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  • Dragging a copy of all selected elements from a select box--possible?

    - by Sean
    I have a picklist web interface: a pair of select elements with a pair of buttons (a left-pointing arrow and a right-pointing arrow) between them. Users can move items between the two columns by, eg, selecting one of options in the left column and clicking on the right-pointing arrow. Now I have an enhancement request: someone wants to be able to drag-and-drop items between the two columns instead of clicking a button. The problem with my initial two-select-box setup is that as soon as I click one of the highlighted options to initiate a drag, all of the other selected options are deselected. Using jQuery, I've attached mousedown event handlers to both the select boxes and each individual option that just call preventDefault() on the event object, but this isn't sufficient. On Firefox 3 the clicked-on option loses focus immediately, but all other options are still deseleted, and on IE6 (which I regrettably still have to support) it makes no difference at all. So I thought I could maybe create a reasonable facsimile of a select box using list elements or divs or something. I can create something reasonable-looking that works on Firefox, but on IE6, if I shift-click on an element of my pseudo-select object (in order to select a range of options), IE selects all of the text between where I click and the last place I clicked. Again, I've attached preventDefault-ing mousedown, mouseup, and click handlers to all of the elements involved, but it doesn't help. I've even tried overlaying transparent divs over both my original select boxes and my pseudo-select objects, thinking to intercept mouse clicks and manage the selections manually, but I can't make it work on IE. If I use a select box, I can't prevent clicks from changing the selection, and if I use text that just looks like a select element, I can't prevent it from selecting a range of text on a shift-click. Is there some general solution, or am I just out of luck?

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  • Constraining to parent container with MouseDragElementBehavior

    - by anonymous
    Hi all, I just had a question regarding constraining a control's drag and drop movement to its parent canvas. I tried using the ConstrainToParentBounds property on the MouseDragElementBehavior, however, when this is used the drag must be done really slowly or the movement of the control is choppy or stops altogether. So I am attempting to implement my own boundary constraints. I seem to be running into difficulty though. I am still using the MouseDragElementBehavior but am attempting to supplement it by also handling mouseleftbuttondown, mousemove, mouseleftbuttonup events. I know that these are working (haven't been overridden by the MouseDragElementBehavior) as I have tested them using other methods. I will post my current code below: private void Control_MouseMove(object sender, MouseEventArgs e) { MyControl mc = (MyControl)sender; Canvas canvas = (Canvas)mc.parent; GeneralTransform ct = canvas.TransformToVisual(Application.Current.RootVisual as UIElement; Point canvas_offset = ct.Transform(new Point(0,0)); double canvasTop = canvas_offset.Y; double canvasLeft = canvas_offset.X; GeneralTransform gt = mc.TransformToVisual(Application.Current.RootVisual as UIElement); Point offset = gt.Transform(new Point(0,0)); double controlTop = offset.Y; double controlLeft = offset.X; if(isMouseCaptured) { if(controlTop < canvasTop) { mc.Opacity = 1; //to test if conditions are being met, seems to indicate ok mc.setValue(Canvas.TopProperty, canvasTop); } if(controlLeft < canvasLeft) { mc.Opacity = 1; mc.setValue(Canvas.TopProperty, canvasTop); } } } This is what my code looks like at the moment (I realize there is nothing there for right/bottom). I've tried a bunch of different things at this point and none of them seem to give the desired result; the control's movement is still not constrained to the canvas. Any help/pointers would be greatly appreciated. Thanks!

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  • Bind two images together to be dragged

    - by Ryan Beaulieu
    I'm looking for some help with a script to drag two images together at once. I currently have a script that allows me to drag thumbnail images into a collection bin to be saved later. However, some of my thumbnails have an image positioned over the top of them to represent these thumbnail images as "unknown" plants. I was wondering if someone could point me in the right direction as to how I would go about binding these two images together to be dragged. Here is my code: $(document).ready(function() { var limit = 16; var counter = 0; $("#mainBin1, #mainBin2, #mainBin3, #mainBin4, #mainBin5, #bin_One_Hd, #bin_Two_Hd, #bin_Three_Hd, #bin_Four_Hd, #bin_Five_Hd").droppable({ accept: ".selector, .plant_Unknown", drop: function(event, ui) { counter++; if (counter == limit) { $(this).droppable("disable"); } $(this).append($(ui.draggable).clone()); $("#cbOptions").show(); $(".item").draggable({ containment: "parent", grid: [72,72], }); } }); $(".selector").draggable({ helper: "clone", revert: "invalid", revertDuration: 700, opacity: 0.75, }); $(".plant_Unknown").draggable({ helper: "clone", revert: "invalid", revertDuration: 700, opacity: 0.75, }); }); Any help would be greatly appreciated. Thanks. EDIT: Website

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  • Android List View Drag and Drop sort

    - by miannelle
    I have a list of records in a listview that I want the user to be able to re-sort using a drag and drop method. I have seen this implemented in other apps, but I have not found a tutorial for it. It must be something that others need as well. Can anyone point me to some code for doing this?

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  • CSS: achieving TWO-WAY infinite scroll with mouse drag

    - by Miguel Ping
    Hi, I'm trying to create an infinite scroll component. I'm using this site as a tutorial, but it seems that I can only get the infinite scroll on one way, because when I add elements to the leftmost side, the scrollLeft property auto-adjusts thus the page gets a quirky scroll, jumping instead of making a smooth movement. Is there any way of achieving infinite scroll both-ways? I don't plan to use scrolling buttons, just mouse drag for moving the scroll view.

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  • drag to pan on an UserControl

    - by Matías
    Hello, I'm trying to build my own "PictureBox like" control adding some functionalities. For example, I want to be able to pan over a big image by simply clicking and dragging with the mouse. The problem seems to be on my OnMouseMove method. If I use the following code I get the drag speed and precision I want, but of course, when I release the mouse button and try to drag again the image is restored to its original position. using System.Drawing; using System.Windows.Forms; namespace Testing { public partial class ScrollablePictureBox : UserControl { private Image image; private bool centerImage; public Image Image { get { return image; } set { image = value; Invalidate(); } } public bool CenterImage { get { return centerImage; } set { centerImage = value; Invalidate(); } } public ScrollablePictureBox() { InitializeComponent(); SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true); Image = null; AutoScroll = true; AutoScrollMinSize = new Size(0, 0); } private Point clickPosition; private Point scrollPosition; protected override void OnMouseDown(MouseEventArgs e) { base.OnMouseDown(e); clickPosition.X = e.X; clickPosition.Y = e.Y; } protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X = clickPosition.X - e.X; scrollPosition.Y = clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.FillRectangle(new Pen(BackColor).Brush, 0, 0, e.ClipRectangle.Width, e.ClipRectangle.Height); if (Image == null) return; int centeredX = AutoScrollPosition.X; int centeredY = AutoScrollPosition.Y; if (CenterImage) { //Something not relevant } AutoScrollMinSize = new Size(Image.Width, Image.Height); e.Graphics.DrawImage(Image, new RectangleF(centeredX, centeredY, Image.Width, Image.Height)); } } } But if I modify my OnMouseMove method to look like this: protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if (e.Button == MouseButtons.Left) { scrollPosition.X += clickPosition.X - e.X; scrollPosition.Y += clickPosition.Y - e.Y; AutoScrollPosition = scrollPosition; } } ... you will see that the dragging is not smooth as before, and sometimes behaves weird (like with lag or something). What am I doing wrong? I've also tried removing all "base" calls on a desperate movement to solve this issue, haha, but again, it didn't work. Thanks for your time.

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  • Cannot drag window in remote desktop.

    - by Thomas
    When I use remote desktop to access my windows 2008 server from windows vista I cannot re size or drag any windows in the RDP session. I can RDP in and maximize windows and minimize just fine buy I cannot re size or move a window. Any help I cannot find anything on Google.

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  • Superfish drag-drop problem

    - by HasanGursoy
    Hi, I've created a menu with jQuery superfish but I'm having problem when drag-drop on one of the top menu items. .sfHover class is added when pressed on a item and if this item is not clicked and dropped item remains with .sfHover class and because of this, background of the item is changed. How can I fix this problem? Here is the demo.

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  • problem in saving drag&drop object in database

    - by Mac Taylor
    hey guys i made a script inspired by wordpress widgets'page to drag&drop blocks of my sites but problem is in saving the position after droping this is jquery code , i used to do the above target : <script type="text/javascript" >$(function(){ $('.widget') .each(function(){ $(this).hover(function(){ $(this).find('h4').addClass('collapse'); }, function(){ $(this).find('h4').removeClass('collapse'); }) .find('h4').hover(function(){ $(this).find('.in-widget-title').css('visibility', 'visible'); }, function(){ $(this).find('.in-widget-title').css('visibility', 'hidden'); }) .click(function(){ $(this).siblings('.widget-inside').toggle(); //Save state on change of collapse state of panel updateWidgetData(); }) .end() .find('.in-widget-title').css('visibility', 'hidden'); }); $('.column').sortable({ connectWith: '.column', handle: 'h4', cursor: 'move', placeholder: 'placeholder', forcePlaceholderSize: true, opacity: 0.4, start: function(event, ui){ //Firefox, Safari/Chrome fire click event after drag is complete, fix for that if($.browser.mozilla || $.browser.safari) $(ui.item).find('.widget-inside').toggle(); }, stop: function(event, ui){ ui.item.css({'top':'0','left':'0'}); //Opera fix if(!$.browser.mozilla && !$.browser.safari) updateWidgetData(); } }) .disableSelection(); }); function updateWidgetData(){ var items=[]; $('.column').each(function(){ var columnId=$(this).attr('id'); $('.widget', this).each(function(i){ var collapsed=0; if($(this).find('.widget-inside').css('display')=="none") collapsed=1; //Create Item object for current panel var item={ id: $(this).attr('id'), collapsed: collapsed, order : i, column: columnId }; //Push item object into items array items.push(item); }); }); //Assign items array to sortorder JSON variable var sortorder={ items: items }; //Pass sortorder variable to server using ajax to save state $.post('updatePanels.php', 'data='+$.toJSON(sortorder), function(response){ if(response=="success") $("#console").html('<div class="success">Saved</div>').hide().fadeIn(1000); setTimeout(function(){ $('#console').fadeOut(1000); }, 2000); }); } </script> and a simple php file but problem is its not sending data to target php file is there anything wrong with my code ?

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  • Allow repeater to be arranged using drag-drop

    - by o-logn
    Hey all, I have a repeater that's bound to a SQL Data Source (using ASP.NET). Are there any JQuery plugins/efficient way of converting my repeater into something that can be sorted via drag and drop? i.e. users can rearrange the order of the data, which updates the database? Thanks

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  • How to store result of drag and drop as a image

    - by Jimmy
    I want to take the screenshot of the result of drag and drop, but I don't know how to do. Actually, I found 2 javascript and using HTML5 such as html2canvas and canvas2image. I am now combining them together, but it's still meet some problem with the canvas2image. Please help me solve this problem if you have same experience, thank you a lot. Please help me, I've been stock here for days. Drag and drop code. <script> $(function() { $( "#draggable" ).draggable(); $( "#draggable2" ).draggable(); $( "#droppable" ).droppable({ hoverClass: "ui-state-active", drop: function( event, ui ) { $( this ) .addClass( "ui-state-highlight" ) .find( "p" ) .html( "Dropped!" ); } }); }); </script> Image generation code <script> window.onload = function() { function convertCanvas(strType) { if (strType == "JPEG") var oImg = Canvas2Image.saveAsJPEG(oCanvas, true); if (!oImg) { alert("Sorry, this browser is not capable of saving " + strType + " files!"); return false; } oImg.id = "canvasimage"; oImg.style.border = oCanvas.style.border; oCanvas.parentNode.replaceChild(oImg, oCanvas); } function convertHtml(strType) { $('body').html2canvas(); var queue = html2canvas.Parse(); var canvas = html2canvas.Renderer(queue,{elements:{length:1}}); var img = canvas.toDataURL(); convertCanvas(strType); window.open(img); } document.getElementById("html2canvasbtn").onclick = function() { convertHtml("JPEG"); } } </script> HTML code <body> <h3>Picture:</h3> <div id="draggable"> <img src='http://1.gravatar.com/avatar/1ea64135b09e00ab80fa7596fafbd340? s=50&d=identicon&r=R'> </div> <div id="draggable2"> <img src='http://0.gravatar.com/avatar/2647a7d4b4a7052d66d524701432273b?s=50&d=identicon&r=G'> </div> <div id="dCanvas"> <canvas id="droppable" width="500" height="500" style="border: 2px solid gray" class="ui-widget-header" /> </div> <input type="button" id="bGenImage" value="Generate Image" /> <div id="dOutput"></div> </body>

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  • Building drag and drop interface on iphone

    - by John Stewart
    I am trying to build an app which will have a bunch of cards that the user needs to drag and drop them onto specific drop zones. How would one go about detecting this and if the card is not on the drop zone then it should slide back. Any suggestions on how to structure this app?

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  • jquery drag and drop animation

    - by Cameron
    I have some UI functionality for drag and drop, but when an element is dropped, the animation makes it flit about all over the place for a split second before it appears in the newly dropped location. Can anyone advise how to tackle this, so that the draggable element moves more cleanly into place on success? ... success : function() { $(ui.draggable) .parent().droppable("option", "disabled", false) .end() .appendTo(droppable) .droppable("option", "disabled", true); }, ...

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  • Drag and Drop from another application with mouse button down does not fire event

    - by Keith
    I am trying to drag and drop a file onto a control in my application. The problem is that when you hold the mouse button down (i.e. dragging from widows explorer), my app does not fire any of the form events. They all work fine if the mouse is not down. Is appears that I need to enable the 'AllowDrop' for the application (it is enabled on the form) What am I missing? I am developing in vb.net 2008 in windows 7 environment

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  • Advance DataGird Header column Drag drop

    - by Atul Yadav
    Hi.. I want to prevent drag drop in some column header . Thanks My code private function _headerShift(evt:IndexChangedEvent):void{ var dg:AdvancedDataGrid= AdvancedDataGrid(evt.currentTarget); var column:AdvancedDataGridColumn = dg.columns[evt.newIndex]; var dropTarget:AdvancedDataGrid = AdvancedDataGrid(evt.currentTarget); if(evt.oldIndex > 3){ evt.stopImmediatePropagation(); evt.preventDefault(); dropTarget.validateNow(); } }

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  • Drag and Drop and identify locations with java

    - by out_sider
    I'm trying to do something quite simple, but I'm having a hard time finding good examples on the net to what I want specifically. I'd like to somehing very similer to what it's here: Dao It's a simple game called DAO and I just need to have a background image with 16 squares (4x4) and drag and drop the images (pieces) on each square to the others. I'm developing the interface using swing and I simply want to know a good place to find tutorials for such implementations or a simple suggestion on how to do it. Thanks in advance

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