Auto-Update On Form Load?
Mar 26, 2012
I'm creating part of a program which calculates vacation hours multiplied by accrual rate. As of right now all parts of the form are functioning and saving/retrieving data from a csv text file. My problem is that I'd like to bring the process out of a button.click event and into Form_Load. Currently when I click a listview item (lvwData.SelectedItems) it populates a textbox (txtAvail), then recalculates the textbox value based off my formula (hours) and updates the listview's 4th column item. To update each column daily, I currently have to click each row, then my button, then move onto the next item. I'm looking for a way to grab the 4th column, recalculate it and update the listview without having to select each row.
[Code]...
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May 8, 2012
What I have found is that ifAutoscalemode is set to DPI or Font, the form Load event is raised during the form constructor (sub New). When autoscaling is not active, the form Load event is not raised until the form is displayed (Show method).This change of event sequences caused various errors from code I had in the Load event for various forms because the controls on the forms weren't completely initialized. I have worked around the errors for the most part so it isn't much of a problem anymore but it is forcing me to change some coding habits (maybe not good habits) that I have been doing for years.
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May 6, 2012
I have a class as follows:
Public Class BillAmounts
Implements INotifyPropertyChanged
Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged
[Code]...
However, the issue is that TOtalAMount is getting updated automatically but FinalPrice is not getting updated. Any reasons/mistakes I have done. I have tried it a lot in few ways but could not get that working. What i did not understand is that Total amount is getting updated but Final price isn't.
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Feb 5, 2012
I have a program, that on form load, updates a value. The problem is, that it doesn't work!
my
Imports MySql.Data.MySqlClient
Public Class Form1
Dim MysqlConn As MySqlConnection
Dim UserCommand As New MySqlCommand
Dim SQL As String
[Code] .....
And the problem is that it doesn't update the points. I set the points to 10 via PHPmyadmin, and run the program, but when i go back to PHPmyadmin, its still 10.
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Nov 10, 2009
I have a project in which i have a form in which there is add button to add pages. In form load the last entered page populates all the fields. Now thing is if user edits the values in controls it has to update the db with those fields and if the page doesn't exist in db it has to insert.
Here is my code
Private Sub inserting()
Dim cn As New OleDb.OleDbConnection
'Dim selectquery As String
cn.ConnectionString = ""
Dim cmd As New OleDb.OleDbCommand
[Code] .....
I initialized a global variable x and set its value to 0 in page load and in add button click to 1. Depending on x value it either inserts or updates the db in form closing and add button click. Now whats happening is If the user clicks on add button the page increments but if user doen;t enter any values and tries to close the empty form, value of x =1 and it tries to insert but as there are blank fields cmd.executenonquery throws an error.
"The field is too small to accept the amount of data you attempted to add. Try inserting or pasting less data."
What should I do so that it doesn't give an error. I am using access db.I even checked in db Except for primary key(pageno) all other fields have "allow zero length" as YES & "required" to NO.
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Oct 7, 2011
I have a form consisting of datagridview and two buttons of update and load all.. I have used fillby method to obtain data from database. The query seems to be working fine, except that the data is not shown in the gridview.As in, for the qeury, if the returned rows are 2, it will show 3 rows in the gridview, but all empty.
Imports System.Data
Imports System.Data.OleDb
Imports System.EventArgs
[code].....
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Jan 30, 2011
All I want is to update the selected row data in form1 to another form2
Form1 Objects
Form1 = MainAppForm
DataGridView = DGVMain <= binded
Button = btnUpdate
Form2 Objects
Form2 = frmUpdate
Button = btnSubmit
15 textBoxes = you can see its name in the code below and all of them are data binded
MainAppForm Code
Pass the selectedrow data to form2 (frmUpdate)
Private Sub btnUpdateDouble_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
If DGVMain.SelectedRows.Count = 1 Then
Try
frmUpdate.ItemIDTextBox.Text = DGVMain.CurrentRow.Cells(0).Value.ToString()
frmUpdate.PartTypeTextBox.Text = DGVMain.CurrentRow.Cells(1).Value.ToString()
frmUpdate.PartNameValueTextBox.Text = DGVMain.CurrentRow.Cells(2).Value.ToString()
frmUpdate.PackageTypeTextBox.Text = DGVMain.CurrentRow.Cells(3).Value.ToString()
frmUpdate.QuantityTextBox.Text = DGVMain.CurrentRow.Cells(4).Value.ToString()
frmUpdate.UnitTextBox.Text = DGVMain.CurrentRow.Cells(5).Value.ToString()
frmUpdate.DescriptionTextBox.Text = DGVMain.CurrentRow.Cells(6).Value.ToString()
frmUpdate.LocationTextBox.Text = DGVMain.CurrentRow.Cells(7).Value.ToString()
frmUpdate.ProjectBoardTextBox.Text = DGVMain.CurrentRow.Cells(8).Value.ToString()
frmUpdate.CommentsTextBox.Text = DGVMain.CurrentRow.Cells(9).Value.ToString()
frmUpdate.OrderCodeTextBox.Text = DGVMain.CurrentRow.Cells(10).Value.ToString()
frmUpdate.CurrencyTextBox.Text = DGVMain.CurrentRow.Cells(11).Value.ToString()
frmUpdate.UnitPriceTextBox.Text = DGVMain.CurrentRow.Cells(12).Value.ToString()
frmUpdate.SupplierTextBox.Text = DGVMain.CurrentRow.Cells(13).Value.ToString()
frmUpdate.ManufacturerTextBox.Text = DGVMain.CurrentRow.Cells(14).Value.ToString()
frmUpdate.Show()
Catch ex As Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
ElseIf DGVMain.SelectedRows.Count = 0 Then
MsgBox("Please select one item to update!", MsgBoxStyle.Information, "Update")
Else
MsgBox("Updating multiple Items is not allowed!", MsgBoxStyle.Information, "Update")
End If
End Sub
Form2 Code
I want to update the data by this code, but it refresh only the data in Form1
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Me.Validate()
Me.SparePartsBindingSource.EndEdit()
Me.SparePartsTableAdapter.Update(Me.InventoryDBDataSet.SpareParts)
'Refresh
MainAppForm.SparePartsTableAdapter.Fill(MainAppForm.InventoryDBDataSet.SpareParts)
End Sub
No problem in updating the data if I put the code below in Form2 load event
Me.SparePartsTableAdapter.Fill(InventoryDBDataSet.SpareParts)
but the problem is, it will refresh all the data in the Form2, and my code in Form1 becomes useless.
Thanks in advance!
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Jul 27, 2009
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
Dim cmd As OleDbCommand
[CODE]...............
The insertion part of the form works great. But my problem is in the form load part......If i leave a field blank(Null),then perform Save operation,close the form after successful insertion and then reopen the form,then it retains the previous values during the form load......This is only in case where i leave a field blank in the previous data entry in the database.......But if i enter values in all fields then form load is working great.
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Sep 28, 2009
i have been working on an app and now have got to the point i want to let people test it i know how to use the click once auto-update but what i want to do is display the auto-update progress with a form that shows :
ProgressBar - Label displaying % - label displaying Current Process
label displaying Current Process EG Downloading file - copying file to directory stuff like that how would i go about setting this sort of thing up
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Dec 14, 2009
How can I load a form and allow it to run it's code in the form load but keep it not visible. I want it to do what it needs to but but not display.
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Aug 15, 2011
how to auto load data content from a file (primarily containing rtf)when the file is opened. I want to create a system like Microsoft word where you create docx/doc files and double clicking them opens word software and loads the files.
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Mar 24, 2010
im making another program to my collection. I put them up on my website.on this one, I want to make the startup form (login.vb) like a login form.I have a template and I was wondering, instead of using an aspx.net authentication thing, could I just save it to "C:\Program Files\Facebook\users(hidden)\log.txt" and then, when the login button is clicked, it will check to see if the textbox's match the texts in the directory, and if they are correct, then It will open browser.vb? Also I looked for this sort of code, but all I could find was openfiledialogs and savefiledialogs, but I need it to run "in the background" just for verification.
I dont care that people can just click show hidden folders and then have the passwords, because it really doesn't have anything inportant in it. Also an Override account like Admin would be useful.
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Jun 4, 2010
how i can add a update program in my application so it can be automatically updatted via the internet and can notify users an update is available. i wouls also prefer an auto update application.
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Dec 2, 2011
Is there a way to autosave a record for example:
If I select an item from my combo box on the form I want a onChange then save event?
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Jan 20, 2011
I'm about to roll out a large application to many workstations throughout the company and I've never really had the need to "auto-update" an application until now. Ideally, I'd like a "one time install" and then updates are applied without user intervention/IS involvement. (user intervention would be ok as long as it wont require a logoff or admin escalation)
[Code]...
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Apr 20, 2012
I have always made a setup file with "instal creator" which have made a nice one file of my program and it have been easy to share. This time I need a chance to update my application. I read somewhere that having website is necessary or its much easier to do that way, is it true? I have worked before with ucoz/unet so I think I could use it.
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Oct 1, 2010
i want to know how to put an auto update for my URL counter
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Oct 24, 2009
I may be deploying my app (its a database software for videos) to 4 - 5 computers. I want to add some new features but have the software update automatically and silently. Due to security holes or issues with bugs, I don't want to give the clients the choice to update. I just want it to check for an update and if one is available, it can SAY that its updating on a label but that's about it and it automatically updates without confusing the user or wasting any more time than it should.
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Jun 3, 2011
I have a stand alone application "test.exe" on a Windows 7 operating system.I have an application "test.exe" made in Visual basic 8.0.I have an "Auto Update" function . Call this function from "test.exe". In the first line in "test.exe".This function does the following:
1. This checks whether the current version is older than the version on specific site, if so:
1a. Removed all *. old
1b. Rename test.exe to test.old
1c. dowload new test.exe
I'm afraid I get an error when I rename "test.exe" to "test.old" because "test.exe" is now active.How can I prevent this or what else should I do?
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Jul 11, 2010
I'm currently writing an installer for my application (don't ask me why I don't use ClickOnce or other types of installers...).I simply create a folder in C:Program Files and I download my apps' AutoUpdater into the folder and run itFrom there, the AutoUpdater should download the latest files from my server. However, when I check the directory where the files should have been downloaded, I can only see the AutoUpdater
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Jan 2, 2011
I have a datagridview with data from a mysql database, i want to know if is possible to autorefresh datagrid when mysql database is update.
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Apr 15, 2009
I am writing a program which I need to auto-update itself from then internet, must be internet not intranet. My first thoughts were to use a FTP server and do it using that however I have a website and unlimited of pratically everything. My question is. Which way is best? and also How would I set about doing it?
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Apr 23, 2011
I want an auto update of my own game launcher with customize [url]....
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Apr 13, 2009
I've been working on my program, which is a calendar, and I want to update it with the so called: 'Textfile method'. (Not ClickOnce, try'd it but didn't work out.) So basically I dont know where to start, I want my app, to download a text file from lets say: http://localhost/textfile.txt/ I want the app to compare the text file to its current version and if the textfile> than the current version I want the app to download lets say[curl]...
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Sep 2, 2010
I have been asked if its possible for an application that sits on a network folder for multiple users and check online to see if there is a newer version. If there is prompt the user to download it and load the new version.
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Dec 19, 2011
i want to update a row in an ACCESS DB in vb.net using sql query. the way to point to the row is using the primary key. the problem is that i was an error saying that there is a data type mismatch in criteria expression. the primary key type is auto-increment.[code]
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May 6, 2012
Currently I'm using a third party file hosting website (like mediafire) to upload my program and I update the link every time a new version is out.I know there are some ways to autoupdate the program but most of them need to own a website, which currently I don't have.So I was wondering if there could be a way to make an autoupdate using sites like mediafire.Example: I always delete old version of the program, on mediafire when someone try to access a deleted file page he gets redirected on a page which says "file deleted or invalid". So if the program find out that the file link redirect to that page it should inform the user about the new version.
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Sep 18, 2010
I decided give up vb6 and begin use vb.net.And I'm going to update my old vb6 code.I used write a vb6 program to update my program.it's a simple program:I have a webside,I put a file in the webside,this file it's just a document(.txt),only include version number.my program use "inet" download this file(address like this [URL]and compare the version number,if this document number it's bigger than this program number,than told user you need update your program.like this:
dim ver as string
ver=Inet1.OpenURL(http://www.sample.com/info/ver.txt)
[code]....
But,In vb2008,I don't know how to write those code.I search the local MSDN,it said I can use:""my.network.download" to download files,but it's only can download a file and save it as a file,I want to download a file and save it as a variable(type is long),I don't know how to write those code.
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Mar 28, 2012
Is there a way to auto-update a listview based on reading a column?
Requirements:
1) The code must make a call to a user-created "Private Sub" to recalculate
2) Update must be automatic. .SelectedItem or clicking a row will not work
3) The formula function cannot be included in Form_Load
I've got everything working if the user selects a row, then clicks an "update" button using .SelectedItem. But with my current program containing 200 rows, it's not feasible. Simply put, how would I go about updating a listview column (0 in this case) based off a call to a formula, then updating the row?
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Feb 16, 2012
I have a windows form with a DataGridView control.I bound it into an attached DB file (.mdf).I perform insertion by generating a dynamic Insert statement. I then pump this sql statement into a SqlCommand object and perform ExecuteNonQuery() method. All of these is performed by handling a Button click event. The button and the gridview is located on the same form.
Public Sub InsertRow(ByVal param1 As String, ByVal param2 As String, ByVal param3 As String)
Dim strConn As String = (the connection string)
Dim sqlConn As New SqlConnection(strConn)
[code]....
After the code execution, the DataGridView is not updating (remains intact). I have to exit the form and reload it to have the updated gridview.For certain reasons, I can't use DataTable object.But I would like to have this gridview updated everytime I run the insertion.
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