am pretty new to VB and i am slowly teaching myself .I am working on a project at the moment which will write to an access database. I have created the database with contains about 40 fields. i Have a form which the user inputs the data into whose controls are bound to the corresponding fields in the database . I have been reading up on what a could but the more i read the more lost i am getting.
View 1 RepliesI'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
View 6 Repliesthis code worked in every form except this form which I named Reregistration the code is working and every thing but the only problem is that the new generated data is not saved in the actual table
Private Sub btnRegister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRegister.Click
If txtPassword1.Text = txtPassword2.Text Then
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Private Sub Table1BindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Table1BindingNavigatorSaveItem.Click
Dim dg As DialogResult = MessageBox.Show("Would you like to continue saving your changes?", "Save Changes?", MessageBoxButtons.YesNo)
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rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary>
''' The TreeViewDataAccess class allows the nodes within a TreeView to be
''' persisted to xml for later retrevial.
''' </summary>
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Access data from a .sdf database (2008)?
View 4 RepliesIn my project the "teacher" must enter grades in the Grades database then save it and click the Semester Average button(btnSA)to display the grades in the database. Well I can't the the data to save. After I completely fill in the grades and click the save button in my tool strip I get the following error "OleDbException was unhandled: Command text was not set for the command object"
Public Class Form1
Dim connStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=GRADEBOOK.MDB"
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i am getting this error and i cant spot the mistake: No value given for one or more required parameters.
my code:
Sub UpdateCustomer(ByVal HCNNO As Double, ByVal Forename As String, ByVal Surname As String, ByVal DOB As String, ByVal Gender As String, ByVal PasID As String, ByVal
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I'm actually making a library system and I'm having problems with my data not saving in the database. It does appear in the DataGrid but after I close the application and check the database, nothing's there. [URL]
Here's the code.
Imports System.Data.OleDb
Imports System.Object
Public Class AddBook
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I have a form as shown below:
And a database as shown below:
It is an inventory program I am doing on the side just to keep track of a small number of supplies, I want to be able to enter a barcode and have the program see if it already is in the inventory database, if not, it will allow me to enter information and add it to the database (That part works - Thanks to member on D.I.C.) If the barcode exists, I want it to fill the form with all the data from the database and allow me to update fields such as date used and used definition
Here is what I have so far:
Imports System
Imports System.IO
'Added For Database
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I know how to pull data from an access database and place it into a combobox, but I am trying to make certain that I dont have multiples of the same information.
Like one column is for countries of origin.
United States
Canada
Mexico
In the combo box, it should only list the United States only once, not multiple times.
rs.Open("select * from CSOptions where OrderNumber = '" & cbstrCurrOrderNumber & "' and OrderLine = " & CBLI, strConn, 2, 2)
If rs.EOF Then
rs.AddNew()
End If
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I have tried it by the following code [code]there is no error in this code, but it didn't work well.so is there anyone who can help me in making it work?
View 1 RepliesOkay what I have saves my stuff to the database. However, when I rebuild my application the previous data is gone. The data is loaded into datagridview using
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My program runs with no errors, but the actual .accdb file does not reflect changes when I make them in the running program. Also when I fill in the text boxes and click the "Add New Item" Button, the "ID" text box displays a -1. "ID" is the primary key in my Access Database.
Imports System.Data.OleDb
Public Class addMemberForm
Inherits System.Windows.Forms.Form
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I've seen used the datagridview to save the changes.
I don't use a dgv, but rather I connect directly to access and when a text field has text in it, it takes that text and searches, and updates various text boxes with the according information (finds a row, and takes all the data in the columns and adds it into their respective box). There are approximately 5-7 text boxes being used at the same time, and only a few will be changed.
How would I go about updating and saving through the VB program?
Here are some relevant pieces of code:
Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=C:\InventoryMusic.mdb")
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I have a function that i use to save a datagridview row to an access database (which works fine) but i was wondering any one know what i should look up to figure out how to set the row that i am saving to a colour IN the access database. So the row that i save is say red in the access database.
View 10 RepliesHow to save image from picturebox1 to access database.
View 2 RepliesI can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesI have been using an Access Database with no problems, using a form (with a sub-form) to input all of the data. Recently the data on the sub-form is not saving to the tables/reports. I enter the data, save and close the form and re-open the record and it is not there. Previously I have been able to save all data using the form and have not altered the form.
View 3 RepliesI am using thprocedure "UpdateDatabaseBySQL"to save data in to my MS Access table using VS 2010. The problem is, sometimes when I retreive the values from the database, they are blank. But my save procedure worked well. If I pause the app for 10 seconds and query,everything works. So what I did was add System.Threading.
View 22 RepliesI want to save new data from access tables to sql tables without overwriting old data in sql. Data table format for access and sql is same. (using Visual Basic).
View 1 Repliesim a newbie in vb.net and i am using vb.net 2008 express edition,,i am creating a project which is importing csv data in my database,
View 5 RepliesOk I can successfully connect to my Access database but I am still learning on how to output that data. Here is the run down.I am designing a page where the user inputs the customer ID and then gets a list of incidents for that customer. Then I would like the user to be able to add a survey about the incident.Problem I am running into is the ability to display this data. I have tried various method. Eventually I want to be able to display the data into a listbox and have them select it and take the survey but I am not near that far yet. Here is what I have on the connection and my attempt which doesn't work to output the data:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sql As String = "SELECT [Title], [Description] FROM [Incidents] WHERE ([CustomerID] =
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I have a MS Access database file that I can view with a DataGridView, but I can not save the changes made. User should be able to modify data, and when pressing the "Save" button, these changes should be reflected on the database. That is not happening.I know this is a common question, but I have read dozens of pages trying yo get this to work.
Imports System.Data.OleDb
Public Class Form1
Dim con1 As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:JaimeTest.mdb;Persist Security Info=False")
Dim sql As String = "SELECT * FROM Table1"
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I am currently working on a vb project. What I am trying to do is reading a XML file and saving all the data in to the Access DB. Once this is done, I read the data from the access Db and display it in the required fields in VB form. Issue is, when i store the value in the access, a weird character is assigned before and after the data. The character is a square box with question mark in it. Also the same character displays on the VB form as well
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After trawling around the net for a good few days, i decided to post something here.
Basically, i've got a problem linking a data source (Access 2007 database) to a VB 2008 project.
I've broken it down to having a problem dragging a table onto my form, when it generates the nav bar, it says "0 of {0}", and the table is empty (despite the actual database containing values)
However, this happens only at home, at college it works totally fine. The only difference that's obvious is that i'm using Windows 7 at home, and Windows XP at college.
When using SQL connections in my program, will I have to open and close the connection and the data reader each time I want to access the database ?
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I'm struggling to work with data in VB 2008, and find it extremely complicated! At first I couldn't even get a database to load, as VB 2008 kept complaining it was created with an older Jet engine.OK, I converted it to a newer Access format that VB 2008 finally accepted.
In trying to find out why changes weren't saved, I found a common problem was VB 2008 wiping out changes.OK I have told the compiler not to copy the older database file back over but to copy newer.Updates then supposedly happened --- no errors were reported --- but the changes were still not saved.It appears the update method didn't exist in the datatableadapter, but I got no error messages about that.
No update done.
I've used the tools to configure the dataset and datatableadapter.Automatic generation of methods like update, add new, delete, etc. were supposedly done.Now, when trapping the error, I'm told the update method isn't a valid one.I found little information on that. It suggested primary keys could be a cause, but adding or deleting a primary key has no effect.I can see the fill method, and it works fine.I can't see the update method. (Apparently it is in SQL which I don't know anyway.)
I keep getting an "Syntax error in Insert Into Statement." error message when trying to save an image to my Access database.
Imports System.IO
Imports System.Data.OleDb
Imports System.Drawing
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