VB Event Name Autamatically Change?
Jun 8, 2010
in vb.net , event are automatically change for example i write following code for button1 click event
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
ListBox2.Items.Add(TextBox2.Text)
End Sub
next day i open this project. and double click on button4 to write some other statement but there are two click events for button1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)ListBox2.Items.Add(TextBox2.Text) End Sub
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
[Code]...
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Jul 1, 2011
The following code was working the other day. Now it isn't. When I type a character in the textbox the event doesn't fire.
[Code]...
why the event would just stop firing?
I'm trying to make it so this the cursor will jump to the next textbox after the user enters 1 character.
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Jun 21, 2010
I am having a requirement in my project where User press '.' in his num pad and he wants the character ',' to be displayed (dats bcoz he is French User).
I tried changing the e.KeyCode but it is a readonly property.
Is there any other way to change the key in key events?
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Apr 1, 2011
let say i have a function like this
' create filter
Dim colorFilter As New ColorFiltering()
' configure the filter
[code]....
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Oct 13, 2011
I have a dgv with several DataGridViewComboBoxColumns and when the user selects an item from one of these (product dropdown), i need it to repopulate another combobox (color dropdown) in the dgv for that same row - based on the value i get from the product dropdown. I've tried using the EditingControlShowing event; however, it only fires when I first select the dropdown .....?
Is this the right event I should be using? My other issue is that I don't know how to have the color dropdown re-populate for just the column and row I've selected. Here's my code so far for this event:
Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs) Handles DataGridView1.EditingControlShowing
Dim myRowIndex As Integer = 0
[code]....
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Sep 25, 2010
I can't figure out how to make it so that when a variable reaches a certain value, an event is triggered. For example if I wanted a user's level to change to 2 when he gets 1000 exp.
Dim level as integer
Dim exp as integer
*****What do I put here?*****(when exp reaches 1000)
level = 2
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Jun 9, 2011
I am trying to calculate the 'Profit' field based on the current record's 'ProjectTotalBillingEstimate' field and the 'ProjectActualCost' field. I want the 'Profit' text field to be calculated every time a record is changed, either via the navigation toolbar or the Project ID drop down box. I tried performing the calculation everytime the 'Product ID' changed but then the values in the fields of the previous record were used. I was wondering if there was an event that I could use the would occur only after the entire contents of a record were loaded.Essentially what I need to happen is when one moves to another project record the profit field needs to be calculated only after all the fields update to the current record. [code]
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Jan 10, 2012
I have been working very hard on figuring this out and just can't understand the events. understand the event process in my code? Or tell me why my image won't switch when it runs the code?
Declarations of Class and members
Partial Public Class Name
Implements IChat
[Code].....
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Mar 15, 2012
I have a CollectionChanged Handler Method:
Private Sub LayersChanged(sender As Object, e As Collections.Specialized.NotifyCollectionChangedEventArgs)
If e.ItemCollectionHasNewItems IsNot Nothing Then
[Code]....
I cant call SomethingRelatedToE.excecute because it effects e's collection which causes a runtime error.
However if the LayersChanged method has completed I can then call SomethingRelatedToE.execute from another method without effecting it.
Is there a way for me to directly move to another method after the LayersChanged method has finished, like a Goto function or another solution to this?
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Jan 12, 2010
Is there any way so I can get event when moving cursor in excel sheet. What I meant by that if cursor is in cell A1 then I move to B1 at that time I want cell change event should fire. At the movement I am able to get event when you change the cell value and press enter then I can get the cell change event.
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Dec 23, 2011
I have created a form to update an access DB table. My issue is that when the text in the text boxes is changed and the form is submitted, the .text values stay the same as they were when the datareader loaded them on the page load event. How can I submit the values that the user updates, not what is already there from page load.[code]...
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Oct 9, 2010
I hhave two modes in my application. Either of the mode is on at any part of time during the running of the application. I have given the user the option to create PicutreBoxes at runtime. Further, I have give two different options to the user.
If the first mode is selected, the Click event for the PictureBox is is pb_clikc and if the second mode is selected, the click event is pb_click_sp.
But the problem is that on the mode select event, I can't specify this line of code since picb is not existing in the current context.
picb.Click += picb_click for Mode1
or
picb.Click += picb_click for Mode2
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Feb 11, 2012
i want to execute different subs at each tick , is that possible ?
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Apr 10, 2010
I'm using the PanelManager control, but I can't figure out how to change the panels via a client event.I have a Link label and when clicked, i want it to the panel manager to change to another panel.
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Sep 30, 2009
i have line like this 1.0 30 Blue (2 17.00 54.0) [2 16.03 52.0] 55611 30275 58571 23514 so i want to check after the Value Blue is that "(" or "[" in side my radio button checked change event.
in RadioButton1_CheckedChanged if the value is "( " the message box should come out and say "The file is already in PPin to Probe pattern" else if the value is "[" then there will be nothing to display.
this is my code Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged Dim FileContents() As String = IO.File.ReadAllLines("C:\match1.txt")
[Code]...
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Jul 26, 2011
I am working on a app that will monitor the registry for changes to [ProviderOrder] in [SYSTEMCurrentControlSetControlNetworkProviderOrder].
I have it 90% done with this
Imports System.Management
Imports Microsoft.Win32
Module Module1
Dim Watcher As ManagementEventWatcher
Dim Hive As RegistryKey = Registry.LocalMachine
[Code] .....
If I change [ProviderOrder.test] the app tells me the value was changed and corrects it. But it does the correction twice (because of UpdateProviderOrder changing the value). I thought that using RemoveHandler and AddHandler would take of that.
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Apr 12, 2011
I've got a variable, BuildDateTimeStamp, would it be possible to add a pre build event to update the value of this variable?code]...
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Sep 8, 2011
I handle the validation in the CellValidating event, and if the cell is invalid display an error message, then cancel the exit of edit mode. However I would also like to erase the content of the cell currently in edit mode.
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May 27, 2010
what is the best way to handle on selection change when the form loads?My problem is, the index change while te form is being loaded, which then in turns tries to run my code.Here is the FormLoad Event, that gets an xml stream from the web, dumps it in a dataset, then bind to datagridview.
Private Sub frmOrders_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Using reader As XmlReader = XmlReader.Create(New StringReader(XMLDoc))
[code].....
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Jan 9, 2011
I want to create a textbox which contents are validated every time the text in it changes. And an image is displayed beside the textbox if it is correct and another image shows up if its not correct. Pretty much like ajax.
Heres the method which I called from the class.
Public Sub read1()
cmd.CommandText = "SELECT * FROM testdb WHERE Name='" & name & "'"
Try
[Code]....
Problem is, the method seems to be only called once. And the first image that was displayed stays the same even after inputting a data which does not exist in the database. I'm connecting this program to a mysql database using odbc.
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Jan 28, 2010
I got a Sub which processes a code, and then it does whatever the code said. Example.
Code = "Black" -> Turns screen black.
Code = "OFF" -> Turns off the PC.
And so on.
If I call that Sub from Immediate console, It works perfectly. But if that Sub is called from an event, It does nothing, and usually throws an Exception. I read somewhere that I can fix this by using Threads, but I don't understand how that can help and make it work.
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Aug 25, 2011
I'm developing application in VB.NET 2008. Whatever I'm formatting cell that should reflect on original value. In Cell Formatting Event, e.Value=format(e.value,"0.0") means it is formatting data but original value is not changing on cell.
But I tried like this
Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
With DataGridView1
If e.ColumnIndex = 0 Then
e.Value = Format(e.Value, "0.0")
.Item(e.ColumnIndex, e.RowIndex).Value = e.Value
End If
End With
End Sub
It is working for normal datagridviews but if I do the same for databound datagridview , data are flickering... (i,e cellformatting event is executing always). How to change original value of cell in cell formatting event ?
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Mar 25, 2011
I had built an application such like items management, I used two table in two different database in two different engine server, the stack is, when I want to make event for add new data, how I can make the event for the combobox ID for switching it's datasource from before.. for the knowledge, the first table is Xtable, database is Xdatabase and the machine is Xmachine; and for the second one is : table is Ytable, database is Ydatabase and the server machine is Ymachine...
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Nov 7, 2011
I'd like to detect a textbox change but only take an action after it is completed.
The problem is the number which is four digits is changes one number at a time so a normal text changed event will be forever logging a change. Ideally it would detect the change and only display a popup 5 seconds after the change is completed (ie no further changes detected!)
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Feb 3, 2012
I can't change the cursor when it's a ToolStripButton.click event.I got 2 buttons that call "Rechercher".
EDITED : Only the Button is working. It seems that the ToolStripButton cancel my cursor...
Public Class FenetrePrincipale
Private WithEvents _btnRechercher As New Windows.Forms.ToolStripButton("Rechercher")
Private WithEvents btnRechercherAccesBtn As New Button[code]......
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Jul 7, 2009
I have an application with a main menu.
File , Menu B, Menu C ....
-1
-ServiceMenu
When the user run the application I would like to show the File menu->ServiceMenu form and the main menu should be allways on the background. I try the following: From the main menu load events call the ServiceMenu routin.
Private Sub ServiceMenu()
Dim szt As New sztetelek
Me.AddOwnedForm(szt)
[code]....
My problem the following the new ServiceMenu (szt form) show in the right position but cannot get focus. My user have to click on it to the form gets the focus however if the user click the File-ServiceMenu this forms works well and get the focus.I think the main menu get back the focus (If i press the ALT the File menu dropdown .... )
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Jan 5, 2011
I want to change the TextBox border color if certain event is true.
For example, in a GroupBox, there is a TextBox and a Button.
If the TextBox is empty, and I click the button, I want the TextBox border color to change to red.
If the TextBox is not empty, I want The border color to remain unchanged.
How do I change the TextBox border color on a certain event?
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Apr 23, 2010
I'm trying to dynamically change the click event of my tray icon balloon and remove it in the handler. This is the line in the handler:
VB.NET
RemoveHandler TrayIcon.BalloonTipClicked, AddressOf UpdateSite
This is the warning I get:
Quote:
The 'AddressOf' expression has no effect in this context because the method argument to 'AddressOf' requires a relaxed conversion to the delegate type of the event. Assign the 'AddressOf' expression to a variable, and use the variable to add or remove the method as the handler.
How can I move AddressOf into a variable and reference that in RemoveHandler? I can't find out how to declare a delegate.
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Jun 22, 2010
Is there a event detect change of Listview item count? Like it will be trigger whenever i add an item or delete an item form listview. I search on MSDN Listview Event member, but cant c any usefull.
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Apr 5, 2011
I have a class called solution. This class has a property named cost. I also have a class called solutionList that inherits List(Of Solution). I have an instance of the solutionList class in another class called solutionGroup. Within the solutionGroup class I have a property called totalCost that sums the solution.cost property for all solutions in the solutionList.
But, I need a way to know when the cost has changed so that I can recalculate the solutionGroup.totalCost. I've added events to the methods that add or remove solutions from the list but I need a way to know if someone does something like
SolutionList.Item(0).cost = 100.
How to raise an event when the cost property of a solution that is in the solutionList is changed but with no luck.
Here is my solutionList class:
Public Class solutionList
Inherits List(Of Solution)
Friend Event listChanged(ByVal sender As Object, ByVal e As EventArgs)
Public Sub New()
End Sub
[Code] .....
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