VS 2010 Retrieving Data From MS Access Backend DB?
Jun 11, 2011
I am trying to retrieve data from a Ms Access backend DB. However, for some reason it is not working. Hence me asking for help lol. Here is my good faith effort
Public Class Form1
Dim dsMenu As New DataSet
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
I am trying to build a front end for an access database I created I can connect to the database but when I try to pull data into a data grid view I get no results Here is the code what did I do wrong(I'm also new to vb)
search Private Sub searchbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles searchbtn.Click Dim srval As String Dim type As String
i have two item in form it is---1 is textbox and 2nd is combo box.now i have single value in textbox but there is a multiple value for a combobox with is totally depend on a value of textbox.*i am already add data to the backend files ... in which 1 columns that is called column A it's value is for textbox and 2 column that is called column B it's value for combo box When i write in textbox it's dependent ALL value can be get in the combo box.Can any one solve my problem..
We are thinking about changing our current database system, MS Access 2007 front end and MS SQL Server 2005 backend to using a higher level language such as Visual Basic .Net. I wonder if this is the BEST solution for data management? Currently, among others, we have two big database programs that handle more than two hundred users and it's crashed often. That's the reason we think about changing to something that can handle these database programs effectively preferably using MS technology such as .Net.
Below is my code for login page I would like to show login user detail on home. For login my code works properly but does not show currently login user show following error "NO data exists for column/row".
[/CODE]
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Login.Click RetrieveUserPass() End Sub
i am working on a module in vb 10..i have to retrive data from the database between two dates...i have used the following code but not able to get ny output,,nt even an error
Imports System.Data.OleDb Public Class Form4 Dim con As OleDbConnection
i want to retrieve my data from my ms access database and i it gave me this error..
"Index was outside the bounds of the array."
i put my code on my radio button function because, what i wanted to happen is when the user selected the "vote by party list" selection the party list names will automatically load on the activated combo box.
here's my code.. Private Sub rbPartylist_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbPartylist.CheckedChanged If rbPartylist.Checked = True Then
Public Class Pizza Public Sub New(ByVal name As String, ByVal cost As Decimal) Me.Name = name
[Code]....
But I want the Cost property to be displayed in a label as I add each item into a ListBox. In context, I add an item from a listbox into another and when I do the Cost of each item will be added into the label. Like a checkout system and that's the running total.
I have built an application using VB 2005 express edition with backend Ms Access 2000. In main form(which is loaded on startup), I am having 9 datagridviews, each bound with databindingsources. I am refreshing this data every 15 seconds by refilling the table adapters and updating the datagridviews.Now, this access database is shared in the network and is accessed by about 5-6 users concurrently. There are other forms which are used to edit the data.My problem is poor performance of the application. Its very slow in opening up forms, not responding sometimes and using the network resources fully.
i am using thickbox in asp.net and everything works fine. I load it, have textboxes and dropdowns in it. I also made modal=true, so it only closes when i click the "Thank you" button. The problem is that behind in the aspx.vb file, i need the data from the thick box, so i can insert, update in my database. How can i do that? Right now all that is happening is that onclicking the button the thickbox closes, but how do i send data to .vb file in backend?
can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
I used a class MyList and with the Help of this MyList the combo box named cboCity was filled with City Code(like 1001,1002,etc..) as Value member and City Name (like Canada,California etc...) as display member.
Public Class MyList Private _dispName As String Private _valMember As Integer Public Sub New()
[code].....
The value members 1001,1002,1003,1004 get inserted as per cbocity(combo box)display name selection , into the database and during the retrieval of the record the value member is obtained and based on that for eg:when i get 1001 the selected item should be Canada.I tried many ways while fetching the record and set the selected item but all fails .
I have a problem loading data to a tree view control using SQL SERVER db as my backend...i just found out that sqlserver dont accept multiple SQLDATAREADER
The code below works in SQLCOMPACT EDITION..
CODE:
I have use this code in my applications using SQLCE as my backend, but when i transfered to sqlserver it doesnt work because of the datareader..
Output is like this Quote2011[January][February] 2010[January][February] something like that
If i put it in a single query(sqlYear & sqlMonth), the ouput will be like this Quote2011[february] 2011[january]
I am developing an app that uses a sql backend database (hosted on a different machine).The app I am developing will be run on 10 different workstations simultaneously.Sometimes the app will change the database in such a way that the database needs to initiate a workflow process and I'm not sure of the best way to do this.Also, when database changes happen, how does one best notify the other app instances that the change has happened, so they know to refresh their data? I was thinking that triggers could help initiate the workflow but it might be nice to develop the actual workflow in .net code.Should I write another App to run as a service on the server and do the work and also to tell the client apps when things change?
when this button is click, it will retrieve all the records in different fields in MS Access 2007 and display onto the RichTextBox. But when i run the code and press the retrieve button, an error occurs. (NullReferenceException was unhandled. Object reference not set to an instance of an object.) Plus im sure my code to display records on richtextbox is wrong as i created another project purely with a button and a richtextbox, only the last field in access is displayed.
Imports System.Data.OleDb Public Class Form1 Inherits System.Windows.Forms.Form
Am using MS Access as my back end and I am having a table called "Dept" with 2 columns (dename & cname). In Vb.Net when I click a command button, all the data's of the first column should be displayed in ListBox1 and the Second column in ListBox2. I do not know how to proceed
I have a problem when trying to retrieve records from my Access database through WCF. In my application the user enters a Customer ID and the function then searches the database and retrieves all records related to that customer. However, it isn't working as it should. The code behind the search button is as follows:
Private Sub SearchButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SearchButton.Click
[Code]...
this code isn't doing as it should. The DataGridView should display the records relating to a customer but nothing is being returned at all, I'm not even getting any error messages. I've been looking at it so long I must be missing something ,
rs.Open("select * from CSOptions where OrderNumber = '" & cbstrCurrOrderNumber & "' and OrderLine = " & CBLI, strConn, 2, 2) If rs.EOF Then rs.AddNew() End If
I'm trying to retrieve record data from an MS-Access database and store it into a variable. i'm using this SQL command to query the database: Dim cmdRead As OleDbCommand = New OleDbCommand("SELECT UserID FROM [User] where Username=?", conn) How do I do it in VB.NET to read data from the UserID column (in the db) and store it into a variable in VB.NET?
What I basically want to do is to retrieve the UserID so that I can then retrieve the Name and Surname of the user from the same table.
Note: I'm using ASP.NET with Web Develop 2003 and an MS-Access 2003 db.
is there a way in storing image and retrieving images using ms access and display in picture box randomly or just like a slideshow?which slides form left to right?or vice versa..i have some codes here but i does not display.
To retrieve a list of Views in my Access database, but now I want to retrieve the results based on a selected View. Is there a correct method in doing this, or do I take the SQL Statement from the DataTable returned for each row?
Although a few people around here have said that Dates are not a huge deal that they're simply data, I always seem to get stuck on them, and my current issue is no exception. I am trying to save/retrieve data between my Access 2003 data and my VB2005 form. I have tried any number of combinations (even the forbidden Value.ToString, and having the Data Type in Access as string, and although it worked fine for saving the data, it doesn't work for loading it back into the form.). Here's my code for saving the data to the database: