Trigger An Event From A PictureBox That Is Created During Runtime?
Apr 13, 2009
I am trying to figure out out ttrigger a click event from a Picturebox object that is created during runtime? application that I am developing using Visual Studio 2008 during runtime a user selects a shape from a Panel3 on the right side of the form and then clicks on a location inside Panel1 where that shape is copied over. Almost like a Visio application but without the drag and drop.The name of my new shape via a is call "C_Object" I would like the user to be able to select this new shape and a click event to be raised but because this PictureBox object was created during runtime I am not seeing the event.
I am working on a TCG card game and I am having some trouble of thinking how to find the Properties of a Picturebox that was created at RunTime through a Click Event.
Here is the Code I have This is the Sub that I have to create the Pictureboxes...
Code: Private Sub CreatePictureBox(ByVal name As String, ByVal x As Integer, ByVal y As Integer, ByVal height As Integer, ByVal width As Integer, ByVal picture As String) Dim PB As New PictureBox
I have written a code to generate numerous command button during runtime depend on the user selection. I would like to find out how do we handle the command button click event?
I have created a program that allows the user to click on screen and add many ovalshape objects. But I have got stuck as now I need to create a rightclick event for any of the runtime generated ovalshapes on screen and dont know how to refer the right click event to all the many objects?
My code for creating the oval's are as follows:- Dim Drg As New ShapeContainer Dim Shape As New OvalShape Drg.Parent = Me Shape.Parent = Drg Shape.Size = New System.Drawing.Size(10, 10) Shape.FillColor = StampColor Shape.FillStyle = FillStyle.Solid
But how do I write a click event now for any of these runtime created objects???
I have a main form that has a dynamically generated treeview and also a panel control. Depending on the selection made within the treeview the panel docks 1 of three diffrent usercontrols which are full sub forms(done for ease of modifing design of sub form rather than layering panels on top of panels).Upon button click withing usercontrol i wish to trigger event within main form.For example delete button wich then triggers to remove current selected node from treeview. code for 1 of three diffrent user controls
Dim ctrlQ As New QuoteUC(TrViewQuotation.SelectedNode) PnlSubFormDock1.Controls.Add(ctrlQ)
Code for delete button for which i need to raise event.
If MsgBox("Are you sure you wish to delete this customer ?", vbYesNo, "Delete Record") = vbYes Then Deletecustomer(n) End If
I'm writting a program that will output the column headings of the database onto a form in a label along with a text box for the user to input their own information and a button to add a new record in the database. My problem is I do not know how to refer to the text boxes or how to call the click event from the button that was created at runtime.
Any thoughts on what might cause a thread error like this?Error:InvalidOperationException was unhandledCross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
Relavent Code: Private Sub SerialPort_DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
Eg. ""vb.net" timer event trigger on purpose". This application is meant to run at all times to download a web page every minute. To avoid freezing the UI, I read that the best solution is to move the code from a While/Sleep loop to a Timer that will be triggered every minute. The problem I have, is that the user must wait for a minute before the event is triggered:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Timer1.Interval = 60000 Timer1.Enabled = True
[CODE]...
Is it possible to force this event to occur instead of waiting for it?
There is one-to-n relationship (foreign-key relationship) between tables As and Bs. Every time a new record is added in As, a trigger "after update" in table As creates n records in table Bs. There are two Linq-to-SQL classes A and B representing the tables As and Bs respectively.The class A contains Bs property an EntitySet(of B). Similarly in class B, there is a property A, an EntityRef(of A)
[Code]...
When above function is executed the result is always 0. Whereas there are six records new records has been added to table Bs every time the above function is executed.
I have a program I'm working on that, for one of the features, allows the user to drag an image from a picturebox, into the main form space, anywhere they want. [code]...
When trying to drag the image from the CurrentTilePicBox, the very moment I move the mouse while dragging the cursor becomes a circle with a cross and won't drag and drop into the new picturebox.
I have this code in my ViewProductsInventory (which is called from my MainForm by ShowDialog):
Private Sub ViewProductsInventory_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.Tb_inventory_datesTableAdapter.Fill(Me.InventorySysDataSet.tb_inventory_dates) Dim inventory_date As Date inventory_date = Me.cboInventoryDate.Text [Code] .....
Upon clicking the editbutton will execute EditForm.ShowDialog() And in my EditForm the record will be updated, after which will trigger ViewProductsInventory.btnSearch_Click( ViewProductsInventory.btnSearch, EventArgs.Empty) And then the error "Conversion from string "" to type 'Date' is not valid" occurs.
I tried Msgbox(Me.cboInventoryDate.Text) and returns nothing. I'm assuming that my cboInventoryDate is not being populated at this time therefore when btnSearch_Click is triggered it receives nothing.
In .NET I have a class called Caption. I have another class called Gauge. Within the Gauge class I have a property defined as a Caption.I am trying to figure out how to do thefollowing:When a certain property is changed in my Caption class how do I get it to execute a subroutine in the Gauge class? I am thinking I have to declare an event and AddHandlers to fire it off, but I can't think of how to accomplish this.
I am trying to build an add-on for some software. they are done using vb.net
I want to trigger an event called project selected but dont seem to get the option. Ive selected the control but the event doesnt appear in the options list i can override the event by doing a Addhandler myControl.ProjectSelected, AddressOf newEvent is there any way in my newEvent method to run the orginal ProjectSelected event ??
I have a set of accordian divs (powered by the prototype library) in an asp.net page. I would like to save the state of the accordian, so when a postback event occurs, the same div is open rather than reloading the page entirely and opening the default div.
My plan was to set a page control value with the ID of the open div using the div's toggler click event function, and then fire a click event after postback calling that same div (using the value of the control holding the div ID) as the target. I'm not sure how to fire a javascript click event from vb.net however, and this sure seems like a lame workaround.
1) can you tell me how to fire a javascript click event from the vb.net codebehind page
i am trying to allow a user to press enter in a text box to trigger a text change of an object...
1. say u put 2 in a text box called "Number" and
2. when you press enter,
3. another object named "penbutton" to change it's text, that u can see on the picture to "write"..
4. originally the book will have the text "Start" on it
do i changed the "number text box" enter event ? how do i do this? This is what i have so far
Private Sub xNumberTextBox_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles xNumberTextBox.Enter Me.NumbertextBox.AcceptsReturn = True
I have a project with many forms on it, some of them are dialog forms, some of them are mdi children of my master form. What I need to do is when a user press the ESC button on his keyboard to dispose the form that is working on. either is mdi or dialog form. I know that I can use the event of the form key down and then check the key code if is the esc to dispose the form, but this is not I looking for since I will have to pass from all my forms and create that event. Is there any other way when my master form is load to create my own event for any form load event? And trigger it from there to assigne my custom code for ESC key. So I will not have to pass from all the forms to create that event.
I have a class library in which i have created a simple new application with a form and added AX webbrowser control on it. In order to apply events on popup of webapplication shown in webbrowser (or to detect whether a pop-up has opend), i am using LostFocus event on webbrowser control, it was working fine till now.But after i reset my IE settings (Internet options->Advance->Reset) the event stopped working. I am using IE9 and the class library is developed in VB.NET (VS 2010).
how to trigger a textchanged event. I want to enter data in one text box and have the rest of the data show up after i fill it in. For example I enter someones name and then 3 other text boxes fill in with his height weight and ect after i entered his name.
I am trying to display the progress bar(marque) in a separate form (progressForm) while i do some calculation in background. I know the typical way of doing it is to include the calculation in background worker and show progressForm in main thread. This approach how ever will lead to lot of synch issues in my application hence I am showing the progressForm using progressForm.ShowDialog() inside the background worker process. But I need to trigger the Completed event with in the application to close the form.
I read some articles about using events and/or class events, but not a single article realy explainend the true use and benefit of using events in classes, but only how to use them.
As far as I understand, you can use an event to trigger a certain procedure of a class within another class or aspx page, but you can do the same by declaring an object of that class and call de procedure or methods directly. why and when or where we would use an event with addhandler to call a routine from a class and not declare an object of the class and call the desired routine directly.
I am trying to use multiple handles to trigger one event but I need each handle to effect the event differently. I feel like this should be simple. I want to use a Select Case to select the alteration but I can not figure out how to identify the handle used and convey that to the Select Case.
Private Sub Event(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles Button1.Click, Button2.Click Select Case handles[code].....
I have one form (FormA) that fills a combobox with data when the on-load event is trigged.In that combobox, I can select "New value" which opens another form (FormB) on top of FormA.On FormB I add the new data and saves them to a Database.Everything OK till here.I then close FormB.... and return my attention back to FormA.Now I would like to reload data into the combobox, but everyway I have tried, it will not work.
This application is meant to run at all times to download a web page every minute.To avoid freezing the UI, I read that the best solution is to move the code from a While/Sleep loop to a Timer that will be triggered every minute.The problem I have, is that the user must wait for a minute before the event is triggered:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Timer1.Interval = 60000 Timer1.Enabled = True
[code]....
Is it possible to force this event to occur instead of waiting for it?
