ListBox Update As Data Added To Database?
Jan 15, 2012
I have a form where i can enter new product. In that same form i have listbox where i show the current product from the database.
I want to know how to update that listbox as i enter new product into the database so that user can see the current content of the product table.
my code to load the listbox
Try
Dim ds As New DataSet
Dim cmd As New OleDbCommand
[Code].....
To sum it up, what i want is something that will refresh the current display of the listbox so user can see the actual and updated contents of the database.
with the above code, the newly entered product/data can only be seen when the program is closed and reopened again. Which is not very convenient.
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Jul 29, 2010
Display a Dialog Box that asks for some user input. Take that input and add a new entry to an access datatable. Refresh a List Box that displays the Keys from the datatable. Steps 1 and 2 work just fine. After the following method is executed (without closing the program) I can open the Access Database and the data has been stored to the datatable.[code]...
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Mar 10, 2012
I have two tables: HolidayRequests & HolidayEntitlementWithin the Holiday Requests I have 1 field:DaysWhen a staff member adds a holiday request it is stored as a number in the holiday requests table in days field (there are multiple requests with different days)
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Apr 20, 2012
I have a Datatable where i added data from textbox when i want to edit selected datatable rows from gridview to eidit these values will be showing in their respected fields but when i click update button the only first row in gridview will be updated either i select first row or any other row in gridview for editing whereas i want to update the selected rows data. NOTE: I was design datatable visually under vb.net 2008 designer and the datatable have not any primarykey i am using following code under btnupdate event
Dim i As Integer
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Code") = txtCode.Text
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Description") = txtDescription.Text
[code]....
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Oct 13, 2011
I am getting an incorrect repsonse after an update to a table. In my RowUpdating event I have the following code which builds an Update Parameter to call an SP to update a table. I must be doing something wrong but everything runs fine. My rowsAffected variable reports 1 after the update, but the table never gets the data.[code]I found a solution that is working. On the original DataSource for the update command I needed to add the following.[code]This in essence allows the original data source to call the SP. Note: that the command type needs to stay as TEXT not Stored Procedure as one might think.
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Mar 28, 2011
I've made a dataset using the dataset designer, and I'm trying to add a column to reflect changes made to the database (added a column, nothing fancy). Is there a way to 'refresh' the dataset schema from the datasource without deleting my adapter (and all the methods and queries I've created)?
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Nov 20, 2010
what is wrong with my code? Data could not be added into database.
[Code]...
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May 25, 2009
I new to vb.net. I used following code to add new row in my "customer" table. Following code does not give me any error. Still data is not added to database.
[Code]...
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Nov 13, 2011
I've a question about vb.net application with ms access 2002 database.I use "Add data source" wizard to setup a connection to a access database.my application read text file into a temp data table at runtime.a button click to import data from temp table into one of access table.problem is data is not added at all.here is the code I use to do update
For Each dr In dt.Rows
DataSet1.tbl2.ImportRow(dr)
Next
DataSet1.AcceptChanges()
TableAdapterManager1.UpdateAll(DataSet1)
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Jan 15, 2012
when i add the record it saves and returns the save message box as it should and is viewable in the database where it saves to, but it is not viewable in the text boxes when looking back at the form until i close program and re open it, then i can see the record stored in the database, it just wont update the form,[code]
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Aug 18, 2010
I am creating a very simple Voting System, that will be use on electing new set of officer in a teacher cooperative...
So I have to create two separate program, a Server Program that will manage all the information in the election and a Client Program where voters will vote their selected candidate...
The election officers wanted that the Server Program will display the Voting Results at real time... So when the Voter finished voting, The Voting Result displayed by the Server Program will also be updated every time the Client Program Insert the data to Database....
An action listener in Server Program that will execute if new data is inserted in a Table in the Database made by the Client Program...
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Sep 17, 2010
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
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Jan 16, 2012
I cannot figure out how to change the data in a listbox. I'm being driven completely mad by vb.net, finding it very very complicated.
Ok I have two list boxes on a form that contain correlated data i.e. the first item in the first list box corresponds to the first item in the second list box.
Under the two list boxes I have two text boxes for data entry.
For Example :
LstTagDatabaseLoop LstTagDatabaseSource
TxtTagDatabaseLoop TxtTagDatabaseSource
I want to Add Update and Remove items from the list. If the user selects an item, I want the selected item in the other list to change to correspond. I also want the two text boxes to be udpated with the currently selected item.
[Code].....
however this invoked the selectedindexChanged sub umpteen dozen times and while in the end it did actually update the data, its obviously not the right way.
I found ListViews which perhaps is more appropriate but I couldn't get my head around it at all so returned to trying to use these listboxes. Is there a different object I should be using.
I'm finding vb.net to be too complicated for a hack programmer like myself...
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Jun 6, 2011
I trying to make a code to Delete and Update Access 2007 database after remove a selected item from a listbox in VB 2008. [using "Remove" button that i create] pervious i already make a button to View data from database and Remove from listbox. but i don't know how to delete and update in database.
The code i using now:
CODE:
In the database, i have ID,Name and Age (simple database)
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Apr 20, 2010
This program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
[Code]...
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Mar 18, 2011
i can't update my data at database this my code :
VB.NET
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Try
'Dim ds As New DataSet
[code]....
i have problem when update data, data not updated.
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Mar 11, 2010
I have just started using VB.NET 2005 after a long break.My question is that I retrieved data from access table and showed them on to ListView. Now some of the data has been changed.How can I update the data into database again.
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Jan 19, 2011
My Code:
Code:
Imports System.Data
Public Class Form4
[code].....
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Apr 15, 2009
using dataadpter how to update data in database
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May 12, 2010
I am testing to insert a record to the table from the form by button click event.Data was temporarily hard-coded for testing.There is data grid view opened on the form as well.When the button is clicked, the data was inserted in the data-grid.But after exit out, I don't see in the table.When I run the program, I don't see in the data grid view as well.
Dim newCustomerRow As CustomerLookupDS.CustomerRow
newCustomerRow = CustomerLookupDS.Customer.NewCustomerRow()
newCustomerRow.CustomerID = 123
[code]....
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Apr 24, 2010
how to insert and update the data to the database when i am using window forms?
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Mar 24, 2011
Im now creating an inventory system for my project.
i having difficulty with my project im using combobox to select data from database and i want to update the data. if i selected second row of the data it will update the first row of the data.
eg.
"comboboxitem_name" - red ball pen
- blue ball pen
- black ball pen
"quantitytextbox"- 100
"reorder_quantitytextbox"-20
when i selected the "blue ball pen" and fill the information that i want to update then press the submit button. the red ball pen will update with the information that i want to update to "blue ball pen" and the "red ball pen" will change it name to
"blue ball pen". and now i have two "blue ball pen", one with "red ball pen" information and the other one with original "blue ball pen" information.
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Feb 9, 2010
My datagridview is displaying records from table in database.When I go to add a new record the 'pencil' icon does not appear so when I click on save button update to database table does not take place.code behind save button is
BindingContext(TheatreBindingSource).EndCurrentEdit()
PatientTableAdapter.Update(TheatreDataSet)
PatientTableAdapter.Connection.Close()
i have spent all day trying to sort this ...any ideas and yes my theatrebindsource.allownew is set to true
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Jul 14, 2009
I want to update data into an access database containing three fields of text type.
so in the design i added three text box and one button.........on button click the data corresponding to textbox3 will be updated by textbox1 and textbox2.
then i coded it as follows:
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
[Code].....
It is running and executing good........But finally the data in the database is not updated.........Hence i say the above code does not work......
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Feb 11, 2010
I have a project with a .sdf database include it. The problem is that this database have a lot of data and I have modified some tables adding new columns, etc. How can I update the application without uninstall it and lost all the old database data? Are the some way to update the .sdf database of visual studio with out lost the data.
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Jan 21, 2012
so i just bought a years web hosting with godaddy, and apparently i have one ms SQL 2008 database, is this compatible with VB ? and if so how can i link them together? i need the user to be able to update the database but also read data from it.
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Dec 29, 2011
I have an application in which I want to update only if new data is entered. If no data is entered, then it doesnot update.Any way I can check in the database? If it doesn't update, then it will not give a message that the records updated.
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Mar 5, 2012
I'm doing small system using database 03. I had function to add data into a comboBox. When i add a new data into the the same field using another form, then back to the main Form the comboBox does not update the current data in database..
Codes i tried:
'Form Load
Private Sub FrmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[CODE]...
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Dec 12, 2008
i am trying to update database with updated data in data adapter. here is error message. "Update requires a valid UpdateCommand when passed DataRow collection with modified rows." here is my code.i get this error when i try to update dataadapter with following line.
[Code]...
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Aug 16, 2009
i m unable to update data into my database in vb 2008. the changes are reflected in the dataset but they are not reflected in database. i have set the datasource's copy to output property to copy if new but it is still not working.
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