How To Access Table Data Via DataSet
Feb 17, 2012
I'm confused about DataSources and DataSets.I created a DataSource (DataSet?) via the DataSource wizard called PPIDataSet. This has tables in it Customer, Vendor, Orders, etc.Now I want to access the data in these tables via code. So I'm expecting to be able to do PPIDataSet.Customer.AddRow or something like that. However, when I access the PPIDataSet object, in IntelliSense,I only get PPIDataSet.CustomerDataTable PPIDataSet.CustomerRow
How do I access the table data via the DataSet? Or do I have to access it some other way?
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Feb 1, 2010
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
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Dec 17, 2010
new to vs2010 express trying to accomplish a simple task read records from a sql server DB table and add them to a table (different format eventually) in an access DB Sample code below seems to work ok up to the point of the data actually showing up in the access table.
[code]...
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Oct 25, 2011
In my VB.Net desktop application, I have several places where I am accessing a table, both for reading and for updating. For example:
Dim tempCount As Integer = Glbl.GlobalDataSet.Tables("Profiles").Rows.Count
The above does not work. However, the following does:
Dim tempCount As Integer = Glbl.GlobalDataSet.Tables(4).Rows.Count
I am pretty sure it was working in th past (I have recently switched to VS 2010 - could this have anything to do with it?) but it is not working now.
How can I make the first statement work, so can access tables by table name instead of by index?
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Jun 3, 2011
I think this may be a usual issue but I am not able to find much info. There is a master customer database and a call log database at work. The call log database has two tables that are updated from the master database monthly. Now I am writing this vb frontend for the call log database and cannot figure out the update portion
For p = 0 To maxrowsC (currently around 1000 rows)
With myCommand.Parameters
.AddWithValue("@HEATSeq", dsCallLog.Tables("ConfigDS").Rows(p).Item(0))
[code].....
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Jun 5, 2011
I have 2 databases that I am working with. One is a compant customer database and the other is my personal call log. Now I am creating a front end for the Call Log. I was updating my customer list by Importing 2 tables from the customer database, a series of queries would erase all of my info, take all the data from the imported tables and move it into mine then erase the imported tables.
Im trying to accomplish the same in my VB frontend. I can connect and fill datasets from the customer database. I can erase my tables. How do I take all of this data from the newly created dataset and move it over to my empty tables?
[Code]...
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Feb 2, 2012
I have text boxes binded to table from dataset. I make changes, i save changes.. then I open database with access, i can see changes...everything is ok... Then I open application again, changes are there, everything is ok. Then I close application and go to smoke.. when I come back and open application , the new data is gone. what's happening? This is how i save changes:
Me.Validate()
Me.NastavniciBindingSource.EndEdit()
Me.NastavniciTableAdapter.Update(Me.StudentDSET.Tables("Nastavnici"))
Me.NastavniciKonzultacijeBindingSource.EndEdit()
Me.KonzultacijeTableAdapter.Update(Me.StudentDSET.Tables("Konzultacije"))
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May 5, 2012
I use a dbDataAdapter to populate a DataTable from an unlinked oracle database.I have a dbDataAdapter that I want to insert rows into an SQL Server table using SQLCommandBuilder.I have been trying all day to update the DataTable that references the SQL Server table with the data from the Oracle DataTable so that I can insert the rows.
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Dec 9, 2010
I've create a new VS 2008 Window Form Project using VB. I added an oleDbDataAdapter to the first and only form, set it to a table in my Access 2007 Database (there is only one table, PK field autonum of course and two Memo fields). The Database is in the Project's folder. A standard oleDb Connection object was created, as I expected, then I select the DataAdapter and choose 'Generate Dataset' which produces a standard DataSet called 'DataSet1.xsd'. Now when I build the project I get an error 'Error 1 Type 'FontTest.DataSet1' is not defined.' I do have a reference in my new Project to System.Data.So what the @#%$@ is going on? Why isn't the Dataset create by the DataAdapter being recongized? I can get into the DataSet Designer. The DataTable create is perfect, three columns defined correctly as I expected.
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Sep 15, 2009
In the below code, it is supposed to load the data from the dataset, into the table, so that I can view and navigate the records.My problem is, that when the statement runs, it errors with:
System.Data.ConstraintException was unhandled "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints."
Here's the code:
[code]...
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Jun 9, 2009
I'm trying to insert data from an Access unbounds form to an Access Table using the follwoing code:
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Oct 15, 2011
I have a gridview loaded with data from my database and a gridview swapping function which after exchanging data between rows with a column call "Priority", I want to save these changes back to my database. Only the "Priority" column value will be change, how do I update only that Column of my dataset table to my SQL database?
[Code]....
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May 31, 2010
I am designing a form to Enter new City Name list where i accept following fields
CityName, District, State, Country, Pin.
because a State names and Country names can be retrived from earlier entries, i want to allow user to select desired name from a list in combo box or a list in Auto Complete Custom Source for text box, to do this i have added a Table Adapter to underlying DataSet having Query "SELECT DISTICT STATE FROM CITY ORDER BY STATE".
Now, how do i use this Table Adapter to fill the ComboBox List without binding
And also Custom Source List for TextBox.
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Oct 26, 2011
I want to track changes in an application. So I've made a copy of the main table in that application, and am accessing both tables in the application using two separate datasets.
My plan was to use the HasChanges method of the main DataSet to get changed rows and then insert those into the copy table. When I run the code I get an error:
A first chance exception of type 'System.InvalidCastException' occurred in MyApp.exe
Unable to cast object of type 'MainDataTable' to type 'MainAuditDataTable'.
Here's the code:
If Me.DataSet3.HasChanges Then
' 'look for each row that has changes, not new rows
' 'insert that row into the auditing table
[Code].....
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Apr 12, 2011
I have written some functions that I have in a module. In one of the functions I would like to update a table that is in a dataset. I would like to do this with this function and not from a form class where the table could be bound. I need to call the function from various places in the application.
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Nov 11, 2010
The control comes up blank??Imports System.Data Imports System.Data.OleDb Public Class Form1
[Code]...
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Sep 30, 2010
I've tried exporting data from an Access 2003 database to Excel in VB.NET using the following [code]...
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Sep 18, 2009
how can I access SQL data from VB? I am working on a purchased application with a bunch of 3rd party VB controls. What I would like to accomplish is to validate certain controls for user entry and I have one 3rd party control that has a table grid in it displaying SQL data and was wondering if it's possible to validate that SQL table data. And to complicate things, the 3rd party control is located in a different form altogether from the form where I need to insert my validation button.
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Jul 12, 2009
i m doing project making dictionary so if a enter a letter in textbox example 'a' then the word which starts from a will me display on listbox?
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Nov 22, 2011
I have already binded a data source from Access to my visual basic program but need to add a True/False column to two of the tables. I could do this manually in access and re-bind the sources but that would take up too much of my time so I wanted to know if I'm using the proper code to add a column to the data table directly from VB? Here is the code I want to try but I don't know where to place it?
OleDbCommand = OleDbCommand("ALTER TABLE tableName ADD
FieldName DataType");
(something).Connection = OleDbConnection;
[Code]....
I'm not sure what goes into the "something" parenthesis and where this code must go. I already tried editting through the data designer but although it shows the column in the DataGridView, it does not save any data or the column into the actual access file.
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Mar 6, 2009
I'm having trouble to add Data to a Ms Access 2007 from a Text Box. This is the coed I'm using at the present time.
Private Sub btnNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNext.Click
If (IsNumeric(txtOrderEntry.Text)) Then
DesignForm.Show()
ElseIf txtOrderEntry.Text = "" Then
[Code]...
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Mar 1, 2012
I need to code the following:
1.Connect to an Oracle database.
2.Execute a query.
3.Insert the query result into an Access database table.
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May 19, 2009
I'm trying to remember how to insert data in to a table. Here is my code
Code:
I get the error
Quote:
Number of query values and destination fields are not the same.
I also get some error about the Insert INTO part not being right somewhere. Am I doing this how you would do it, or how would you do something like this?
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Jun 22, 2010
i had problem in inserting data into a table in access database.i am using visual studio2005 for the projects.here is my code
Dim strConnection As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" _
& "c:UsersBELLCONSULTDocumentsLIBRARY2.mdb "
Dim cn As OleDb.OleDbConnection = New OleDb.OleDbConnection(strConnection)
[Code].....
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Mar 9, 2012
I am using the followin code to insert excel data into an access table. Everythig works, but the problem is if my excel file has 10000+ rows, it takes a while to insert. Is there a better way of doing this without installing office in each client pc, that I will be deploying my app?
Private sConnExcel As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:ExcelFilessample.xls;Extended Properties='Excel 8.0;HDR=Yes;IMEX=1'"
Private sConnAccess As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data
[Code].....
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Jun 22, 2010
sample code or project on how to load a data of a particular table in access database in to a data grid view
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Aug 19, 2011
I'm using the following code to import data from a text file into an existing Access table:[code]
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Feb 26, 2009
how to retrieve data's from MS Access table using datagridview?
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Feb 21, 2010
im trying to select a specific bit of data from a table in access using sql in vb.net. My select statement so far is sql = "select [UserAccessLevel] from Member where username = '" & tusername & "'"Useraccesslevel and username being columns in the table and tusername being a variable that stores the username im using to look up the useraccesslevel in the table.
Was wondering if any of you knew anything about select statements.
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Mar 13, 2011
I am trying to insert data into access table using VB.Net 2008. But each time I am getting error: "Syntax error in INSERT INTO statement". I typed following code.
On Error GoTo errores
Dim cn As OleDbConnection
Dim cmd As OleDbCommand
[Code].....
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