Add An Event That Triggers When Form It Is On Re-sizes
Jun 28, 2009I have a custom class. I would like to add an event that triggers when the form it is on resizes. Is there a way to do this?
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Calling The UpdatedDb Sub When The .CellEndEdit Event Triggers And When The .UserAddedRows Event Triggers?
Oct 19, 2009I use the following code in a Sub called "updateDb" to accept changes back to the Db, etc. in the .CellEndEdit event from a DataGridView:
Try
' Write changes back to actual .mdb file
' Accept changes from DataGridView object
Me.Validate()
[code]....
Which is the most appropriate event to handle for this task? Right now I'm calling the updatedDb sub when the .CellEndEdit event triggers and when the .UserAddedRows event triggers.
Handling Rapid Event Triggers?
Apr 22, 2010I am using an activeX control to read data from an external source. This data is processed in 5 second increments. Each piece of data is passed through an event. When the event triggers I call a "decision" procedure from the event to process the data and make decisions on what to do, i.e. call other procedures, store the data, etc... This works fine when I have a small number of samples (around 10), however, when the number of samples increases to say 100, that is I am recieving 100 pieces of data every 5 seconds, the "decision" procedure does not fully run. Is it possible that the event trigger is causing the code to exit the "decision" procedure prematurely? I know that the "Decision" procedure starts since I have written data from the beginning of the procedure but not the end of it. how to handle the rapid event triggers?
View 7 RepliesReturn TextBox Triggers Event?
Jun 11, 2011Anyone know how to make the return key used in a text box trigger an event?
View 3 Replies.net 2008 DatagridView - Changing What Triggers An Add Row Event?
Nov 3, 2009I have a datagridview which is populated from the SelectionChangeCommitted event of the combobox. The datagridview contains both bound and unbound data columns (see below).
View 1 RepliesSuspend Event Triggers When Computer Wakes
Jan 8, 2012[code]I get an error that the connection to the IMAP server has disconnected because the suspend event is not triggered until the computer wakes. How do I get the trigger before the computer sleeps?
View 2 RepliesButton - .NET: MessageBox With YesNoCancel - No & Cancel Triggers Same Event?
Feb 13, 2010I have a message box with YesNoCancel button..
Pressing Yes will do some action and close the app - works fine,
Pressing No will do nothing and close the app - (see below),
Pressing Cancel will Do nothing and keep the app open - (see below).
I'm using DialogResult.No for No button and DialogResult.Cancel for cancel button. But pressing either of them triggers DialogResult.Cancel event. Whats the problem?
VS 2010 Tooltip Triggers - Hover Event Handler
Jun 26, 2010I'm working on a program with a fairly complex graphical interface. Due to the volume of information possible in the interface, the tooltip, or something like it, seems likely to be a fairly critical means of obtaining feedback. However, after a bit of testing, there are a few features that I am not really enamored with. First, I am changing the tooltip text dynamically based on the portion of a control that the mouse hovers over. This is done in the Hover event handler. What I am seeing is that once the hover event is raised once for a control, it appears not to be raised for that control again unless the mouse leaves the control and re-enters. Therefore, the tooltip is set based on where the mouse hovers the first time it hovers on the control, then doesn't change until the mouse has left the control.
More disturbingly, the tooltip sometimes doesn't show up at all. It appears that if I am quick enough about moving the mouse over the control, then hovering does nothing and no tooltip shows up at all. The way to get the tooltip to show up is to move the mouse smoothly, and somewhat slowly, over the control, then pause. As long as the motion is slow enough, the tooltip always shows up. However, if the mouse is then moved, the tooltip goes away, and won't return until the mouse has left the control and come back to it. So basically, First, I will look into showing something on MouseMove rather than Hover, as Hover appears to be inconsistent, at best. Yet that doesn't solve the problem that the tooltip is too inconsistent in behavior. Is there an alternative, or timing property settings for the tooltip that improves responsiveness?
Create ImageButton Click Event Triggers Calendar Popup?
May 12, 2008I am writing a web page, on this web page there is a txtStart and txtEnd. Next to them I have Calendar ImageButtons. I would like to code it so when the ImageButton is clicked a calendar popup appears and when they select a date on the popup it goes away and the date is populated into the txt. Format MM/DD/YYYY. Can anyone help me? I have been looking online for hours now and only find solutions for C# users or for a seperate page all together. I am writing my code in VB and I cannot make new pages. Here is my web page code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="PSInventoryRelease.aspx.vb" Inherits="DigeControlCenter.PSInventoryRelease" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="TC" %>
[code]....
Triggers An Event After Multiple Command Buttons Are Pressed In A Certain Order
Nov 16, 2010I've been searching for the answer for this all over, but I can't seem to find the solution. I have no idea how do this. A code that triggers an event after multiple command buttons are pressed in a certain order. For example: I press Command1, then Command2, then Command8, then Command5, then an event happens. It's kind of similar to entering a code to activate something.
View 4 RepliesLoad Form Triggers Events In Its Controls
Oct 16, 2011I found this mystifying in VB6 and it's still here...
For example - I have a combobox on a form and I have put some code in its SelectedIndexChanged event. The problem is that I want this code to be executed *only* when the user clicks on an item in the combobox dropdown. Why is it then that it gets executed when the form first loads? And how do I stop this happening?
I used to use a "FormLoading" boolean to decide whether or not the code was executed but this surely shouldn't be necessary. Is there a better way?
Keep Form Sizes The Same In Different Resolutions?
Apr 9, 2012I have written a VB .NET 2010 application which displays a "you have new mail" window/form with an OK button that closes the form.
Some users have received new PCs with dual-monitors and the OK button is no longer visible on the form - it's at the bottom but off-form.I guess that this is related to a different screen resolution and not the dual-monitor setup itself.how to make my forms auto-resize? I though this was automatic in VS 2010.
VS 2008 - Setting Form Sizes According To User Screen Resolution
Mar 17, 2011I'm setting form sizes according to user screen resolution and I think I need design no smaller than 1024 x 768 these days. Using the following code I set my first form and use Anchor settings to resize and maintain controls. Does resize affect StartupPosition in other forms and what do you think is the best StartupPosition to Show the next (smaller) forms? I have a feeling I should have created child forms but simply added forms to the project as I needed them. For example, the first code example does not take account of the WIN7 Task Bar.
HTML
Dim x As Integer = My.Computer.Screen.Bounds.Width, y = My.Computer.Screen.Bounds.Height
Me.Size = New Size(x, y)
A smaller form loads with the same code slightly varied, but the reduction is not taking account of the screen resolution. Is there a way of reducing by percentage?
HTML
Dim x As Integer = My.Computer.Screen.Bounds.Width, y = My.Computer.Screen.Bounds.Height
X = X -100
y = y - 100
Me.Size = New Size(x, y)
C# - Difference Between Load Event,Activate Event And Enter Event In The Form?
Mar 30, 2009I am using VB.NET for Windows applications. What is the difference between Load event,Activate event and Enter event in the Form and in which order the above event is executed.
View 2 RepliesControl Triggers The Commands Twice?
May 17, 2012I have this question about the control triggers, I have this project that have textbox, using it's textChanged function and setting the autopostback in to true.
Now, when I trace the command I have notice that the function have been triggered twice, and I just want to know now how that happens and how I can set this to trigger only once.
List All Triggers In A Database?
Jun 14, 2010Is it possible to list all triggers in all tables on a database?I can list all user stored procedures with:
Private Sub StoredPro()
Dim theServer As Server = New Server(serverName)
Dim myDB As Database = theServer.Databases("mydatabase")
Dim dt As DataTable = myDB.EnumObjects(DatabaseObjectTypes.StoredProcedure)
End Sub
But nothing obvious in SMO for triggers. (I'm actually trying to list just custom triggers, any that are not named DEL_tablename, INS_tablename, UPD_tablename) within the selected database.
MouseWheel Triggers 3 Times
Mar 28, 2010the MouseWheel event triggers 3 times every time i scroll ... this i believe is because i have my wheel set in windows to scroll 3 lines at a time but i am updating a "zoom" and only want it to trigger 1ce per wheel movement any ideas?
View 9 RepliesHow To Force Form Load Event On Form2 From Click Event On Form1
Nov 16, 2010I'm trying to execute different code depending on the button clicked (button 4 or 5) on Form1, but when I click on button5 to activitae the code on the Form2's Load event everything is Ok, but when I click the back button to return to Form 1 and click on the Button4 to activate the code on the Form2's Load event again, it doesn't active the Form's Load event, is there a way to form the form load event every time I access it from Form1? [code]
View 7 RepliesVisual Basic & MySQL Triggers?
Apr 12, 2010I am currently rewriting an Access application to VB. The database was already MySQL 5 with the Access application - solely used for the forms and reports. In access the MySQL database is accessed though ODBC, in VB via a .NET connector.
The problem is the following:
In the MySQL DB I have a trigger to create a UUID (or a GUID if you prefer) as a "Before Insert" trigger.With Access, the record creation works fine, and the UUID is created flawlessly.With VB, the record creation is stopped by VB when trying to insert/save the record - saying the DB requires the field UUID not to be null. Although this is right (it is mandatory in the record creation in the DB), it obviously does not take into account the MySQL trigger (and how could it?).How do you get rid of the validation for this field?
Event Argument For The Form Click Event Has The Type "TimedEventArgument"?
Dec 23, 2009As you noticed, in the code bellow, the event argument for the form click event has the type "TimedEventArgument".When the event is raised, e.Time holds the time where the form was clicked.Add the missing code in the class Form1 to make this work.You will not change anything to the methods "Form1_Click" or "Form1.Load".You will not use Option Strict On. HOWEVER, you will not do any narrowing or late binding that wouldn't have been allowed if Option Strict was on.You cannot create any new Class, Structure or Module.You cannot cast the EventArgs to TimedEventArg in any way
[code]...
ADO .NET Equivalent Event To MS ACCESS Form's OnCurrent Event
May 11, 2009I just want to know if there any equivalent event (ADO. NET VS 2008) event as in MS ACCESS Form's OnCurrent Event.
The reason is I like to make some calculations based on some data bound controls with current datarow data when user clicked a row in DataGridView (or by using bindingNavigator). I've tried with DatagridView's RowEnter event. But some Data bound controls are not yet reflect the data of current datarow when that evet was fired.
In MSDN Help File: It says "RowEnter Event: Occurs when a row receives input focus but before it becomes the current row. "
Can't Use Form Mouse Move Event Or Any Other Control Event
Dec 6, 2011How should I go about getting my mouse position over multiple controls, and such. I can't use the form_mouse move event, or any other control event nor can I use them all at the same time cause that would conflict with the actual position I need for an object.
View 10 RepliesEnter Triggers Submit On Master Page?
Jun 24, 2011In my master page there is a submit button for the site search. On most pages this is only triggered if enter is hit whilst the search box has focus. On a couple of pages though hitting enter on the main form it triggers the search submit. I know that I could fix this by enclosing the search in it's own form tag and then changing every page to have it's own form tag, but I need something that is a lot simpler as a fix as I'm low on time. Is there a way I can tie the text boxes in the form to the correct submit button?
View 1 RepliesRaiseEvent Triggers 'Debugger.Runtime.CrossThreadMessagingException'
Mar 29, 2011I have a class in VB.NET that has a method (called CurrentValue) that returns a number. There is also an event that the class raises to indicate the number has changed. In the event handler on my form, I update a textbox using the exposed method.[code]When I run this I get a "Debugger.Runtime.CrossThreadMessagingException" error. What could be doing this? I am instantiating MyClass in the same form that contains the textbox.I can also set properties of the MyClass object without any trouble.
View 1 RepliesUnable To Find What Triggers System.NullReferenceException
Jul 1, 2009I have a program that will print dwg and idw drawings to different printers. from our drawing vault we kan use a plotbutton which creates a pcf-file (text file) and copies the drawing to a specific location. the program reads the pcf file which contains the max printsize for the drawing, who is printing it, nr of copies, location of the drawing. all data is written to or read from a small database. as long as there are drawings the printing goes fine, they are listed in a datagridview on the form. As soon as the last record is removed from the datagridview I get the following error[code]...
View 2 RepliesTablelayoutpanel Even Row Sizes?
Aug 9, 2010when the form loads, there is a table and i use code to set the row count to a variable from a previous page. this works fine. the problem i am having is that i cant get the row height sizes to be evenly spaced, there is 1 huge row then heaps of tiny ones
View 4 RepliesListbox Items With Different Sizes
Feb 22, 2010I need listbox with few items in my project and I want each item to shown in different font size. Example is the VbCity editor FontSize box.
[Code]...
RadioButton - Only Use A Couple Different Sizes
Jan 9, 2011Is it possible to have radio buttion 1 control this code and have radio button 2 control the same code with different sizes? If this can be done it will get me buy until I learn a better way. It is a small envelope app, someday I will add a database to it too hold all my address. Right now I only use a couple different sizes.
View 26 Replies.Net 2010 Regarding Limitation On DLL Files/sizes?
Jan 14, 2011I have a slightly unusual application that is optimally designed by doing the following. We have an application that references a number of graphic sets for unique artwork utilization. The application is in HD and the graphic sets are a bit large about 20 megs per set. We have found that the optimal design for this particular application is to create a unique .Resources file per set, compile this .Resources file into a .Dll file using Assembly Linker (AL.exe) and reference the .Dll via the application and load the graphics upon demand or selection actually of this unique set within the application.
Question is this as I have been unable to find any data on this aspect.
Is there a limitation on the number and size of .Dlls that a VB .Net application can reference?
Specifically, we will likely have 20-25 unique graphic sets reesulting in 20-25 unique .Dll files of about 20 megs per .Dll. On our deployment boxes for the applications, we have 2 GIGs of RAM so no issue there.
Just curious if anyone knows if I am breathing down the neck of an inherit limitation within VB .Net 2010 by creating the above monster.
Center An Image At All Window Sizes?
Jun 27, 2011How do i center an image at all window sizes? My Window is borderless and maximized so its size obviously differentiates between resolutions. I'm having trouble centering an image directly in the middle of the screen and making it stay there regardless of the size of the window. Docking isn't working neither is anchoring and hoping there is an easier way around this?
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