Data Doesn't Delete From Database, Vb 2005?
Jul 14, 2009
in my form..there's a couple of textboxes..these textboxes display data from the database using databinding method..
when i click on my delete button to delete the data displayed in those textboxes...the data will be gone from the textboxes...but when i check my database..the data is still there....what happen??..how do i delete the data from the textboxes..AS WELL AS from the database?
here's my delete button code
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim intresult As Integer
[Code].....
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Dec 19, 2009
What's the best method for connecting VS2005 and Access Database. I want to ADD, EDIT, REMOVE and DELETE data from Access.
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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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Jun 10, 2010
My apologies I have posted this in the wrong catagory It should be in VB.net, my mistake)Hi guys I posted this question at the end of another topic I started but I think it will be over looked as the origional topic was solved of the dreamincode community You must all be getting sick of my quexstions by now haha I suppose you don't learn if you dont ask.
Anyway I have used the delete sql method to delete data from a database, I want to refresh the data in the form after the record has been deleted. Do I have to close the form and then open an new instance of it? or is there another way I can refresh the data?
[Code]...
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Nov 5, 2010
Assuming I have a folder structure like:
[Code]...
This works fine, unless I have Windows Explorer open and I'm looking at the 'MySubFolder' directory. Then I get an IOException The directory is not empty. - clicking OK dismisses this and then the folder structure is not deleted. Any thoughts on how I can get this to perform correctly (i.e. delete), even when running this code while having the folder struture open in Windows Explorer?
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Jan 5, 2010
I have a list box which displayed the var_field from the database. when the user select a data from the list box and press delete the data should be delted fromt he l;ist box and the row from the database. Im using the following code. but it shows some error called "Object reference not set to an instance of an object."
Private Sub Deletebutton_Fielddetails_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Deletebutton_Fielddetails.Click
Dim form As New Fielddetails()
[code]....
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Mar 1, 2010
I have a DataGridView and i binded its datasource to the datatable.Now i want to edit and delete the data from the datagridview in this way:I did this in asp.net and now i want to do the same in the vb.net.What i want to do is that each dataGridView row will contain two link button called edit and delete(in the above figure they are the imagebuttons of asp.net),when i will click the edit link button then it will change to update and cancel link buttons and the contents of that particular row will be shown in textboxes so that the row can be edited by the user.
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Mar 4, 2010
I don't understand what's going on here I published my project, and when I create new records and save them, everything gets saved and shows up each time I run the program.I open the database in SQL Server and none of the tables have the new data, but it still shows up when I run the program each time.
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Jul 26, 2009
i've download the 101 Visual Basic and C# Code Samples from downloads/details.aspx?familyid=08E3D5F8-033D-420B-A3B1-3074505C03F3&displaylang=en i was going to learn "VB.NET - Data Access - Read and Write Images from a Database" from that 101. the program is written in 2003 the conversion of the problem to 2005 and 2008 failed.
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Jul 15, 2009
in my form..there's a couple of textboxes..these textboxes display data from the database using databinding method...my problem is when i click on my delete button to delete the data displayed in those textboxes...the data will be gone from the textboxes...but when i check my database..the data is still there.....how do i solve the delete button problme???...i want the data to be delete from the textboxes AS WELL AS from the database.
here's my delete button code
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim intresult As Integer
Try
[code]....
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Jun 9, 2011
What I want is that when i select the data from the listview1 it will also delete the corresponding data in the database im using mysql database...these is my code
Dim Button = MessageBox.Show _
("Are you sure you want to delete this Data?", _
"Message", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1)
[Code].....
so far that is my code..it work but in order to delete the data from database i use the datagridview does not what i want ,what I want is that when i select the item in the listview the corresponding data in the listview it will also delete in database... that code i post is that u need to select the data in listview1 and also select the data from the datagridview in order to delete the data in database..
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Apr 8, 2011
I have a Form1 that is the main application form, that display certain data from a database. Then I have Form2 that add/delete data from a specific table in the database.My problem is, When I add data to the database, and save it, it work fine, But, it does not reflect on the main form, after I close Form2. Only when I exit the application, and open it again, it shows. Is there a setting or something I need to do to update/refresh the info added so I do not need to restart the application?
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Apr 19, 2011
I am having trouble removing a row from a table of an access database. I'm trying to remove a row based on a date/time that has already passed. Here is the code I have. When I try to run it I get an error.[code]...
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Jul 22, 2011
I am working in this and I am kinda confused about it, I have to add,update, and delete in the database this is what I have so far.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Jun 21, 2010
how retrive and delete data in vb.net. I am using access database.
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Dec 17, 2009
I am using vb2008 express to work an Access 2003 database. I want to use code to delete the table after I have used it and before I close the program. Is there any code to accomplishg this?
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Jan 14, 2011
I have code on log in form but it only get the latest data on username and password column on my database
Here is my code
Public Class Users
Dim MyLogIn As New myRecords
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[CODE]...
This is my connection:
Imports MySql.Data
Imports MySql.Data.MySqlClient
Module myconnect
[CODE]...
This is my record:
Imports System
Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
[CODE]...
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Jun 9, 2011
how to add, insert, delete and search data in vb 2008 using mysql databases.
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Nov 4, 2011
i'm trying to delete a row in the database with GetDeleteCommand() and DataAdapter.Update().with GetInsertCommand() and GetUpdateCommand() the all transactions works, but with GetDeleteCommand() fails, i mean, "run" onto this instruction but the data still remains in the table.
here is my code:
Public Function delete(ByVal tabla As String, ByVal arg As VariantType) As Boolean
Dim ok As Boolean = False
Dim dataSet As DataSet = New DataSet(tabla)
[code]....
as said before, the all code run without errors, but the data found and "deleted" from my code still remain in the table.
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Dec 18, 2011
I have a problem with the GridView: after I selected the value that I should void, it should be deleted on the GridView. I use this code dtable.Rows.RemoveAt(i) but it's not working.
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Feb 3, 2010
I am new in this forum, also new in VB.Net I need to create a public class for insert and delete data to database Public Class My_DBFunctions
[Code]...
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Jun 6, 2011
my deletecommand delete all my rows whenever i delete a row..but when i view it again the other rows still there and the i deleted is actually deleted.[code]
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Feb 5, 2010
*WeightCheck is a dataset connected to a mdf SQL server file..Datagrid on form is bound to the dataset..This code executes because datagrid on form updates with the deletions..[code]
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Jan 31, 2010
Is it possible to add, edit, view and delete records using a file only (instead of a database) and .Net 2005 (VB.Net/C#)? The concept is that a file that'll work more-or-less like a database. One can add, edit, view, delete and query data to and from the file. The file, either cannot be opened directly or data inside the file should be in some encrypted form so that even if the file is opened no one can comprehend it. Data inside the file can only be manipulated by a front end application i.e. .Net 2005.
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Mar 10, 2010
'm just a beginner who want to learn on manipulating SQL Server data using vb.net. I have already experienced manipulating data in ms access. So I just recycled the code that I used in here. But unfortunately I got this error:Object reference not set to an instance of an object.And another problem is that, I'm not really sure if what I have inputted in the SqlConnection matches what is in SQL Server. Here is a screen shot of sql server management studio express:
Imorts system.data.sqlclient
'declarations
Dim idnum As String
[code].....
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Aug 15, 2009
In a windows form i want to fetch data for the combobox1,combobox2,combobox3 and combobox4 from the BankAccount table and fetch data for combobox5 from the TransferMoney table and fill the dropdown list of these combobox's at the form load event.
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
[code].....
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Feb 26, 2009
This is written in.NET 1.1 and connected to a SQL 2000 Server Database
[code...]
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Sep 2, 2009
currently im stuck at the part where user enter data through form and form pass it to database.but it is just not working.there is a patient database with id,nric,name ,dob,address,telephone, dateofregister fields.Can anyone help me to point out where i did mistake in this coding?
Imports System.Data Imports System.Data.SqlClient
Public Class Addpatient
Dim da As New SqlDataAdapter
[code].....
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Nov 3, 2007
ms sql and been learning by browsing through many online tutorials and guides to complete a system.currently im stuck at the part where user enter data through form and form pass it to database.but it is just not working.there is a patient database with id,nric,name ,dob,address,telephone, dateofregister fields
Imports System.Data Imports System.Data.SqlClient
Public Class Addpatient
Dim da As New SqlDataAdapter
[code]....
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Jan 19, 2010
I did a code to insert a data into a mdb database but I want the data to be saved in the database in an encrypted manner.
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