VS 2010 Drag Drop A System.Type From A TreeView
Sep 24, 2010
I am building a 'shape editor' which looks very similar to the Visual Studio form designer. I have a Toolbox control that holds a few 'Shapes' (such as RectangleShape, EllipseShape, TriangleShape, etc) which the user should be able to drag to the design view ("Canvas") in any MDI form. The Toolbox control is just a TreeView except that I add ToolboxItems to it (which are inherited TreeNodes). This dragging however does not seem to work...
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Jun 19, 2011
I have a simple textfile which I want to drag-drop into the treeview. After the drop read the textfile (line by line) and create the nodes. There are no subnodes (what-so-ever). File looks like this:
line1
line2
line3
line4
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Jun 5, 2011
I'm able to drag and drop a node. The treeview is loaded with files and folders on the HD. The tag of the node has the path to the file/folder. [code] I only want to be able to drag a node into a folder and not into a file, as it does with this code.
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Feb 8, 2011
I'm can drag text-files to my app, but how do I get the encoding-type after reading?
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Dec 31, 2009
How to drag and drop tree view nodes to list box contol in VB.net
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Dec 9, 2010
i have to treeviews both ownerdrawall on 2 forms. the main from had the wndproc overriten.My question is why would the line in red make the the program jump to the wndproc on the other form not to return again and compleet the routine? [code]
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Mar 2, 2009
eir sequence recommended for a effective drag and drop control of the nodes in the same treeview control.I'm using windows XP with vs 2005 and code written in vb.
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Sep 14, 2011
I have a simple TreeView with HotTracking Property set to True. It works when I move the mouse over an item. But it doesn't work when I use Drag&Drop and Drag something over a TreeView Item. Is there a way to use the HotTracking with DragDrop? Or any workarounds?
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Sep 3, 2010
vb
Private Sub SystemFields_ItemDrag(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles SystemFields.ItemDrag
[code].....
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Feb 13, 2010
I've been successfully dragging one item at a time over from a listbox to a treeview, but now that I'm trying to adapt it to drag/drop multiple items, I've run into a problem.I'm getting an index out of range exception in the loop where I'm trying to gather the listbox items into a string array. Any index greater than 0 throws the exception, even though I have set the length to equal the number of selected items in the listbox. I've double-checked that this is the case many times. Watching the selecteditems.count value, I can see that it is equal to the number of items I have selected, naturally, but the exception is still thrown on this line:
sel(i) = AddonsList.SelectedItems.Item(i)
Here is the relevant drag/drop
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Jun 11, 2012
I am trying to drag an item from treeview node and number of movable picturebox should be created on windows form as we drag.But in my programme, we can drag a parent node also, and only one picturebox is created.
Public Class Form1
Dim pic As New PictureBox
Public drag As Boolean = False
[code].....
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Jun 23, 2012
So basically im around 2 months into building a text based rpg game in vb 2010 which is coming along lovely. there are unique charachter creations, bans, loans, monsters to fight, levels, skill points, spells, inn's, etc etc... you get the idea. so now its time to move on to one of the largest problems of all. an inventory :O now, i have a db with the correct information in, i have even sorted all the code for the program to read the db with the correct items and its all working fine. but now i would like to have a more gui system. meaning:a grid based box where pictures of each Item_ID are displayed so you can see what items are in your inventory at any time. now i can sort this out myself with a case select and just load all the images into the local resource and pull itempictue1 when id = 1 itempicture2 when id=2 etc etc you get the idea. what i was woundering is...
could i build a drag and drop system where the player can move the items inside the inventory fairly easily? i have done some research into this but as vb isnt much of a gaming language i've run into a fair few dead ends. Not sure if i have come across right, but in essence, if you have a grid, 4x4 and item 1 is in grid space 1 and item 2 is in grid space 2.. to swap them around with the mouse.Please, dont shout if im asking too much :L nobody likes haters. any help is much appreciated and if you dont think vb can do this then please tell me and i will consider all alternate possibilities unless you have a better idea?
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Nov 18, 2009
I am currently working on a drag and drop project and I was wondering if there is a way to drag picturebox1 and drop it in picturebox2; that will snap to a specific location in the picturebox2?
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Aug 27, 2009
ListView Drag&Drop allow to Drag&Drop between form??
Public Class frmModule
Private Sub ListView1_ItemDrag(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag[code]....
Can it be drap and drop item to other form control??How to write the event when mouse up at the other form control?
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Aug 19, 2011
I had a user ask me today if I could make it so they could simply drag and drop text from other programs into the app I've written. I found an old (2002 & 2003) article on drag and drop, but I'm sure things have been made better since then.
Anyone doing this today can point me in the right direction? Is this much of a pain to enable?
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Jul 8, 2010
I am dragging a control over a different control as part of a drag/drop operation. AllowDrop is set for both the dragged control and the drop target. There is a DragDrop handler for the drop target, but when I drop on the target, the handler is never called, and nothing happens. I expect that I am overlooking something simple, but, as might be expected, I can't see it.
When I drag onto a different type of control, it is working correctly, and dragging to the control in question was once working correctly, but not anymore. I did make a bunch of changes, but the fundamental issue is that the dragdrop event is never raised for the control that is the drop target.
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Aug 30, 2010
I have a picturebox that has a semi-complex image on it and also has a series of other pictureboxes, most of which are set to not visible. The way the program works, the user can click and drag a couple different items on the parent picturebox. The things they can drag are not actual controls, but parts of the image itself. That is all working fine. While testing, I had all of the subordinate pictureboxes (there are a variable number of them) visible showing a black background. I have now improved their implementation, so I changed the display so that only the subordinate pictureboxes that actually have something in them are visible. For all the others, they have .Visible = False.
The problem is that when I click and drag on one of the items in the parent picturebox, all the invisible pictureboxes become visible. They have no image in them, so they take on the color of the backgroud behind the parent picturebox. This is undesirable. I want the invisible pictureboxes to remain invisible during the drag and drop action. The one solution that seems promising is to set the image of all those pictureboxes to some transparent image such that, though they are visible, they will not appear as anything. A bit of testing shows that this technique would work.
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Jun 6, 2010
I have finally got the drag and drop to work on my form, so the user can drop files on it. I have used the msdn example so i can get the whole filename (path + filename). But how do i get only the filename? (lol.zip) And maybe the path where it is?
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Feb 15, 2012
Is there any way of detecting the position where the Mouse Button is released during a Drag & Drop operation. I need to know whether the intended Drop position was not reached when the mouse button is released.
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Jan 28, 2011
1) I'm dragging a file (.txt) into a rtb which works fine, but how do I get the filename? (messagebox whatever)
2) How do I restrict files to drop? (like a .exe)
vb.net
If e.Data.GetDataPresent(DataFormats.FileDrop) Then
Dim Files() As String
Files = e.Data.GetData(DataFormats.FileDrop)
Dim sReader As New StreamReader(Files(0))
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Jun 25, 2010
My project worked a first and now its giving me a problem.The error
Quote:
Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.ComponentModel.RunWorkerCompletedEventArgs'.
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Jan 26, 2012
I need to drag a tv node to a pic box, I got this
Private Sub Inv_ItemDrag(sender As System.Object, e As System.Windows.Forms.ItemDragEventArgs) Handles Inv.ItemDrag
If e.Button = MouseButtons.Left Then
[code]....
I want the picturebox2 image to change to picturebox1 image when a node is dropped there.
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Jan 25, 2012
How can I drag a node from a treeview to a picturebox and load a picture in the picturebox depending on the name of the node I dragged?
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Mar 3, 2011
I have a button that if a user clicks on the button it creates a new button without the user knowing, and they can drag it to a split container, drop it and edit the button. I am having an issue where I cannot drag or drop the button onto the split container.[code]...
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Sep 12, 2011
I am trying to make a renaming program, which I have done, but wanted to add drag and drop support. Firstly, when I drag and drop the files into a listbox they appear to be going in and are ordered randomly. I want them to go into the order they're dragged in. Secondly, instead of having the entire path such as:
D:TVThe Big Bang Theory SeasonSeason 1The Big Bang Theory S01E01 - Pilot
I want just "The Big Bang Theory S01E01 - Pilot" to go into the listbox.
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Jan 17, 2011
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there is one problem here the root node on the line "GetDirectories(info.GetDirectories(0, rootNode))" here is the error "Error 1 Value of type 'System.Windows.Forms.TreeNode' cannot be converted to 'System.IO.SearchOption'."
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Oct 31, 2010
I am using Excel 2007, VS2008 Pro.I am building a VSTO Add-in that requires "drag and drop from Excel cells to a drag-enabled task pane".So far I notice that I can only drag and drop within the cells themselves. It does not allow me to drop into the task Pane or drag past the sheet limits.(http:)[url]...
Note: The task pane has drag drop enabled, I ahve already tested I can drag/drop from task pane to excel but I need to do this the other way around?
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May 25, 2011
I am trying to figure out a way to include the listview's tag field when dragging one listview's subitems into another listview. I am hoping someone here has experience with this. My Listview drag code is below - the two listviews that I am dragging subitems into or from are LV1 and LV3. Also, this is being done in Visual Basic 2008 and the project is a windows application.
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Oct 20, 2010
drag and drop nodes within the same tree (not between trees) when users drag and drop nodes within the tree, give them the option to move the original node to a new location within the tree OR to just copy the original node in a new location (seems complex but I have a month to figure this out). change the system default blue highlight for selected nodes to another color change the system default cursors for invalid and valid drops (instead of the circle with slash indicating invalid target, i want a red minus) and (instead of the little plus sign with little box indicating a valid target, i want just a big green plus sign) add a red insert line to indicate where the node would be dropped within a tree also drag and drop the text of a node from the tree to a textbox add a "folder" image next to parent nodes and a "document" image next to children nodes
I have looked through the internet but I am having difficulty sorting through all the information available (I see a lot of information for Visual Basic 5 and 6, and those codes don't work for me in visual studio 2008). I can email anyone my code I have so far.
Public Class Form1
Private MouseIsDown As Boolean = False
Public Sub TreeView_ItemDrag(ByVal sender As Object, ByVal e As ItemDragEventArgs)Handles TreeView1.ItemDrag
[Code]....
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Jan 25, 2011
For I = 0 To 10
If Items.Count = 0 Then Exit For
Dim T As New Thread(AddressOf Thread)
T.Start(New Object() {"Test", "Test"})
[code]....
When I put same code in empty project it works.
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