Implementing Drop on Picturebox on Form

Question

I seem unable to make it so that I can drop a file from the desktop to a PictureBox on a Form.

I went through all the docs I could find, but anyways the cursor always stays a stop sign.

What I did was:

Set the Form's "AllowDrop" to True.

In my code I have

Private Sub pb0A_DragOver(sender As Object, e As DragEventArgs) Handles pb0A.DragOver
    e.Effect = DragDropEffects.Copy
End Sub

Private Sub pb0A_DragEnter(sender As Object, e As DragEventArgs) Handles pb0A.DragEnter
    e.Effect = DragDropEffects.Copy
End Sub

In the docs I read that I should set the PictureBox'es property "AllowDrop" to True, but using Framework 4.5.2, I don't have this property.

I'm not running VS as an admin.

What else might be the problem here?

For some reason other than "by design" they dont expose the `AllowDrop` property in the Properties Pane. Set it in code. — Ňɏssa Pøngjǣrdenlarp, Mar 15 '18 at 16:19

Visual Vincent · Accepted Answer · 2018-03-15T16:36:05.927

2

For some reason Microsoft has intentionally hidden the PictureBox.AllowDrop property. It isn't visible in the designer nor listed by IntelliSense, however it does exist so you can still set it through code:

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    PictureBox1.AllowDrop = True
End Sub

edited Mar 15 '18 at 16:36

answered Mar 15 '18 at 16:19

Visual Vincent

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Wow, it isn't recognized in IntelliSense. Can you add this to your answer? Had I known it earlier (I did try that, but when Intellisense didn't show it to me, I thought it wouldn't work), I'd have tried that. – tmighty Mar 15 '18 at 16:32
@tmighty : I know. They've hidden it completely (for reasons unknown), but it works. :) – Visual Vincent Mar 15 '18 at 16:33
Can you add this info to your answer for others? I mean the fact that Intellisense doesn't show it? – tmighty Mar 15 '18 at 16:34
Thank you!! Also for the great help! – tmighty Mar 15 '18 at 16:39
@tmighty : Not that it was very much to help with, but sure, no problem :). Good luck! – Visual Vincent Mar 15 '18 at 16:40
Intellisense doesnt see it because MS adds the `EditorBrowsable(EditorBrowsableState.Never)` attribute to hide it. They have indicated this is "by design" but not *why*. @tmighty – Ňɏssa Pøngjǣrdenlarp Mar 15 '18 at 17:14

Implementing Drop on Picturebox on Form

1 Answers1