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POHow can I respond to events raised by programmaticly created UI elements?
 

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  1. POHow can I respond to events raised by programmaticly created UI elements?
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    <p>I'm creating a board game for a piece of coursework. For the board, I'm using some nested For loops running through a 2D array to generate a "Space" object at each square.</p> <p>The Space object contains a picturebox and some data about that space.</p> <p>How can I handle events caused by clicking on the generated picturebox without having to hard-code it for each space?</p> <p>I noticed <a href="https://stackoverflow.com/questions/13023343/how-to-get-windows-for-to-raise-mouseclick-event-for-programatically-created-pic">this</a> question seems to address this, but it's in C# and I couldn't translate it to VB.Net.</p> <p>Thanks in advance!</p> <p>Edit: This is how the board is generated</p> <pre><code> Dim board(23, 24) As Space Private Sub GenerateBoard() Dim spaceSize As New Size(30, 30) Dim spaceLocation As New Point Dim validity As Boolean For Y = 0 To 24 For X = 0 To 23 spaceLocation.X = 6 + (31 * X) spaceLocation.Y = 6 + (31 * Y) If validSpaces(Y).Contains(X + 1) Then validity = True Else validity = False End If board(X, Y) = New Space(validity, spaceSize, spaceLocation) Me.Controls.Add(board(X, Y).imageBox) board(X, Y).imageBox.BackColor = Color.Transparent board(X, Y).imageBox.BringToFront() Next Next End Sub </code></pre> <p>Space Class:</p> <pre><code>Public Class Space Dim _active As Boolean Dim _imageBox As PictureBox Public Sub New(ByVal activeInput As Boolean, ByVal size As Size, ByVal location As Point) _active = activeInput _imageBox = New PictureBox With _imageBox .Size = size .Location = location .Visible = False End With End Sub Property active As Boolean Get Return _active End Get Set(value As Boolean) _active = value End Set End Property Property imageBox As PictureBox Get Return _imageBox End Get Set(value As PictureBox) _imageBox = value End Set End Property Public Sub highlight() With _imageBox .Image = My.Resources.Highlighted_slab .Visible = True End With End Sub End Class </code></pre>
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    1. USOliver Hawes
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    1. COPlease always share what you have tried and what is your exact problem. Nobody wants to do your homework but of course we will help you fixing real problems. So: What does not work?
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      1. POHow can I respond to events raised by programmaticly created UI elements?
      1. USmr.VVoo
    2. CO@Mr.VVOO Well I'm not sure how to approach the problem. At the moment I have 600 programatically generated pictureboxes stored in a 2D array, and no way of handling click events from them. I tried creating an event to handle click events on the array, which didn't work (ie: `Sub space_Click(sender As Object, e As EventArgs) Handles board().Click`). The only other "solution" I can think of is to manually write a routine to handle each picturebox, which would be exceptionally inefficient.
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      1. POHow can I respond to events raised by programmaticly created UI elements?
      1. USOliver Hawes
    3. COSo then maybe you should provide some code that others can see where and how to start.
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      1. USmr.VVoo
 

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