Add Events For Dynamically Created Buttons?

Jan 14, 2010

My process is as follows:I access a database table to determine what questions to ask (20-100 questions).Each question is display along with, possibly, a "done" button.My code to do this is as follows:


If datareader("Who_Second").ToString = lbl_Your_Position.Text Then
Dim b1 As New ImageButton
b1.ID = "btn_second" & datareader("QCC_Q_ID").ToString

[code]....

What I need to do for each button is strip out what the "QCC_Q_ID" is for that button and insert information into another table of the DB.My partial code for this is as follows:

Sub btn_done_clicked(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
Dim MyDate As Date
Dim QCC_Q_ID, Position As String

[code]....

Two problems:1. My sub is never being called, so I can only assume that my "addhandler" is not working.2. QCC_Q_ID = e.ToString.... That doesn't seem right - is it? What I need to do is get the name of the button (btn_second13) and get just the number out of that (13). Is there any easier way to keep track of that ID?

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Adding Click Events To Array Of Buttons Created Dynamically

Mar 27, 2012

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim rgen As New Random

[Code].....

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AddHandler To Dynamically Created Buttons That References A Dynamically Created TextBox?

Dec 16, 2011

I am adding a grid of buttons to a form at run-time, and all of then use the same Handler.My question is : Is there any way I canadd the TextBox at run-time ?I know how to but without it on the form, the IDE isn't very happy about the "MyClick" Sub - TextBox1 is not declared......

' some logic here to make nice rows and Columns of buttons
' with different .Text and .Name
Me.Controls.Add(btn)

[code]....

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Dynamically Creating Methods For Dynamically Created Buttons?

Mar 15, 2011

I have this code.

Code:
Public Class Form1
Dim NPB As Button
Dim x As Integer

[code]....

As you can see, when I open a program from my menu, a new button will be created with text similar to this, "C:Program ". The button it self will not do anything. How can I create the method at the same time the button it is for is created? Also how can I change the text do that it gives me, for example, CCleaner.exe instead of the whole target path?

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Events For A Dynamically Created Button?

Aug 17, 2010

I have made an click event for a button which creates buttons dynamically and I added events to the dynamic buttons by using addhandler but it says it the button is not declared. Here is the code for dynamic buttons:

Private Sub MenuBtnNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuBtnNew.Click

[Code]...

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Deleting Lots Of Dynamically Created Buttons?

Jun 2, 2012

I'm a new programmer to vb.net, so apologise for what is likely to be ignorance.
I'm building a simple gui for a database interface, with many parent and child items within it. Upon a form I create buttons depending on how many items (parents/children). I've got the creation of the buttons thus:

For RowNumber As Integer = 0 To NoOfRows
Dim Buttoni As New Button
Buttoni.Location = New Point(LocationX, LocationY)

[Code]....

But I'm struggling with a way to delete the buttons to make way for a new set to replace them... I can delete a single one upon its click, but I'd like to delete all of the buttons that have been created in this way before re-creating them.

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Create Events To Controls On A Dynamically Created TabPage?

Mar 11, 2010

I have VB 2008 Express and I am also new to VB. My problem is I cannot find any assistance with creating an Event that is attached to a Control that I inserted on a dynamically creeated TabPage. I call the "create_tab" sub (below) that creates a New TabPage and add some Controls (Button, two textboxes). Now, that I have the TabPage (and there could be multiple), I want to bind an Event to these items. So when a user Clicks on the Button in TabPage1, for example, a Sub executes where I can manipulate the data contents of the textboxes. Here's My code that creates the tabpages dynamically.

[Code]...

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Handle Click- Events Of Dynamically Generated Buttons?

Sep 20, 2010

Am on creation of touch screen UI system.And am generating button for selecting products

Under certain category.

--> array of button creating dynamically And placing in TABPAGE when user selects Tab for category. The button will be created with the name of products, Under the category selected.

{
'the way am creating controls.
mybutton(j) = new button()
mybutton(j).top = 100
}

How can i get the Click event of those buttons-( in the array)....??

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Centering (Perfectly) Dynamically Created Buttons On Form?

Jul 31, 2011

I am currently developing a simple menu application that has a control array of buttons and I am having a hard time with re-sizing the form and centering the buttons. These buttons are created at compile time (with parameters from an INI file) and my current centering algorithm seems to slightly set them to the right. I am using the "button.location = new Point(...,...)" method but after reading about this it says the values locate the buttons left upper corner rather than center, thus accounting for the slight offset to the right.

My two questions are this:
How can I perfectly center these buttons at compile time? I have tried accounting for the difference by subtracting half of the button's width but the button width and point properties seem to be incompatible and the button gets heavily offset.

And... my other goal for re-sizing the menu is to have the buttons perfectly expand and contract when being re-sized. It seems as though anchoring is ineffective when the buttons are created dynamically so I have been forced to write ratio algorithms... Is there a way to get anchoring to work?

Here's what I have in the load up :
MyControlArray(i).Location = New Point(CInt(((Width - ButtonWidth) / 2) +_
(ButtonWidth / 2)), CInt((Height - MyControlArray(i).Height) / 2))

I have already tried:
New Point(CInt(((Width - ButtonWidth) / 2)), CInt((Height - MyControlArray(i).Height)_
/ 2))

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Forms :: Get Information About Dynamically Created Array Of Buttons

Jul 2, 2009

For example, when I click on the btn(5) I would like the textbox1 says: "5"

[Code]....

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Dynamically Created Event - Button To Simply Set A String Variable Equal To The Clicked Buttons Text

Mar 14, 2009

I have a form that I am adding a set of buttons to. I am adding an event to those buttons. I need this event to function slightly to determine what button was pressed.

I need the button to simply set a string variable equal to the clicked buttons text so I can determine what button was pressed.

How can this be accomplished?

''Adding the buttons''
For Each dr In dtMenus
Dim strMenuName As String
strMenuName = dr.Item("strMenuName").ToString

[CODE]...

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Access Objects On A Dynamically Created UserControl An A Dynamically Created Tab Page?

Dec 5, 2011

I can usually find the answers to most of my questions via the Google Gods, but not this time.I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.

On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection. I can't get my head around how to access the objects on the newly created tabpage.

What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it!

[Code]...

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Access A Dynamically Created Control On A Dynamically Created Form

Jul 16, 2009

I have an application that dynamically creates winforms.

Dim NewS As New Form
Dim NewT as new Timer
NewT.Interval = 5000

[Code].....

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Access A Dynamically Created Control On A Dynamically Created F?

Jul 16, 2009

I have an application that dynamically creates winforms.

Dim NewS As New Form
Dim NewT as new Timer
NewT.Interval = 5000

[code]......

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Add Created Cb Into Events/

Mar 14, 2012

So, I'm at the stage where I have created checkboxes through the codes.Not through the toolbox.

They are added correctly to the form when I test it.Checkboxes can be checked or unchecked correctly.

But my problem is this:I want to use events mouseclick or mousehover with those checkboxes.

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How To Create / Add Events Dynamically

Nov 23, 2010

I have a form with a textbox to enter a number and a button called "Create". When a user enters a number and clicks create the form gets populated with the number of buttons entered in the textbox and the title of the buttons are labeled by consecutive numbers. For example if you enter 5 the form will populate with 5 buttons labeled button1, button2, ...button5. When you click on these newly created buttons a messagebox will popup stating the buttons name. Basically I need to know how to create events and populate them with code I guess dynamically.

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How To Make Events And Buttons

Feb 1, 2010

I am trying to make a working calculator. Would like to learn about events in the process.Primative example:Sub Subroutine(ByVal sender As System.Object, ByVal e As System.EventArgs)What does the 'e' stands for?

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Can't See Dynamically Created Labels?

Mar 5, 2011

user control, I'm dynamically creating an arrary of several labels within a groupbox on the controls form. This is done in the load event.The user control is then placed on the form of mainapplication and then run. My problem being that the labels are invisiblen I launch the app. The visible property for the labels is set to true during the creation of the controls.

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How To Use A Dynamically Created UpdatePanel On .NET

Jul 6, 2011

I have the following code:[code]ok, now in another part of my code (another method) i want to get this update panel and work on it. I want something like: [code]

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Adding Controls And Their Events Dynamically?

Oct 1, 2011

I'm developing a website in visual studio 2008 using (asp.net/vb)I have to allow registered users to build pages and add controls that are already defined by the same userMy problem is how to build this page dynamically?In other words, I'd like to make like any CMS (e.g. Joomla). CMSs allow us to make new pages and add our controls then save them..

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Attach Events To A Control Dynamically

Oct 25, 2009

I have code that reads file paths froma text file into my application for an mru list on my apps main menu. The menuitems are added programatically from each line of the text file. How can i attach events to these menu items?

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Asp.net - Add Buttons With Events To A Custom TreeNode?

Dec 22, 2009

I extended treeview, treenode, and nodetype so I could have custom nodes. Certain nodes have image buttons on them allowing them to add a child node or delete the node. I can't handle any of the events from my buttons.Public Class ContentTreeView Inherits TreeView Public Event OnAddChild(ByVal sender As Object, ByVal e As EventArgs) Public Event OnDelete(ByVal sender As Object, ByVal e As EventArgs)

[Code]...

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How To Get Buttons On Form To Respond To Key Events

Nov 23, 2010

How can I make buttons on a form to respond to keypress, keyup and keydown event?

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Dynamically Generated Buttons?

Feb 8, 2010

dynamically creating buttons with images in them and then accessing the on click event for that button. However lets say for example I have three buttons created during run time, button 1, 2 and 3 for simplicities sake. Each button needs to correspond to a value (lets say one, two and three). The problem comes in when i want to, for example, click on dynamically generated button 3 and have it display "three" in a message box. But button 2 might close the program. How can i reference an event when i don't know which button corresponds to which action..

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Adding Events To Newly Created Controls?

Mar 5, 2010

Im curently writing an app for windows mobile (so its using the compact .net framework)It has a loop which finds out how many images are in a folder, makes a picturebox for each one, then sets the .image property to the appropriate image. It also adds the name, size, location etc.What I dont know how to do is add a mouseclick event to it?I probably would have a subroutine already written in the code which could be used, or would it have to be a new one made for each picturebox?

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Handle Events For Objects NOT Created In The Design Tab?

Jan 10, 2012

I have created a PictureBox array to hold 104 playing cards that are all visible at the same time.I did this with this line in the declarations:Shared Card(104) As PictureBox

And with these lines in the Form_Load module:

For I% = 1 To 104
Card(I%) = New PictureBox
Card(I%).Name = String.Format("Card{0}", I%.ToString)
Card(I%).Size = New Size(71, 96)

[Code]...

I have been successful in creating the array, positioning each and entering the images for all 104 PictureBoxes, but now I want to add code for the event "MouseDown.I copied the code for this event from my VB3 program and VB10 automatically updated the list of parameters, but nothing has linked the objects (Card) to the code.

I have tried to append "Handles Card.MouseDown" as well as several variations with brackets to indicate that it is an array.Auto-complete doesn't include "Card" as an option, and of course, since the array was never an object added to the form design, I can't create the empty module from there.

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.net - Getting Value From Dynamically Created Textbox And Checkbox?

Jun 20, 2011

i write the following code to create code

Dim i, x, y As Integer
x = 30
y = 25
i = 0

[code]....

i want to retrive the textvalue of checkbox whose checked property is true and respective textbox at a buttonclick event. Problem is in finding the controls and their textvalue. any one can help?Thanks in Advance.dt1 is datatable .For window form application.

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Access Dynamically Created Control?

Aug 7, 2010

I have created two dynamic objects in my project; one being a button and the other a listview. I have added addHandlers to the button so that I can print out information from the listview. The problem is I don't know how to access the listview through the button_click Sub.[code]...

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Accessing Dynamically Created Labels - ASP.NET?

Apr 28, 2009

My current project involves displaying questions/answers from two different databases to be used to compare values and make judgements. The number of questions, choices, and answers is all variable. Thus I am attempting to create labels dynamically to show the information on the screen and create textboxes to leave comments. My problem is not knowing how to then access these lables, since I can't code in to use "label_comments" & (i) as it doesn't exist (at least, I can't get it to work).

First, my code for creating and displaying the information:

db_connection = New SqlConnection(ConfigurationSettings.AppSettings("ConnectionStringMerrill3"))
db_connection.Open()

[Code].....

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Add Image To Dynamically Created Button?

Feb 16, 2012

I am trying to add an image to button but it errors out on line marked with [code]...

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