DataSet Not Displaying Add/Update/Delete From Form
Feb 17, 2010
I'm using Microsoft Visual Studio 2008 to create an application (.VB). The application connects to a Microsoft Access 2007 database. When the user starts the application, the application pulls in the data from the database via the "TableAdapter.Fill" method. The user can then add/update/delete records in the form and those changes are saved and confirmed in the database. The problem is when the user close completely out of the application and restarts it, the modifications that were made and originally sent/saved to the database are wiped/deleted. It appears that the dataset in the application never saves the modifications and when the program restarts it uses the data that was originally loaded into it during the design/build phase of the application.
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Jun 21, 2010
I am having the same problem <as this >> when i update my record in Access Database. It is successfully updated the record in the database. but the dataset in my project is still not updated. I am using vb 2005 to develop the application.
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Mar 22, 2012
i going to add, update and delete records on xsd file (i got this xsd file through Data Sources Tab, i add new data source my VG.mdb)
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Feb 18, 2010
I am using UltraGrid for inserting data in table. The problem is that i need to do insert,update, delete with web service. I am getting dataSet from web service and display it into grid but when I do some changes on the grid for example insert or update data, I need also to send new dataSet to web service so that web service do update data.
[Code]...
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Mar 21, 2010
How to perform add, edit, delete in a dataset that will update the database as well?
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Nov 29, 2010
I want to know how to Update / delete the table records in ASPNETDB.MDF in single update / delete query ?
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Oct 7, 2009
I am not sure if I can do update, delete and insert in one form. The problem is that in this one form I have 3 textbox and 1 combobox which the user have to enter each column and click on the submit button which is for insert. So how can I do this with delete and update.
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Jun 12, 2011
I am trying to update my form once the delete button is clicked. There are several fields like Name, Date, Date of Birth and so on. Once I delete a record I want the form to automatically load with new / updated data. This form fetches data from MS Access using OLEDB I have spent a long long time trying this but did not get any solution.
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Dec 29, 2010
I am creating a form that creates new users and then updates them to a dataset, I have done this ok, but I am getting a runtime error when I delete a record. Please see below the exception being thrown
"Update requires a valid DeleteCommand when passed DataRow collection with deleted rows"
My code below
CODE:
So I know I need to add a delete command, but how do I write this in code and do I write it in the saveitem click event? I guess I would because the app crashes when I click save to update the dataset.
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May 11, 2012
I have a Windows Form application with a form that has an underlying data set. When the users click a particular button, the code clears some fields on the form but also is suppose to update a value in the underlying dataset on a field that is NOT displayed on the form.
In VB6 and VBA this is very easy to do. I simply says Forms!formname!NameOfUnderlyingFieldNotshown and pass it the value. How do I do this in VB.net with a Windows Form and underlying dataset?
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Apr 12, 2011
I have written some functions that I have in a module. In one of the functions I would like to update a table that is in a dataset. I would like to do this with this function and not from a form class where the table could be bound. I need to call the function from various places in the application.
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Mar 6, 2009
I have the following code, I just want to create a dataset add some records and display it.
Make the DataSet.
Dim scores_dataset As New DataSet("Scores")
' Make the Students table.
Dim students_table As DataTable = scores_dataset.Tables.Add("Students"
[Code]...
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Sep 1, 2009
I have a table in a databases that contains 12 rows. I am loading a runtime dataset with that table. The result are displayed on 2 different controls. The first one is a DataRepeater and the second one is a DataGridView. The DataGridView displays all 12 rows just fine.
The DataRepeater does not. Some of the 12 rows will be blank and some will have the data. Sometimes I won't see any data until I completely cycle the scroll bar to the end and then back and still some of the 12 rows will be blank.
[Code]...
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Apr 10, 2010
I created a DataSet in the DataSources section by accident but now I cant seem to be able to delete this dataset. How can I delete it?
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Jan 1, 2010
I am using VB.NET 2008 and I want to delete an unused table from the dataset. When I do this I get error messages which seem to originate in the Table Adater Manager on the various forms. The only way I can figure out to correct this is to delete the table from the code after deleting it from the dataset designer. But it says that you shouldn't do this.
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Nov 29, 2010
I have customer/order form.When i delete a record from datagrid.It deletes the record but when i refresh the page or run the app again it comes because i think it just deletes temp from the grid not from the database.How do delete it from the database?[code]...
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Nov 8, 2011
I'm currently trying to delete data from a dataset/datasource/database using visual basic. So here is the run down: I've built a program that can add, delete, and modify customer information from an Access database and I just got the add function working. Meaning, I can now add customers to the database and it is sticking to the database. I re-ran the program and even restarted the computer the computer and the data is in the database. This works fine. However, now I want to get the delete button working but I'm not sure why it isn't deleting some of the fake entries I made just to test out the add feature.Here is the code I am using:
Dim delCompany As UMD3.CompaniesRow
delCompany = UMD3.Companies.FindByCompany (NOT SURE WHAT GOES HERE)
delCompany.Delete ()
[code].....
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Jun 5, 2010
I need to pick all data in my application from my database and use it in my form
my question : how to pick all data in my application then i use it
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Nov 3, 2010
I am trying to work programmatically with a dataset. The tableAdapter was created by dragging and dropping the dataset on my form, and then deleting the binding navigator and dataviewgrid. The problem I am having is when I am trying to delete a record that is DBNull. The dataset.delete( ) call creates fields for each of the fields, along with their data type (say Description as String). but I get an error whenever the field has a DBNull value.
CourseTableAdapter.Delete(DBDataSet.Course.Item(1).CourseID, DBDataSet.Course.Item(1).CourseDescription)
The error is Throw New Global.System.Data.StrongTypingException("The value for column 'Description' in table 'Course' is DBNull."I do have Option Strict On, but the problem exists even if I turn it off.
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Dec 31, 2010
I have had some reall problems with this. I have a form with a datagridview, now I can add new records and the dataset will update fine, but it wont update when I want to delete a record.[code]...
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Jan 4, 2010
Im using a dataset to add records into an xml file.what i want to know is... can you use a dataset to update a existing record in the xml file?if so can i get the dataset/row to reference the specific "record id" i am wanting to amend?
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Aug 4, 2010
I am working on project. i am using vb.net and sql server 2005. in my project i have a form which records student details. so if i want to update the record of an existing student, i delete the record and insert a new record to the table with the same identity column value using IDENTITY_INSERT. is this ok if i do it like this.
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Jan 5, 2009
im having a bit of trouble with the delete and add record for my database. [code]The error im getting is Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
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Mar 9, 2012
add new records into access but the uploader didn't add any delete and update button. im hoping that anyone in here can continue he's work. because he's not active on youtube anymore and i tried to message him but not replying..
this is the code below i just need the delete and update button.
Private Sub add_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
con.ConnectionString = "provider= microsoft.jet.oledb.4.0; data source =..VG.mdb"
con.Open()
[Code]....
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Jun 18, 2012
i'm new in vb.net and i have problem with my project. cthis problem.
-update button
Dim con As New OleDb.OleDbConnection(My.Settings.TREViS_03_ConnectionString)
Dim com As New OleDb.OleDbCommand
[code].....
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Sep 27, 2011
a problem for update and delete statement without an error. When i Update or Delete Data Does not occur.This is my code for Update:
With cmd.Parameters
.Add(New SqlParameter("@Id", lblid.Text))
.Add(New SqlParameter("@LastName", txtlastname.Text))
[code].....
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Sep 21, 2009
I have been on this for a week, with no luck, I keep getting the same error at the same place. IBasically, I join 3 tables together for reporting, I update one of the tables while reading thru, after I want the updates to stay.The error is something like "Update requires valid update command on Datarow".[code]
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Dec 18, 2009
Tell me what happen when i do following code?
SqlCommandBuilder1 = New SqlCommandBuilder(SqlDataAdapter1) SqlCommand1.CommandText = "select * from phieumuonsach " SqlDataAdapter1.InsertCommand = SqlCommandBuilder1.GetInsertCommand SqlDataAdapter1.Update(DataSet1, "phieumuon")
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May 12, 2010
Today i have been checking out the concept of datasets and i like the way they work except for a minor issue i have with it.The following code should get a databasetable and put it in a dataset and return that set to the user.[code]I submit the table name and it will select it, read it and fill the dataset with it, then return it. And it does exactly that once.If i try to re-read the same datatable it just returns the exact same dataset as the first time yet i am 100000% sure that i changed it .
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Aug 17, 2009
So I'm not familiar with much vb code but I was hoping someone my spell out something pretty generic as far as updating a database. I'm pretty sure I've successfully edited rows but when i'm using my database update i get an error, probably just incorrect syntax. This is what I have so far...
[Code]...
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