Create A Data Access Form?
Sep 16, 2009To create a data access form
View 3 RepliesTo create a data access form
View 3 RepliesI have used VB (versions 2 - 6) through many years; however, I am crash-course training myself into the VB2008 / VB2010 world kicking a screaming. I would like suggestions as to what SQL database access method should I focus more on in my learning process without making me feel that I'm a million years behind. I know I have WinForms where I can create a datasourse and drag / drop fields or tables on a form to create a grid (not really what I'm looking for).
My trouble isn't so much designing the form but in how I access the database. Theres XML, LINQ to SQL, ADO.NET, and many other methods. Not only do I need to grasp these methods quickly but I also need to know what type of projects I should create. What I mean is...I was thinking that I would design a WinForm app; however, I see that there are WPF apps and others to chose from. This is getting deep. I know it depends on the project that I'm working on. My plans are to write an app based off of either an SQL Express 2008 or SQL Server 2008 database. This first app will be standalone for now but may later become multi-user. I know I'm far behind on my learning curve coming from VB6. I have read a bit on VB2005 / 2008 / 2010. I own
both VB2008 and VB2010. I use VB2008 at work. I know ADO.NET is still alive but by what I read online, it's a dying method and is only kept for backward compatibility. XML and LINQ to SQL and other methods are all pretty new to me.
I'm trying to insert data from an Access unbounds form to an Access Table using the follwoing code:
View 2 RepliesNew to both Access 2007 and VB 2005. Tried to create a data source with access in vb and kept getting an error about instantiation. Removed Access 2007 and loaded 2003 and no problems.
Even tried to create a mdb file with a save as 2003, did not work.Is there a way to use Access 2007 with vb?
Currently we are using a VB script macro created in word to create some fairly simple forms based off of data entered on a data entry form. I am very new to VB, and I have been able to create many applications using forms, but I have absolutely no history creating reports. I have been reading up on the reports, and it looks like they are designed to use with data sources like tables. I merely want to take either data from the entry form, or from data derived internaly from processing the user entered data and populate a defined report "form". I have been searching, but there is so much on printing reports, that I feel overwhelmed. I am not looking for the exact answer as much as a link or place to look for a sample for what I want to do.
View 2 Repliesi need to make a professional form in vb 2008 to make a full backup and restore for my database file with progress bar and ability to write my backup in CD-room so
View 5 RepliesIm trying to create a form in VB that allows the user to perform queries on a number of tables which are in access.
View 3 RepliesI typically dont create interfaces unless i have to, however in my current application i have to create interfaces in the Data access layer. I'm a in a minor confusion that hwo do i create those interfaces more how to implement them: the following code might make things clear:I have the following class and interface in the data access namespace
[code="vb"]Imports ConsoleApplication8.BusinessLayerImports ConsoleApplication8.DataAccessLayerImports System.DataImports System
Namespace DataAccessLayer
Public Class CountryGateway Implements ICountryGateway
[code]....
1. Is this way implement the interface in the data access layer? (in this case the class CountryGateway access the database.)
2. I have been told that we should create interfaces than abstract classes espcially in the data access layer, is there a particular reason for this?
I have an issue with my access database when creating a simple insert form on visual. When I load the form into the browsers and add the data, it says it has worked but when I look in the database the information has not been added.
View 3 RepliesI try to create a form that managing the access level of user management system.The model I use is the following :I create a connection to database I create a DataAdapter to transfer the data from the database I create a Dataset to hold my data My form consists of the following :A ListBox that list all the access level namesThree text boxes: the first for the record ID The second for the access level name And the third for the discription of the access level Five check boxes:One for writing rights One for the deleting rights One for the Updating rights One for Printing rights And one for Special area access rightsSo what i do is the following :I create a connection string I create a new connection to my database server I create the DataAdapter I initializing the DataAdapter command such as SelectCommand, DeleteCommand, e.t.c.I fill my DataSet with the data DataAdapter get from DataBase I binding my controls to DataSet I setting the DataSource property of the ListBox to my DataSet I setting the DisplayMember to the ACCL_NAME column of the DataTable inside the DataSet I setting the ValueMember to ACCL_ID column of the DataTable inside the DataSetUntil this time all are fine ! ! !The question is :When i try to add a new row to dataset by using the following code i have a problem :
Dim newRow As DataRow = Dataset.Tables("TableName").NewRow newRow("COLUMN_NAME") = Binded Control Value DataSet.Tables("TableName").Rows.Add(newRow)
I wrote an application which parses a website and downloads an mp4 file from website. User can select the path where he wants to download the video. When I try to download I get an exception for the file, Access Denied to Path. When I gave the permissions to folder that I chose, then works fine. How can I resolve that problem? End-User will select the folder. How do I change the permissions?
View 1 RepliesI have a form with a data connection to my access database that shows my music collection, Artist,title,year,chart position, media location & filename.It is set to show only artist & title I have a list box that i can manually load files into to create a wmp playlist i would like to be able to do one or both of the following:
1. drag and drop data from my dataset to the list box to provide a playlist
2. create a playlist from this database that will auto play
Private Sub btnsave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsave.Click
'If inc <> -1 Then
[Code]......
i got an error at the time of execution .
I'm trying to add data from a form to an access database. I'm using this
[Code].....
I 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'm new but will most certainly be hanging around and maybe even answer some posts in other sections. I have the following issue: I have a vb.net web page that places data into an access database. If I leave one of the fieldS blank, (even though Access has a default value of '0' instead of null) when I click to view the results in another page, the page fails with an error.
"System.InvalidOperationException: The provider could not determine the String value. For example, the row was just created, the default for the String column was not available, and the consumer had not yet set a new String value. etc etc" IF I put any figure in the blank field, even if it's 0, the page functions and works. Baffling. So, the data input page really needs to check, 'if nothing has been entered, automatically append the database with 0. Here's some of the page code: (Standard Record Insertion Wizard within DW cs3, plus Validation)
[Code]...
I working on a program that I am trying to create a customer data form.Along with the form I have their vehicles related to that record.Now I have setup a dataset in the form.I am pulling data from the database, however when I enter a new record on the customer part the customerID is in the running order, everything seems to be working on in this table.But when I create a vehicle for this customer I have a running vehicle id.Example: I have in the database 4 customers.IDs 1,2,3,4 customer 1 has vehicle ID1,2.customer 5 has a car there 1st car but the database gives is a ID of 3.I want this customer to ID 1 for car one.My problem might be because it was set in the database as Unique Identifier.Maybe I should make the license plate the unique identifier.
View 4 RepliesUsing this tutorial How Do I: Create a One-to-Many Data Entry Form? as a reference Suppose I have a parameter query called FillByStatus in my "Customer" DataTable and I want to fill the CustomerTableAdapter On Form_Load using this query. So I can do that by using the following
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles MyBase.Load
Me.OrdersTableAdapter.Fill(Me.CustomerOrdersDataSet.Orders)
Me.CustomerTableAdapter.FillByStatus(Me.CustomerOrdersDataSet.Customer, "Active")
End Sub However, when I do that my related DataGridView (orders) is empty, how do I make it so that doesn't happen?
I am trying to insert data into two lables from an access database(2 different tables) by doing a search. I have code that wont work
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
Dim SearchPatient As String = txtNPatientID.Text
[Code].....
I'm reading data from a .mdb access database to a form in my app. However the text is sometimes becoming scrambled as shown belowDatabase:Quote:The resistance of a 2.5mmonductor of length 8m and resistivity p = 1.72
View 6 Replieshow to create a program that can access information held in an excel database and show it in a simple form.
View 2 RepliesI am designing a form that will create a template of data that will later be loaded into another form.From a menu command "Create New Template" I will need to ask how many Fields will be needed for the new template in an input box. If the user would input say 10, then I need to generate 10 labels, 10 text boxes, & 10 combo boxes. Each group (label, Text Box & Combo Box) on its own row on the form.I also want create the data mapping for each of them at this time.Once I have achieved this then I will add a form that will lookup the template name, and row count given from the above form via the database and load the required rows of items for further data entry.
Since I will have a MAX row limit I thought about designing a form using a Table Layout panel with 25 Rows and 5 columns then doing some sort of .visible true/false for the layout panel row after the user input of row/field quantities.Another question is resizing the form around only the visible rows.
for example if we have add a product to that data grid and then we have add another product, i want that another product places at under the 1st product in that data grid and if we add the same product then just the quantity have increase.. TQ so much.. and the field in that top column data grid is..
NoProduct NameProduct Quantity Price SubTotalPrice
For my project i want to i want to export form data to a new database so that i can send it by attaching it to email.
what i want that on click of a button
1) create .mdb file at c:est*.mdb, with the name = "textbox1.text"
2) create table, name = "demo" with column "id" and "job No"
and then i can use insert command to fill the data in the table and email it to client.
I am creating a small program which has a few texboxes which i want to saved in a access database.My problem is i have no clue what code belongs to such button.I have added the database to my datasources, and linked the fields from the database to the textboxes.But thats all i got so far,.Being searching around the net for a few days to figure this out, but no luck.in my access db i got the fields firstname, surename, address1, address2, postcode, phone, email.Each are linked to their matching textbox on the form.
View 2 Repliesi dont know how to show the data in the ms access through visual basic, this is the form, if the details that are entered are correct, the password must popup i want it to show in the visual basic and here is my query, i dont know if this is correct, if you enter the "Question, and Qans" correctly, the password must popup
Dim retrieve = Me.LoginTableAdapter1.ForgotPasswordString(TextBox5.Text, TextBox6.Text)
If retrieve Is Nothing Then
MsgBox("Please the Correct Statement")
[code]....
I have two tables in one to many relationship in an access 2003 database.I am using vb6 and visual studio 2008.I want a data entry form (in grid view) for child table. I want to display & add, Update, delete child records accordingly with parent.
i.e. What I require is One combo box displaying a parent field and corresponding child entries will be shown in grid view. Data entry form for parent table may be on separate form.Is there a full sample source code for above mentioned theme.
I have a program in which I want to have the user enter two percentages and display the data matching the criteria on a new form. The query would be:
Select *
From Corrosion
Where corrpct1 >= {column in database} OR
corrpct2 >= {column in database}
The way I currently have it written is to display only one row of data. I need to display any number of rows that meet this criteria. My current code is:
Private Sub btnDetails_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDetails.Click
Dim form As New frmDetails()
Me.Hide()
[code]....
1. How can I do my query to incorporate the user entered criteria (in the where statement)?
2. How can I display ALL of the data instead of just one line?
i have a access database with two tables, one for customer and one for booking.
I then have a form application i made in VS 2008 which lets a user enter details such as their name phone number ect into text boxes.
All of the information the person enters thoughout the program is shown via labels at the end, all on one form.
Would it be possible to then have a button that when clicked saves all of this information into the access tables into the correct columns, im sure it must be possible i just don't really know where to start.
i have a basic form in vb using .net framework 3.5,when the save button is clicked, it should update the data from the form to the access 2007 database,however, the whole thing runs up to the point in bold,
here it says that "The ConnectionString property has not been initialized" Private Sub Holiday_BookingBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Holiday_BookingBindingNavigatorSaveItem.Click
[Code]...