drag-and-drop

问题 I need to make a client able to drag and drop images into category-folders in an ASP.NET 3.5 web-app. I was hoping that an option existed, that was almost as easy to use as the Reorderlist from Ajax Control Toolkit, and where I did not have to look into JQuery or similar handcoding. What are your recommendations? Similar questions have been asked before, like this 6 months ago...: ASP.net AJAX Drag/Drop? where MooTools is recommended, but 6 months is a long time in the ASP.NET/Ajax world, so

问题 i am a beginner android developer and i try to make a small solitaire game. to do the stacks of cards i use a Framelayout and inside each imageview represents a card. now for the drag and drop of the card i succeeded implementing the android "drag and drop" and it works for one card but if i want to drag more than one view i thought of making a new Framelayout which will hold all of the imageviews from where i pressed and onward (like if i pressed the 8 card it will have 8,7,6 and so forth)

问题 Perhaps I am looking in the wrong place, or maybe I don't quite understand the concept fully; but I'm trying to find a working example where I can drop a text file on a QComboBox , and it will trigger a drop event that I can handle. I looking through the documentation, but there isn't a whole lot of information on the subject. I have also searched around, but I haven't really found anything either. If I'm just not looking in the right place, please feel free to point me in the right direction

问题 I have a NSWindowController that contains several NSViewControllers . I would like to universally accept drag and drop events with the NSWindowController class and not be intercepted by other views such as NSTextView (contained in a NSViewController ) How can I tell NSTextView to ignore the drag & drop event? 回答1: I found out that there were two things needed to skip past NSTextView 's interception of the drag and drop event. In the NSViewController containing your NSTextView : - (void

问题 I'm working on a form that has ten picture boxes. Children should be able to drag a picture from one picture box to any of the others. I read an excellent Microsoft article that explained the steps in setting up a drag/drop between two picture boxes. There were five sub routines to drag and drop one way into a second picture box. My concern is that if the form has ten picture boxes, and the user can drag/drop between any of the ten boxes, that is a lot of code and and a lot of sub routines.

问题 There is a "field" on which some items are draggable: Here is a XAML code: <Canvas Height="180" Width="169" > <Image Canvas.Left="0" Canvas.Top="0" Height="180" Width="149" Source="../Picts/field.png" /> <Pages:FieldItem x:Name="Item2" Canvas.Left="129" Canvas.Top="34" MouseLeftButtonDown="Item1_OnMouseLeftButtonDown" MouseLeftButtonUp="Item1_MouseLeftButtonUp" MouseMove="Item1_MouseMove" /> </Canvas> And code-behind: private bool bIsCaptured = false; double mouseVerticalPosition; double

问题 I'm writing a WPF application that has grids of buttons and I want to allow the user to drag and drop buttons between grids, possibly between different instances of the application. I've tried doing this by adding a handler to the PreviewMouseMove event on the button and then calling DoDragDrop if the left mouse button is down, but when I drag and drop the button it always ends up calling DoDragDrop twice and the drop event handler twice. Does anyone know why this happens and how to prevent

问题 I would like to implement drag 'n drop with a tabcontrol in a way that dragging an item to tag strip brings it to front. Which is the most efficient and non obtrusive way? Thank you 回答1: private void TabControl_DragEnter(object sender, DragEventArgs e) { TabItem item = e.Source as TabItem; TabControl tabControl = sender as TabControl; if (item != null && tabControl != null) { if (tabControl.SelectedItem != item) tabControl.SelectedItem = item; } } 来源： https://stackoverflow.com/questions

问题 I'm jsut looking into changing the drag hover of the aggrid component. i cant find much on it... Anyone knows how to change the styles of the row in drag mode? My goal is to have a different animation (full row) like material UI/UX https://material.io/design/components/lists.html#behavior 回答1: So, actually, there is no possibility for now to modify 'ghost' template, you can try to explore deeper than I did, here is an entry point: ag-grid\src\ts\dragAndDrop\dragAndDropService.ts and

问题 I'm looking for a control for C# that can contain other controls, takes care of layout and allows drag and drop rearranging of the layout order. Simularly to the way the iphone/ipod allows you to rearrange apps. Thanks. 回答1: Using something like DockPanelSuite as a basis might be a good starting point. 回答2: I think you can implement your own easily, using FlowLayoutPanel and MouseUp, MouseDown, MouseMove events of the controls where you change the Location property approximately and