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
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.
View 1 RepliesI 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.
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?
View 1 RepliesI 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...
[Code]...
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.
View 1 RepliesI have a treeview and 4 pictureboxes, now I need to drag a node from the treeview and drop it in a picture box. the pic.box image then has to change to a picture depending on the name of the node which was dragged there.
View 3 RepliesHow to drag and drop tree view nodes to list box contol in VB.net
View 1 Repliesi 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]
View 2 RepliesI 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?
View 1 Repliesvb
Private Sub SystemFields_ItemDrag(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles SystemFields.ItemDrag
[code].....
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
[Code]...
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].....
I'm running out of walls to bang my head against. Okay new windows form with a textbox, button and TreeView Populate the TreeView.nodes with the default nodes via properties
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I want to click button1 and have the name of the childnode? Node3? placed in the textbox. Not via selection, I can do that. But via index or item number. The code I have is as follows
[Code]...
I have a treeview that is populated with a hierarchical list of regions and locations. Each region has its own list of regions and locations - you can think of these as analogous to a folder structure in windows (ie a region is like a folder than can have subfolders and files within it).My code to populate the structure is called only once (I've put in breakpoints and stepped through the code), however my treeview shows two sets of the data. When I query how many nodes there are at the top level of the treeview it tells me there is only one node, but clearly there are two. If I delete the node at position 0 in the list of nodes one copy of the tree disappears but one still remains and it this point the count of nodes in the treeview is reported as zero.
I have a toolbar associated with the treeview which includes buttons to expand all and collapse all using the built in methods of the treeview (expandall and collapseall), and these only act on the first set of nodes and ignore the second set even though I can manually expand and collapse them at run time.I have code in the AfterSelect event of the treeview and this does fire for even the phantom nodes.The other odd thing is that the code to populate the tree assigns a key to each node, and so I would expect the code to fail if it was creating duplicate nodes as it would have duplicate keys
I currently have a procedure that stores the Level, Parent.Level, and Text properties of each TreeNode in a TreeView control in a DataTable.I can't seem to come up with the logic to load this data back into the TreeView from scratch, though.
Below is what i currently have in place which does not work.
Private Sub LoadTree(ByVal table As Data.DataTable)
treeBilling.Nodes.Clear()
For Each row As Data.DataRow In table.Rows
[code]....
I'm all new to this treeview business. I have a fixed treeview, very simple and basic. Only two levels, parent and child nodes. I just need two things out of this treeview.
1) If parent is checked, check all child nodes.
2) If just one child node is unchecked, uncheck parent node.
That's it! I've been looking for this for 30 mins and I cant find it. Maybe because my vb.net is old, it doesnt seem to be the same as others =/ I'm using vb.net 2003.
I have a problem with my treeview. I have two child nodes with different parents which contains a literal (*x). In this case (*1) (view image)
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i have a treeview which is databoud to a access dataabse, the database has 1 table, and the treeview shows everyname from column 2.
What im trying to achive is for the treeview to also display the names from column 5 and 6 as child nodes of the name from column 2. Been tinkering all morning to no luck, googles not finding much int he way of working examples, just lots of garbage.
Anybody here work with Nodes is a TreeView? I have a tree structure and need to enable editing to the selected Node. I have a String Variable where the enduser can Type in a new Folder name, click ok and the structure gets made. But I need the Node Name to follow suit. The only way I know how to enable editing is:
[Code]...
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?
View 2 RepliesListView 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?
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?
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.
I have a treeview that is populated from a HDD folder collection. Its structure is similar to the following (however the structure is dynamic):
My Disk:
|
|--folder1(tag:folder)
| |--subfolder1(tag:folder)
[code]....
I call the sub as follows:
deleteNode(treeview1.Nodes(0).Nodes)
However, the above is not working properly. It deletes only some nodes and not all the targeted nodes.
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.
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?
[Code]...
I'm can drag text-files to my app, but how do I get the encoding-type after reading?
[Code]...
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.
View 8 Replies1) 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))