Raising An Event Every Time A Form Is Shown
Apr 19, 2012The MyBase.Shown event only gets raised the first time a form gets shown. How do I make something happen every time the form is shown?
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Two Objects That Are Raising Some Events - Pressing A Button - Raise A Custom Event, Then Execute A Method And Then Close The Form
Mar 30, 2011Problem that you may have when dealing with two objects that are raising some events. Here, to make it obvious, I am closing the form, but the problem can be experienced with any other 2 classes event. First, what is the problem !
Let suppose that by pressing a button, you want to raise a custom event, then execute a method and then close the form
In that case, you may use a code similar to this
Event BeepIt()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RaiseEvent BeepIt()
[CODE]...
Determine Whether A Form Has Raised Its Shown Event?
Aug 5, 2011I have an MDI application that can either run in TABBED or WINDOWED mode. When a user selects something from the menu a form is shown. All menuItem clicks pretty much look the same:
Dim frm As New <SomeForm>
frm.MdiParent = MDIParentForm
frm.Show()
[code].....
Mocking The Raising An Event In Vb10
Nov 25, 2010I'm trying to use mockling with VB10(VS2010) to improve my unittesting. I have a C# lamda expression example but I don't know how to implement this in a VB lamda expression? v => v.Load += null The full Moq to raise the load event would be view.Raise(v => v.Load += null, EventArgs.Empty) .Net Developer
View 1 RepliesMultithreading And Asynchronous Event Raising
Jan 17, 2012I am developing a form application in VB .Net with a main thread and two other threads that reading values from two serial ports, do some work and raising events to return values when each thread ends.The handlers for the events are in my main thread.Is there any possibility the two threads to raise events the same time or some other event (button click event for example) raised the same time with a thread finished event? What happened then? Is there a way to make asynchronous event raising?
View 11 RepliesRaising The Same DoubleClick Event For Different Controls?
Jul 16, 2009I am using Visual Basic 2005 Express and have 8 PictureBoxes on the Form.. When the user Double-clicks any of the Picture Boxes, the path of the image needs to be passed to a Subroutine..As of now, I have a different event for each of the PictureBoxes.. I was wondering if there is a way such that I can use a common event. i.e. if a user double-clicks on any of the picture boxes, the same event is raised ?
View 3 RepliesWpf - Raising Event In Custom Control?
Dec 8, 2009I'm writing a custom textblock control thats populate hyperlinks and raises event when clicked to hyperlink.
I wrote this code but I got stucked.
My code is :
Imports System.Text.RegularExpressions
Public Class CustomTextBlock
Inherits TextBlock
[Code]....
This code gives error at RaiseEvent Klik(sender, EventArgs.Empty)
Error is : Cannot refer to an instance member of a class from within a shared method or shared member initializer without an expliticit instance of the class.
Code Syntax - Raising Event Have Error
Feb 12, 2010I am facing issue in following code syntax...
Protected Overridable Sub OnHeaderClicked(ByVal args As ItemSelectedEventArgs)
If ItemSelected IsNot Nothing Then
RaiseEvent ItemSelected(Me, args)
[CODE]...
[2008] Raising An Event Before Loading Data
Jan 7, 2009As it stands, when I click a button to load the data the application lags and looks as though it has locked up although it has not. There are a lot (10,000) of records to load in some cases.
I thought I could just change my status strip text to dispay "Loading database" while it's loading.
So, I raise an event (dbloading) in the "load db" button.click event before calling the procedure to load the data. When that event is raised, I change the status strip text.... but it does not work.
Here's my
Private Sub btnLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoad.Click
jnATM = Me.atmJobNum
[Code]....
Asp.net Vb User Control Raising An Event On The Calling Page
Apr 7, 2010i'm trying to learn about user controls. I created a user control that has a textbox and a button. What i'd like to be able to do is when i click the button in the user control, populate a label in the aspx page. I understand that i could just have a button on the page that uses some properties on the user control to get that information.. but i'd like to know how to do it with the button the user control.. the reason for this is the button is just an example.. a learning tool. if i can get this working, i'd likely be putting thing in the user control that might require this kind of passing information. Anyway.. i've found some c# examples that i tried to get working as vb.. but once started getting into the delegates and events..
View 3 RepliesAsp.net - Raising An Event Inside A User Control That Returns CommandEventArgs?
Dec 5, 2010i have the following problam: i have a user control which i want to raise an event from to the page that is using that user control (its a button)anyway my problem started when i wanted to put this user control inside a repeater instead of another button (regular asp:button)anyway i needed to support CommandArgument so that page can use the button,so i created a property:
Private m_CommandArgument As Object
Public Property CommandArgument() As Object
Get[code].....
so after i press the button and the postback happen my raised event dosnt have a value..where should this property be saved in order for it to have a value after postback? view state? how do i add to the the viewstate automaticly?
Raising Events With FakeItEasy In .Net To Verify That Event Handler Is Wired Properly?
Apr 27, 2011I am attempting to test that the event handlers between an interface and controller are wired properly. The system is set up like the example below:
[Code]...
Raising UAC Window Loads Form Twice?
Mar 19, 2012I am using following code to raise UAC window. It works fine but my form that contains button to raise this window is shown twice. I mean if I put it in CopyFiile Button, when I click this button, it raises UAC windows, copies file, gives success message and then opens another instance of the same form that contains copyfile button.
Dim proc As New ProcessStartInfo
proc.UseShellExecute = True
proc.WorkingDirectory = Environment.CurrentDirectory
[code].....
Forms :: Set Listbox Checked On Load - Activate - Shown Event
May 17, 2009I've been having a problem setting certain items in a listbox as checked when the form is loaded. I have tried putting the code in the form_activate, form_load, and form_shown events and each still crashes when it encounters:
[Code]....
Event ItemSelectionChanged Of ListView Firing Three Time When Showing A MDI Form
Dec 20, 2011I have a VB (.NET3.5) project like this:
- form1: IsMDIForm = true.
- form2: adding a list view with 2 records, select first record, and register the event ItemSelectionChanged.
- Add form2 as a child of form1 (form2.MDIParent = form1).
- When use "form2.Show()" -> the event ItemSelectionChanged firing three time:
+ 1st: SelectedItem = 1
+ 2nd: SelectedItem = 0
+ 3rd: SelectedItem = 1
I want to know the rootcause (not Solution) of thi issue, can anyone help me !?
Project code: http://www.mediafire.com/?hhhdzh5te1wrod4
Setting Focus On Textbox Inside A TabControl Works With Shown Event?
Dec 16, 2011The only way I found to set the focus on a TextBox inside a TabPage is:
Private Sub Form1_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
TextBox1.Focus()
End Sub
Paint Event - Add A Button To A Form Each Time The User Clicks A Menu Option
Apr 17, 2009[Code]....
I add a button to a form each time the user clicks a menu option as:
[Code]....
This draws a small blue line at the bottom of the button to show it is highlighted. Just like the mouseoverbackcolor property on a button except this will draw the line. It works fine until you slide the mouse very fast between the buttons. It is as if the mouseleave event doesnt always fire.
Asp.net - Hidden/Shown AsyncFileUpload Control Doesn't Fire Server-Side UploadedComplete Event
May 26, 2010I recently came across the AsyncFileUpload control in the latest (3.0.40412) release of the ASP.Net Ajax Control Toolkit. There appears to be an issue when using it in a hidden control that is later revealed, such as a <div> tag with visible=false.
Example:
Page code -
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="act" %>
[Code].....
I have a breakpoint on the UploadedComplete event but it never fires. However, if you take the AsyncFileUpload control out of the <div>, making it visible at initial page render, the control works as expected.
So, is this a bug within the AsynchUploadControl, or am I not grasping a fundamental concept (which happens regularly)?
Find When Dialog / Modal Form Is Shown For My Main Form?
Feb 3, 2010I want to be able to check if there is currently a dialog or modal form shown for my form so that I can close it.
Is there a way to do this?
VS 2005 Form Load Vs Form Shown Events?
Aug 25, 2010aside from the difference mentioned below, what are other difference the two events might have and how will affect the application as a whole? What is more preferred to use and why?
Form Load:
*Do stuff*
Form shows up on monitor
Form Shown:
Form shows up on monitor
*Do stuff*
Controlling Opacity Of Form Shown In A Form?
May 27, 2009The end result we're looking for is a slideshow effect where a section of our main form shows a sequence of secondary forms which fade in/out on a timer.We can fade the forms in/out when they're shown individually, but the opacity setting doesn't seem to work when they're shown inside another form. What I've got, for testing, is code that should simply reduce the opacity to 10% after showing the inner form for a half-second, long enough to notice the reduction-except I don't see any change.
Dim f As New Form2()
f.TopLevel = False
Me.Controls.Add(f)[code]........
The opacity change takes effect without refreshing the form when shown 'stand-alone' but I've tried refreshing both the inner & outer form anyway, with no change.
How To Check If Form Is Shown / Hidden
Jan 1, 2010I can show/hide a form, but is there anyway for me to check if a form is hidden/shown? After the form calls InitializeComponent(), and activates the OnLoad Event, it automatically calls the Show() of the form. I do not wish my form's default startup mode to be Shown. I tried overriding onshown method and call Hide in OnShown. It works but this method looks pretty ugly to me though so is there anyway that I can stop the form from even calling Shown when it was first initialized?
View 31 RepliesTrigger An Event At The Time Selected In The Date Time Picker
Dec 23, 2010i'm using a date time picker with format set to time. i want to be able to trigger an event at the time selected in the date time picker
View 19 RepliesForm Layout Not Shown In Designer View?
Apr 19, 2010I moved a project so I could work on it in two places. When I opened the project, I have only worked on it from one computer, my form did not show in the solution explorer so I moved it back. I opened the project and everything was there but I was not able to see my form layout in designer view. The code is there and it builds and looks right but I can't see any of my form components and I need to edit some properties.
View 2 RepliesHow To Get Context Menu Shown In Child Form
Feb 13, 2009I have a MDI app. At the moment I merge my context menu from my child to the parents tool strip menu. But now I don't get a context menu show in my child form?
View 2 RepliesMsgBox Appearing Before New Form Shown On Screen
Nov 2, 2011When I initialize a new form to open, the subroutine in the new form starts before the new form is shown on the screen and so when the subroutine finishes and the MsgBox comes up, the form isn't showing. Is there a way to make the form pop up first before the subroutine starts?
View 2 RepliesVS 2008 - Finding Out If Form Loaded And Shown
Sep 25, 2010Is it possible in VB .NET to find out if a form is loaded? Also, is it possible to find out if a form is shown at the moment? I think for the second issue it's enough to get the value of the property of the form:
MyForm.Visible
However, I don't know how I could find out if a form is loaded or not.
VS 2008 Allow The User The Option Of The Form To 'not Be Shown Again'
Apr 22, 2012im hoping to be able to create a form that welcomes users to the application that i have created, however i want to be able to allow the user the option of the form to 'not be shown again'
View 13 RepliesDate Time Picker And Event To Trigger With Just Time
Dec 22, 2010i'm using a date time picker and want an event to trigger with just the time so it will trigger every day at a certain time. can anybody help
View 1 RepliesDataGridView's Column Values Disappear After The Form Is Shown?
Aug 16, 2011I have a MainForm which contain SecondaryForm as a control of the MainForm.SecondaryForm contains DataGridView which loads data from sql server and I add a collumn named SUM that SUMs all the values of the same row. This is provided within the LOAD event of the SecondaryForm.When SecondaryForm.Load events finishes, the program goes back to MainForm right after the line "SecondaryForm.Show" and here the values of the column SUM disappear.When i write those values runtime, they never disappear.
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