i am just developing a library management system as one of my project. i using vb.net 2010 and the MS Access 2007 as back end. when i save some records into my database through my application it is correctly saved and i confirmed it through opening the relevant table in the database. but when i restart the application all the entered data were missing.
View 1 RepliesI have an application in which I want to update only if new data is entered. If no data is entered, then it doesnot update.Any way I can check in the database? If it doesn't update, then it will not give a message that the records updated.
View 3 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
[Code]...
I've deployed an application inside a corporate network and I want the update process to require less attention from users. Giving them a choice to update is not a porogative.I've written code to detect when new updates are available automatically rather than letting ClickOnce check on application start. I'm wondering if its necessary to restart the app after the update has completed. Currently I invoke at the end of my update script:Application.Restart()
But what if (to make the update process more transparent for the user), I performed a 'silent' update in the background on a separate thread, and then displayed an icon prompting the user to restart the app to apply the changes? Would it work this way?
Furthermore, if I ran my custom InstallUpdate() process on a timer, say every 2 hours, would ClickOnce be happy to continue to update for every new version that was released even thought the user has not restarted (and I'm expecting the updates only to apply once the user restarts the app)?
I was trying to use application.restart() to restart my application after downloading a new update. It seems to run into the problem where it is trying to start the new application before the original is closed so it errors out and never starts. After reading through some threads here I determined the better way to handle it would be
application.exit() process.start(application.executablepath) This didn't work and gave me what seems to be the same problem. I would also like to note this works fine when running the application through visual studios, it is only when I try to run this independent of VS2010 that the application never restarts.
i just write code for application, in which data is get by user and entered data is to print in a particular format?give me a code for vb.net button by which after click on it will print entered data?
View 1 RepliesI 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?
I dont know use application.restart() in vb.net i dont found this command
View 2 RepliesI'm using my.settings to store different communication parameters. After changing parameters, for several reasons, it's easier to restart the application then to re-initialize all objects/variables/etc using program code.
When I change my.settings and use save to save them. When I quit the application and manually start it again, the newly saved settings are used.
When I use either .restart, or application.exit in combination with process.start. The application will use the old values for my.settings.
If I read up on .restart there's a remark mentioning that it will restart the application using the initially used settings.
Before restarting the application, I manually checked if the new settings were really save to the user.config file, and they were.
My question: Is there a way to restart the application using either .restart, or application.exit in combination with process.start which will use the newly saved my.settings values?
Is it possible to restart your application with a button press?
View 1 RepliesWhy doesn't the database seem to update when restarting an application after some changes?
remember to mark the replies as answers if they help and unmark them if they provide no help.
Welcome to the All-In-One Code Framework! If you have any feedback,
Is it possible to restart a VB.NET application, but with different command line arguments than it originally had? Here is the challenge. I want to write a single instance application. If the second instance has the same CL args as the first, then the built-in behavior is fine (second instance never opens, e.BringToForeground=True brings 1st instance to foreground, everything is great). But if the second instance has different CL args, then I would like the first instance to close and the second instance to start. However, once you mark a VB.NET app as "single instance only", it appears that you can never get the second instance. I think: OK, fine, I can just restart my first instance from the StartupNextInstance event. But how do I use the new command line arguments from the second instance? The Restart() method does not take CL args that I can see.
View 5 RepliesI have a picturebox and I want when i change the image on picturebox and restart application it be the same we choose....
So: I want my application save image of picturebox ....
I'm using my.settings to save the load time of the solution. When my.settings.load_time value is changed and use my.settings.load_time.save() to save them. When I quit the application and manually start it again, the newly saved settings are used.When I use either application.restart. The application will use the old values for my.settings.Is there a way to restart the application using either application.restart which will use the newly saved my.settings values?
View 6 RepliesI have been working on an Order management System using VB.Net and Microsoft Access as the database, But i am having problems updating the database through my Visual basic Application (I can only view my Microsoft access database but i can not update it through my visual basic application).
View 3 RepliesIn my code the application will restart using the Application.Restart statement from another form named frmDatabase.
The application seems to restart while debugging but yet the dataset, tables etc which is declared right below the class declaration for the startup form seems to fail initializing when the restart is done.
Compiling and running the application works like a charm and there is no error like this when running the executeable.
I also Inserted a breakpoint in the Form_Load event and the debugger seems to skip all the statements when the application is restarted all the way down to where the exception occurs.
Declarations:
Public Class frmMain
Public objConnection As New OleDbConnection(strConnectionString)
Public objDataSet As New DataSet
Public objCommand As New OleDbCommand
Public objDataAdapter As New OleDbDataAdapter(objCommand)
I'm using my.settings to save the load time of the solution. When my.settings.load_time value is changed and use my.settings.load_time.save() to save them. When I quit the application and manually start it again, the newly saved settings are used.
When I use either application.restart. The application will use the old values for my.settings.
My question is.. Is there a way to restart the application using either application.restart which will use the newly saved my.settings values?
i can't update my data at database this my code :
VB.NET
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Try
'Dim ds As New DataSet
[code]....
i have problem when update data, data not updated.
I have just started using VB.NET 2005 after a long break.My question is that I retrieved data from access table and showed them on to ListView. Now some of the data has been changed.How can I update the data into database again.
View 1 RepliesMy Code:
Code:
Imports System.Data
Public Class Form4
[code].....
The
vb.net
For i As Integer = 0 To recorderInformationForm.DVRSDataGridView.Rows.Count - 1
strsql = "UPDATE DVRS SET DeviceName = ?, IP = ?, Notes = ?, " _
& "LastStateOnline = ?, TimesOffline = ?, port1 = ?, " & _
"port2 = ?, port3 = ?, port4 = ?, port5 = ?, port6 = ?, port7 = ?, port8 = ?, port9 = ?, " & _
"port10 = ?, port11 = ?, port12 = ?, port13 = ?, port14 = ?, port15 = ?, port16 = ? WHERE DeviceName = " & recorderInformationForm.DVRSDataGridView.Item(0, i).Value.ToString
[Code] .....
The Error:
Syntax error (missing operator) in query expression 'DeviceName = 001a'.
on line: ocmd.ExecuteNonQuery()
I think it might be something with the parameter symbol (?) and the WHERE clause but not sure..
I have an application with a splash screen which gets shown before the application starts. One of the requirements of the application is to allow users to restart (or atleast clear the form) so that other test cases can be ran. Because there are so many forms and variables, we elected to simply call Application.Restart() to accomplish this.
What we would like to do now is disable the Splash Screen when Application.Restart() is called. That is, only show the Splash Screen when the application is initially started, not when it is restarted.
I developed a chat application with an attendant chat server. Everything is working fine. The issue now is the fact that whenever the chat server goes down (for instance, the server system shuts down as a result of power failure or some other problem), by the time the server system come back on, the chat server would have to be restarted manually.
I believe (and I know) it is more appropriate for the chat server application to restart itself when the computer comes back on (and of course regardless of who is logged in and of course, even before anyone logs in). I have a batch file that executes the chat server. My attempt was to create a windows service that start automatically and runs this batch file using a Network Service account on the server system. Although, I'm having a hard time with this (temporarily), I would love to ask if there are any alternatives to using a windows service.
Every time I compile my application, during install I get the error:Cannot download application, the application is missing required files
View 3 Repliesusing dataadpter how to update data in database
View 2 RepliesI am testing to insert a record to the table from the form by button click event.Data was temporarily hard-coded for testing.There is data grid view opened on the form as well.When the button is clicked, the data was inserted in the data-grid.But after exit out, I don't see in the table.When I run the program, I don't see in the data grid view as well.
Dim newCustomerRow As CustomerLookupDS.CustomerRow
newCustomerRow = CustomerLookupDS.Customer.NewCustomerRow()
newCustomerRow.CustomerID = 123
[code]....
how to insert and update the data to the database when i am using window forms?
View 3 RepliesIm now creating an inventory system for my project.
i having difficulty with my project im using combobox to select data from database and i want to update the data. if i selected second row of the data it will update the first row of the data.
eg.
"comboboxitem_name" - red ball pen
- blue ball pen
- black ball pen
"quantitytextbox"- 100
"reorder_quantitytextbox"-20
when i selected the "blue ball pen" and fill the information that i want to update then press the submit button. the red ball pen will update with the information that i want to update to "blue ball pen" and the "red ball pen" will change it name to
"blue ball pen". and now i have two "blue ball pen", one with "red ball pen" information and the other one with original "blue ball pen" information.
My datagridview is displaying records from table in database.When I go to add a new record the 'pencil' icon does not appear so when I click on save button update to database table does not take place.code behind save button is
BindingContext(TheatreBindingSource).EndCurrentEdit()
PatientTableAdapter.Update(TheatreDataSet)
PatientTableAdapter.Connection.Close()
i have spent all day trying to sort this ...any ideas and yes my theatrebindsource.allownew is set to true
I want to update data into an access database containing three fields of text type.
so in the design i added three text box and one button.........on button click the data corresponding to textbox3 will be updated by textbox1 and textbox2.
then i coded it as follows:
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
[Code].....
It is running and executing good........But finally the data in the database is not updated.........Hence i say the above code does not work......