Sql - Windows Form Not Getting Updates From Database?
Apr 13, 2011
Ive only recently starting fiddling with Visual Basic Express and Sql Databases. Ive managed to get a database up and running, and can query information from it. I have even created a form that can add a new entry to the table im using.The first form has a ComboBox that list the PlayerNames in my table. Form2 allows you to add a new name to the table, but anything I add isnt immediately updated in Form1. I have to relaunch the program to see the new entries. Even then, these new entries dont seem to be permanent as they eventually dissappear.The code I have for Form1:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
.................0......................................................
00
[code]....
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Jan 31, 2011
Currently converting the infamous Windows Update VB Script examples to VB .NET so that I can have a more polished GUI for our end user's as we have to nofity them every step of the way when installing updates (so the built in WUA interaction is not viable for us).
Converting from VBS to VB .NET seems to be more troublesome then I estimated, FYI I am no a full time .NET programmer so I might be making newbie mistakes!!!
So here is the VB Script example from MSDN for searhing, downloading and installing Windows updates using VBS:
[Code]...
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Jan 18, 2011
I am writing a Windows Update Client in preperation for it's use with our Windows 7 OS when we start to migrate this year from our Windows XP SP3 computers. We currently use a vbScript to control the installation of Windows Updates, we dont use the built in Windows Update client for the installation of updates as we need a little bit more control to allow for the deferral of updates being installed and more notification to the end user as to when a reboot will occur.
I want to replace the vbScript with a VB .NET executable as the presentation of information is much nicer, so I took to converting the Microsoft WUA API examples from vbScript to .NET, Following is the the vbScript Example code I am working with, at this stage of development of the application I am looking just to get a count of updates that need to be installed:
Set updateSession = CreateObject("Microsoft.Update.Session")
Set updateSearcher = updateSession.CreateupdateSearcher()
WScript.Echo "Searching for updates..." & vbCRLF
[code]....
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Jun 11, 2011
This is going to sound weird but I was wondering if there is a way to show in a list all of the installed Windows Updates.
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May 31, 2010
I'm trying to figure out if specific Windows updates are installed so I can install the correct ones.I'm currently checking the WindowsUpdates.log file that is located within the windows directory, but it's terribly unreliable.In my search to find an alternative method, I cam across this blog post. It seems like a perfect fit. Unless you take into account that this is VBScript and their querying Microsoft.Update.Session.what class in WMI that would relate to VB so I can pull the info.
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Jul 29, 2011
I was wondering if there is a way to detect if Windows Updates are currently being installed.The reason is that I have written some software that sends my PC to hibernation if is idle for a specific amount of time, but I do not want this to happen if Windows is in the process of updating.
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Apr 21, 2010
Is there any way to determine that a system has automatic updates enabled and has the little yellow security center icon indicating that updates are available? I'd like to drop a little service on one of my servers to monitor for that condition but can't find a good resource to get started.
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Mar 17, 2011
i am doing project of Order Accepting system for five star hotels.Scenario is Waiter will accept order using Window Mobile which is Connected to WiFi present in hotel.I want to communicate to database(Sql Server) present on My Machine (Computer present in kitchen) through WiFi and Add order into table present inside database. This should notify my application present on Compter and should print order. After completion of Order Application from kitchen will notify to waiter about completion. My problem is How to Communicate with database present on Remote computer using WiFi from windows Mobile.
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Jan 29, 2010
I have a main form with datagridview containing a list of contacts:
VB
Public Class Form1
Private Db As New DataClasses1DataContext
Private Sub Form1_Load
[Code]....
After saving, I get the correct message ("Saved"), and the DataGridView in the first form gets updated in real time.
But... when I take look at the data (or close and reopen the forms) the data in the database (SQL server) have not changed! What happens!
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Dec 15, 2011
I got the printing. Now how can I allow users to update the database, such as Add, Change, or Delete records accordingly? Then I am finished with my project.
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Aug 26, 2011
how to check if a field( a cell within a database for talk sake date of birth) has been edited in the past then flag it now this field may not be change for a year but how do i keep a record of that and the flag it if it is change.
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Apr 15, 2008
I have one specific problem, that is relative to DataTable Updates to Database.
Code:
auxDatatable = Mydataset.MyDatatable.GetChanges
Now i'm going to Accept or Reject Changes based on some Criteria. The problem is that I wish to Update Only the Records that in Fact exist on the Database, as you can imagine I was forced to create some Dummy Records in Datatable, to a specific job.
My approach to this issue was to do something like this :
Code:
Private Sub MySub (ByVal auxDatatable As DataTable)
Dim drView As Mydataset.Mydatatable
For i As Integer = 0 To auxDatatable.Rows.Count - 1
[CODE]...
As you can see I tried to Delete the rows that are Dummys, but the rows in fact are not being deleted. As consequence I get an error after that Sub, when i try to make :
Code:
MyTableAdapter.Update(auxDatatable)
This is naturaly caused by the dummy Records.
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Mar 11, 2010
I'm using mysql database..I have forms setup main form has datagrid..you can add to this datagrid and save to datbase with my add form and it works fine. I can delete from the datagrid and it works fine...when I select an account to edit is when I have my issue...form edit brings up the selected account but when I save my changes it doesn't save to the selected account it changes my first account in the database......
Here is a sample of my code
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
' 'Save changes to database and exit
Dim intResponse As String
intResponse = MsgBox("Do you want to SAVE Changes to this record?", vbOKCancel, "Save?")
If intResponse = vbOK Then
[CODE]...
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Apr 12, 2011
I have a form in my application that presents users with a datagridview which pulls data from database-a. I then offer the users the ability to edit that data but what I'd like to do is when they click the save event, that it saves their changes to database-b.
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Oct 1, 2010
what's the best way to handle the updates to the database.For example i have one datagridview that's binded to a datatable (with two fields, id auto incremented and a varchar). The user can do all the operations Insert, Update, Delete.If i insert one row (only the text) and call the update method to save the changes to the database, and after that remove the same row and call the update method the adapter will throw a exception because it didn't update the datatable with the value of the id. So the best way to do this is always calling the fill method after every update?
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May 17, 2011
Since ADO.Net uses a 'disconnected' model where the data available to a single program is just a copy of what is in the database, what is the normal way to handle multiple programs needing to update the same table in a database? The problem I see is that a program can't update unless his copy of the data is the most up-to-date. Are we supposed to read before updating and hope that the update occurs before someone else changes the data?
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May 31, 2010
I'm using a SQL database and I'm writing a VB.NET client application. This application is used on multiple computers at the same time. If one of the clients makes an update to the database I would like to have the other clients to be aware of the update.
Has ony one already done this before?
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Nov 16, 2011
I've got a question below:load data from a table in database into a datagridview,make change in datagridview,and use update function to update change back to tablebut 13 changes, only 12 being update back to databaseonly the top row on the datagridview not being update??
For Each orow As DataGridViewRow In DataGridView1.Rows
orow.Cells(1).Value = TextBox1.Text
Next
[code]......
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Oct 22, 2010
how to implement UI, BL and DAL in a project the way that I see it as a requirement for some projects. The way I am able to do a project now is from a form create an object of a class in which there are properties and functions that do database selects, updates and deletes. Looks to me that doing a project like that is separating the UI from the DAL. In an update button click event I may call Obj. Delete (txtCustID.txt) for example. I don't understand the part of further breaking it down to include a Business layer; in which a vb solution is made up of three solutions.What goes in the BL?Does the BL call the DAL?
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Mar 7, 2010
i seem to have a problem when i try to update a certain record in an Access 2007 Database. I have a small Access 2007 database with 1 table which has 3 Columns and several records. The 3 columns are RecordNumber (Primary Key and it is autonumber), FirstName(text) and LastName(text). What i am trying to do in VB 2008 is implement a search form which when you find a record you can update it. I do not have any problems with the search, but i cannot seem to edit any other record than the first one. For example i search for John which exists, if that record is the 3rd record when i try to edit it whatever changes i make (for example change that to James), the changes i make are made to the first record and not the current one. I tried a lot of things but nothing works, here is my code:
[code]...
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Oct 19, 2011
I have a Data Bound ListBox on a 2nd form, making a selection updates the Data Bound Labels on form1. The problem I have is the ListBox is desplaying the ID not the Title, I have chect all obvios places and find nothing.
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Jun 6, 2011
I am about to finish an application for a client. Now I'm having hard time deploying it since I really don't know how to do it.How do I deploy a windows form application with database?I've already downloaded the prerequisites redistributables. I also want those to be included in the installer.
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Jan 6, 2011
I would like to insert Radiobutton text value to my SQL database. I'm using Radiobutton for gender selection. I tried the code femaleRB.checked but it return a true value on my database. I want the text "Female" shown on my DB.
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Oct 20, 2011
I have a windows form that takes username and password. It validates it with the database I have created that contains the correct usernames and passwords. So I have implemented a code to verify whether the details entered are proper..[code]
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Jan 23, 2012
My Problem is that I am trying to view the database in Vb (windows form) but the image does not appear.All I can see is a small red cross where the image should be.I have tried both Datagrid view and Detail View.
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Jun 28, 2010
Windows form application Access database Is it best practice to restrict user entry via keypress event
then validate all info entered & show error control message
or use dataset partial class columnchange as cannot restrict user entry here Could an experienced programmer suggest best way i actually prefer restricting keypress then loop through and validate all entrys
but want to be right
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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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Jun 21, 2010
i have written this code to inser data in my database table "member "through the form but it is not working if i start debugging the code it gives no error but when i open my database table to see the inserted data it is not working.
Imports System.Data.SqlClient
Public Class Form3
Dim con As New SqlConnection("Data
[code].....
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Jun 9, 2011
The problem has been simplified for the purpose of clarity. I want to make a windows form application that uses an access database. The application will store the list of person's basic details such as name, age and country. The database contains two related tables ie person(id, name, age, country_id) and country(id, country_name) My windows form contains TextBox, DateTimePicker, ComboBox for Name, Age and Country respectively. Now I want to make CRUD operation Programmatically (Not using Visual tools) in the same form with some navigation buttons.
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Jun 30, 2009
I'm filling 16 pictureboxes in a Windows form with the following code:
Private
ub procHaalFotoOpOdbc(ByVal idnummer As Integer, ByVal vakje As PictureBox)
Dim ImageLength As Long
[code].....
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