Add, Save, Delete, Save... Error?
Nov 10, 2010
Coming across a curious problem... I'm using a SQLCE database. In thebindingnavigatorsaveitem I have the generated code.. the validate, bindingsource.endedit, and the tableadaptermanager.updateall.Here's what I'm doing. I create a record and then click save. Then I decided to delete the record. When I try to save it again, I get an error - "System.Data.DBConcurrencyException: Concurrency violation: the DeleteCommand affected 0 of the expected
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Mar 13, 2010
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
[Code]...
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Nov 27, 2010
Code:
Dim cn As New ADODB.Connection()
cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:BackupEon of LightEon Of Light.mdb"
[code]....
' This code not Working :('Error Messege in md.Save()
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Mar 29, 2011
On my add button i still have to add codes that disables my navigation buttons and and my search button... and add codes that will enable them in save button... im still new thats why my codes are just simple if, else if, else conditions that just manipulates enable, visible, text, properties..also if i search my data will be search but my textboxes only shows the searched data.. i still have to add button that will only be visible if the program finds a data... and this button function is to remove the filter..rather than disabling some functions i want a messagebox to prompt the user that this functions arent functionable...
Look at my codes... i find it lame... its kinda irritating always just using True and false..
Public Class moviesForm
Private Sub moviesForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[CODE]...
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Nov 11, 2011
I'm reading data from Excel and processing the file line by line.
If the process succeeds then I need to delete that row from Excel and save it. If it fails, then continue with the next line and so on.
Initially I used OLEDB to read data from Excel, but by using this I cannot delete rows.
I think we can solve this by using COM component.
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Mar 16, 2011
I've got a binding navigater but i can't save and delete records i am using sql how can i get it to work. i can sroll throught the records. This is my code so far.
[Code]...
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Feb 11, 2010
In One of my form i have a EmpBindingNavigator which allows me to save, delete and modify.
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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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Nov 10, 2011
I have a bound combo box with employee profile names. I have two buttons: save and delete buttons.When I edit a selected profile, I hit save and automatically the change is reflected in the bound combo box, but when I hit delete or create new profile, I have to close the app and when I open it I see the changes in the bound combo box.The combobox.Refresh() no workThis is my code:
Private Sub deleteselectedprofile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_deleteprofile_oninsideprofiledittap1.Click
Dim mconn As New SqlConnection("Data Source=(local);Initial Catalog=epmapp_db;Integrated
[code].....
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Oct 19, 2010
I got a situation where I need to update the details of an order. So there is an order, and there are many products in that order, and the way I am updating that bit at the moment is simply 'delete and save'. But what happens is that it deletes first and them saves products which would be fair enough but if anything in save function goes wrong the order leaves with no products. So how would I know if I will get an error?
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Jul 12, 2009
I have a BindingNavigator1 binding to a datasoure. In default, we can add,delete, save data with BindingNavigator1 control. i want to know : how can i write more code to event click of "delete" button(or add , save button) in BindingNavigator1.
Example : i mean i want show messagebox yesno before delete operation is performed.
if result = yes then delete. i tried this but not yet :
[Code]...
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Jun 14, 2010
I have a main form (Form 1) with a menu strip and navigation bar. I use the main form to launch other forms (Form 2) as children of the main form.
All of the children forms contain SQL data sets /grids. I would like (if possible) to use the save button on the main form, to save data changes of the children form to the SQL database.
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Mar 11, 2010
i m using fallowing code for update, delete and save data it's working very well when i save new recored but when i update and delete recored it's showing error message "Dynamic SQL generation for the DeleteCommand is not supported against a SelectCommand that does not return any key column information."
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If thismode = 0 Then
row = ds.Tables("state").NewRow()
row.Item("state") = TextBox1.Text
[code].....
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Jul 7, 2010
When i click on ADD it changes to SAVE and disables other buttons DELETE UPDATE SEARCH.When i click on SAVE and if texboxes are empty it brings an error,when i click search and i want to cancel the search from the inputbox it brings another error i also want to add cancel button or refresh button.How can i make this project to run well. WHere did i go wrong
[Code]...
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Jun 21, 2010
I'mvery new to VB2008 and have basically no idea regarding much of coding. I have attached a copy of my form. Basically, I have a db named "employee.mdb" with table "Employee". It has 3 fields Name, Dept and Designation. I want to connect my db with the form and want the following functions (when the respective buttons are clicked)Add: Add a new record to the db and save it without overwriting an existing record.Delete: Delete the selected record from the dbSave: Save all details<<: Move to the previous record>>: Move to the next record. I hope I have explained myself clearly
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Apr 14, 2009
I am doing a project on creating a database using vb.net. I need to be able to add records, save, delete and retrieve these data. I am a beginner so far I have created the design I need to be able to link many forms such as order form, find customers, add customers etc. How do i go about this.
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Jun 8, 2011
save, edit and delete files in the data grid.
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Nov 15, 2011
i found in internet, many examples are regarding insert only one image. but now i want it to have multiple uploaded images that we can delete and view it first before we save it on database. how to store the images uploaded?
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Mar 13, 2011
I 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].....
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Apr 13, 2012
I am making some kind of calendar where I can add tasks, so I can easily organise my tasks. For it to complete, I have 3 things I can't figure out how to do it:
1. When I launch the program, I want the items in my listbox to be sorted alphabeticly.
2. I want to save the items in the listbox, so if I close the program and reopen it the items are still saved in the listbox.
3. The items in the listbox all start with a date, fe. "13-4" for today. If that date already passed I want that item to be deleted.
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Jun 3, 2011
I am using MS Access 2007 as database and VB 2008 to build an application to show the content of 2 tables as a single table.I have two tables in MS Access and i have linked both the tables using "ID" as primary key(1st Table),foreign key(2nd Table). I used Query Wizard to show the data of both tables in a single table(3rd Table).I am able to view the content of all 3 tables using datagridview in vb 2008(Using Code), but i am unable to add,delete,save and search the content of the table using code. My concern is,i will be able to do all these operations using codes only.Would you please help me out in this.
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Feb 2, 2010
i'm making a webbrowser, curectly in version 2. 6. But i need some codes before i can release it.
-Source Code
-Save page as
-Delete Cookies
And if you know some more properties for the webbrowser, like options.
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May 29, 2011
modify code to insert the data to MS SQL and save changes when click save button for the second time?
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Jun 10, 2010
Dim sw
As StreamWriter
Dim flagX
As
Boolean
[code]....
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Dec 27, 2010
how to code for the save button in vb.net datagrid view by using insert into sql and update sql statements (it should be able to insert & update the data grid and save the changes) when the save button is clicked .
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Apr 20, 2010
How to save all the data displayed in DataGridview( 2 column, no primary key) and have a button and
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Jul 17, 2011
tell me a way that i can save the stuff written in 3 text box (Name,Address,Bday) by using a command btn. And then finding all of their information by just entering Name using another button.
any help would be grateful.
please and thank u
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Jun 18, 2012
I am working on desktop application. I had created number of dynamic textbox and label and I want to save that data on clicking the save button.
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Oct 23, 2011
I am wanting to find out how to use the Win32 hooks to allow me to add extra save locations to the save and open dialog box so as to allow as an option for files to be saved directly to a database rather than a file system.I have tried looking online but can't find anything remotely usable for this, the only data on hooks that I can find involves Window operation hooks, mouse, leyboard, and shell hooks, nothing to do with files.
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Feb 7, 2011
I'm creating a program and i want it to secretly save when the user clicks on save.
In other words, i have made it so that it saves twice. Once for the user to read (like a fancy copy) and another that the program uses to open up the form.
Currently when pushed, 2 save dialog boxes come up after each other. I don't want this to happen. I want 1 to come up (the user friendly, fancy version) which is the easy part, but i also want the other 1 to save automatically and secretly without asking the user to set the destination.
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