I just need to edit one field on a datarow and save the changes back to the database. My database is SQL Compact 3.5
I tried many methods but change is not saved to database.
Me.taSet.Fill(Me.Dsset.tblQuestions)
Dsset.tblQuestions.Rows(1).BeginEdit()
Dsset.tblQuestions.Rows(1).Item("ExamID") = "EDITED"
Dsset.tblQuestions.Rows(1).AcceptChanges()
taSet.Update(Dsset.tblQuestions)
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..
View 5 RepliesI'm using VB 2010 Express with a local Access DB. I am having trouble determing whether there are changes in a DataGridView to save back to the underlying DB.
The DB has been copied to the project directory and its properties (by selecting it in the Solution Explorer) include Copy to Output Directory: Copy Always, so I know that any changes I make when running a build will disappear on the next build. The problem I'm having is within a run / test session, working with the application.
The Access database has the following connection string, with Application scope:
Provider=Microsoft.Jet.OLEDB.4.0;Data Source="|DataDirectory|Component MI.mdb"
When I create a new data, key-ing in all details and for date as well. So when I click on the button Edit. Yes I can perform the edit function, I can edit everything. Then, once I click on Save, yes it Saved. But problem here in the date all goes back "1900-01-01".
View 5 RepliesDatabase edit then save problem Im trying to make a database and for the most part it works. The form1 has add new button (which goes into my form2 window that adds all of the information there, then I hit save, when I exit it and comes back to the form1, with everything saved. There is a listbox that shows all the names, then I click on anyone of the names and try to edit it and it works, then I hit the save button, it comes up with the error under
[Code]...
Recently I've created a window database program(Tools Inventory); everything works fine except for the following two :
1. It doesn't accept modifications to the existing datas in the column & rows. (Error : Updates require a ValidCommand......)
2. Remove button does not delete the data in the database. It only works in the runtime.
In my project,I used the wizard in VB.NET2008 Express to connect to my database. I have a data connector, adapter, and dataset controls on my form. I have been able to load the information into the dataset, and used the datCustomers.Customers.AddCustomersRow to add a new row to the dataset with information.
I now want to save the updated dataset to the database. I have tried using the adapterCustomers.Update(datCustomers) command to no avail. how to save the dataset to the database?
Dim da2 As OleDb.OleDbDataAdapter
[code]...
Dim da2 As OleDb.OleDbDataAdapter
Dim cols As Integer = Attendance_QueryDataGridView.ColumnCount
Dim rows As Integer = Attendance_QueryDataGridView.Rows.Count
[code].....
I want to edit values in datagrid in VB.NET and also want to save changed value in database. How can i do it?
View 4 RepliesMy code is this:
Me.Validate()
Me.CFTINVENTORYBindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(CFTDataSet)
At first I can insert data into the cells and save it... but when I try to edit the same cell with data already saved in it I get this error...
sqlcelexception was unhandled
There was an error parsing the query.
[ Token line number = 2,Token line offset = 29,Token in error = , ]
I also get the same error when deleting an already saved cell with data.
in row or column..particular(one cell) should edit and change the information...and save to database...
View 2 RepliesI need to be able to save, edit, and delete records in an access database through vb2008. Editing and deleting records works perfect, but I cannot save new records. Can anyone assist?
Here is my code
Imports System.Data.OleDb
Public Class Main_Form
Dim con As OleDbConnection
Dim cmd As OleDbCommand
[code].....
I am using Regex operation by retriving column into Richtextbox and run sevral time of all regex operation ( which is quite good and faster on that) then updating that inti database (Sqlite).
1. Retriving 1 million of record column into richtextbox from database.
2. updating database with that.(using richtextbox).these things killing time.
what to use in place of that.(means what to use for fast preview-run regex - update that edited column into database)
save, edit and delete files in the data grid.
View 1 RepliesI have an xbap application that connects to a webservice to run different stored procedure. The webmethod loads the data into a data table and returns it to my xbap application. My program gives the user the option to manipulate the data. What is the best option for saving the data back to the database?
View 6 RepliesI am having a problem with an application that displays data in datagridview depending on a selection from a combo box.The problem occurs when I want to write the data back to the database.
I get the following error:"Update unable to find TableMapping['Product'] or DataTable 'Product'."
Is this because the table in the dataset is filled in a private sub? If so how do I make it public?
Any ideas what is wrong. Code is as follows:
[Code]...
VB.NET i have only one colum in back end database that is roll. .. Now i want to update a particular data .. the data types is integer.. i has a data like 12 and i ant to update it 13 how can i do..
[Code]...
I have Visual Studio 2010 and wish to create something which will store assets and serial numbers. I have an access datatbase which is where all of the data is currently stored however I wanted to make it easy for people to add/remove and edit assets by using a GUI which pulls data to a from the database. What is the best way for me to go about doing this and where should I start?
View 7 RepliesI have implemented the filestream feature of SQL Server 2008 in a VB.Net application. I can insert files, and then retrieve/view them just fine. However, I have huge problems trying to update a file. Eg. The user selects a file from the grid which I execute via process.start. If that file is a .txt file, the user may choose to edit it. In case that happens, I need to save the changed file back to the database. So far I have failed to do that.
What I do, is take the retrieved file, copy it (cause i got some errors about it being used), and then Process.Start it. After that, via .NET filestream, I convert the file to bytes and try to update the record. SQL Profiler and a manual SELECT on the varbinary(max) column tell me that the file is updated properly, but the very next try to retrieve it I get an unchanged file.
After that I also tried to update the file by changing its File-System Version, but the file still wouldn't seem to update. Does Anyone have a code sample of how I can achieve this operation? Like 500 sites on the internet have examples of how to Insert And Retrieve the file, but not a single example on how to update. This is how my second attempt of trying to update the file via the filesystem looks like. The code for inserting/retrieving is very similar and it works properly. [Code]
What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:
Me.BindingSource.EndEdit()
Me.TableAdapter.Update(DataSet)
It says that update is not a member of the tableadapter... Why is that?
What's the best method for connecting VS2005 and Access Database. I want to ADD, EDIT, REMOVE and DELETE data from Access.
View 4 RepliesI have a lookup table that contains a label that describes the data to be written back to my database. For example:Label = Manufacturing Repair Issue (This is what the user see's in my front-end windows app)Data = Mfg_Repair (What I want to save to the database when the user choses the label)
View 13 RepliesI have a form that adds new contacts. New contacts are added by pressing an appropriate button and they appear as an entry in the list on the form. I try now to add an edit button that will edit existing entries.User will select a given entry on the list and press edit button and will be presented with an appropriate form (AddContFrm).Right now it simply adds another entry with the same title. Logic is handled in a class called Contact.vb Here is my code.
Public Class Contact
Public Contact As String
Public Title As String[code]....
The gist of the program is to:
- Read a CSV file into an array
- Get this visible in a list box, so the values can be:
- Sorted
- Edited
- Deleted
- Added
- Finally save these manipulated values back to the text file
Would love some suggestions and code as to how to get this going, hopefully I'll get the hang of it and come back and fourth for help
Just curious on how i can save information, like settings, and usernames etc. in my app, but i dont have a database? Or say i wanted to create a licenc key for my app, how can i make sure a window comes up before it with a lic. key check or somethingl ike that.
View 20 RepliesDo you have any sample project - OOP In VB.net?
a project that save data in database By oop(Object-oriented programming)
I need to pick data from one database and save it in a different database.[code]...
View 10 RepliesThe following code runs without an error, however, it doesn't save the values PayStatus, ReceivedDate and Comments to the tblProjectPatients. These fields do exist in the table.
Eventhough Yes, No, Inv are set to True or False if checked or unchecked.
[Code]...
how to save and show Richtextbox's data in database and retrive it in saved format and which datatype should be used to save that data. i am using vb.net and MY SQL?
View 2 Replies
