the fly. I do not know how many tables there will be each time i write the data to word and the problem I am having is the second table is written inside the first cell of my first table. If there was a third table it is put inside the first cell of my second table.Is there a way to move the cursor out of the table? I have tried creating a new range with each table also but the same thing happens.I have also tried things like tbl.Range.InsertParagraphAfter()The closest I came was using the Relocate method, but this only worked for two tables.
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Jan 18, 2010
i am creating a booking system for my A2 project but i cant create tables or field in the database and enter information in them. I have created a ms access database in vb but after that im stuck. The database must be created in vb programatically as i get more marks for complex code.
here's my code
Imports ADOX
Module Module1
Sub Main()
[Code].....
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Dec 20, 2011
I am trying to load a crystal report from two tables but it seems that is not working.Here is the code to load the crystal report:
Code:
Private Sub InvoiceLoad(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]......
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Sep 24, 2011
I was reading from a book, and there's a way of creating database and accessing its tables using tools available in IDE. i-e DataSet, BindingSource, TableAdapter, BindingNavigator. Is this the correct way of using database or through the code??
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Nov 1, 2011
I am working on a CMS system for my business, and need to be able to generate notifications dynamically into a control panel. Please note, I am using .NET 2.0, coding with VB and my data is all held on a MySQL database.This is pretty simple for most aspects, but as the whole thing is dynamic some things are proving more difficult.I have a set of tags which are dynamically generated with a repeater as follows:
<asp:Repeater runat="server" ID="locationRepeater">
<ItemTemplate>
<p id='locationNotification' title="<%# Container.DataItem %>" runat='server'>
COUNT DATA NEEDS TO GO HERE
</p>
[Code]...
The data is really, really, simple, all I need to be able to do is query a table on my MySQL database for COUNT of ID WHERE locationName = Container.DataItem during each loop of the repeater... but I don't know how to do this.I'm thinking maybe I have to do this first, create a table in memory somehow, but I am afraid I have no idea how to achieve this.
Has anyone got any examples of a similar thing, it's kind of binding to a repeater from two datasources... each task is very simple, but I don't know how to put it all together!
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Aug 15, 2011
I have produced some VBA in Access that creates a spreadsheet.I have also created an SQL query that retrieves records from an Access table.I have 48 tables (each table for a specific institution centre).I have created another bit of VBA code that creates a spreadsheet and loads the records from the query in to the spreadsheet.Each centre has a unique Sequence Number (Indent Number)At the moment though, all I can do is import one table (records for one institution) in to a spreadsheet. I want to end up with calling the function and having an output of 48 spreadsheets being saved to my desktop, each spreadsheet containing records of a different center.I have thought about putting a loop in, but not sure how I would quite go about it.
Here is my code to create the spreadsheet:
Public Sub ExcelExport(lngIndentNumber As Long, strFolder As String, strCrit As String, strReport As String)
', ctlLabel As Label,
DoCmd.SetWarnings False
[code]....
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Mar 20, 2012
I have two tables as follows:
Customer | Product
------------------
A | Car
A | Bike
A | Boat
[Code].....
If I use a normal JOIN then I get a list of friends for every separate product. I just want the two lists once.
The output lists with '-' need not be table cells, they can be <ul>s.
How can I achieve this? I would like to bind to ASP.net GridView. Should I try to do it all in one query, or use multiple queries and somehow add them both to the same Grid?
Each row actually forms part of a long report. Essentially each row of the report contains Customer ID, a bunch of other fields which match one-to-one with Customer ID, then the two lists for each Customer ID I described. Perhaps I can use a separate query for each list, then manually add each list to the grid on RowDataBound or similar?
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Sep 10, 2009
I'm getting this error 'column' argument cannot be null. Parameter name: column at the bold character instruction. Also I would like to know how to relate two tables with two key columns in each table
Dim connection As New OleDb.OleDbConnection(strTextoConn)
Dim EnPartesdataSet As DataSet = New DataSet("Enpartes")
Dim strsql As String
[Code].....
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May 21, 2012
Dim obj_DataTable As New System.Data.DataTable("Category")
Dim obj_DataSet As New DataSet()
'Declaring the array of DataColum to hold the Primary Key Columns
[code].....
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Jul 25, 2012
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
Following is example code.
Dim
SQLconnect As New SQLite.SQLiteConnection()
Dim SQLcommand As SQLiteCommand
CODE:.....................
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Jul 12, 2011
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
[code].....
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Oct 29, 2010
In my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
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May 10, 2012
We are presently developing an application, let's call it APP1, which uses a SQL Database which have about 800 stored procedures, 600 tables, etc. APP1 was originally created in order to replace another application, APP0, from which we do not have source code but only SQL tables, Stored Procedures, views, etc. Previous programers of APP1 used some DB objects from this same database and added some other objects specific to APP1 because it becomes bigger than APP0. And we do not need APP0 anymore as APP1 does all what we want, and more.
So, now, we are thinking about a way to find out which objects are used by APP1 in order to remove objects which are ONLY used by APP0.What is the best approach to discover all objects used by APP1 without having to open every single class and form?
Once we will have a complete list of these objects, it will be easy to use a program we bought which detects all dependencies for all SQL Objects specified directly from SQL and remove objects which do not return from any dependencies. Any ideas of how I could get this list without having to go through all our program that have many, many, many classes and forms?
Note : I know, in a perfect world, all calls to PSs and tables should be in a DAL but in the case of the application we're presently working on ... this is not our case! Yippy! (sarcastic yippy) ;)
Note 2 : This application is not using any ORM. So all queries are directly using SqlCommand. So any call to any DB objects are in string format.
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Aug 21, 2010
A temporary directory available for all users?
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Feb 18, 2010
In my application,I have some reports which needs to be viewed frequently.After viewing the reports many times by different users, it shows load error.For different systems, many temporary files are created.i need to delete those files in my single system.now i manually deleting all the temporary files in the temp directory and configure the IIS again.then the report loads properly.But we need to delete these temporary files frequently which makes our life dreadful.Only the report files needs to be deleted.How can i delete these temporary files automatically using code? I have used the following code for this.but some files cant be deleted as those files are in use.Do those temporary files in other system can cause load error in our system?
dim temp as string=Environment.GetEnvironmentVariable("TEMP")
dim k as sting()=System.IO.Directory.GetFiles(temp)
dim i as integer[code].....
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Aug 17, 2011
In my program I create two temporary files for use while it is running.How do I delete these files on program exit, without any questions being asked. Just deleted with not a trace
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Jun 24, 2010
my aspx web app needs to allow clients to load files (excel files) to some place in the server, to be able to open and read content via OLEDB
immediataly after upload. Are there any "best practices" or suggestions about location, naming and security of temporary files folders?
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