如何禁用 jquery-ui 可拖动的？

Could create a DisableDrag(myObject) and a EnableDrag(myObject) function

myObject.draggable( 'disable' )

Then

myObject.draggable( 'enable' )

It took me a little while to figure out how to disable draggable on drop—use ui.draggable to reference the object being dragged from inside the drop function:

$("#drop-target").droppable({
drop: function(event, ui) {
ui.draggable.draggable("disable", 1); // *not* ui.draggable("disable", 1);
…
}
});

HTH someone

To temporarily disable the draggable behavior use:

$('#item-id').draggable( "disable" )

To remove the draggable behavior permanently use:

$('#item-id').draggable( "destroy" )

Seems like no one looked at the original documentation. May be there was no it at that time))

Initialize a draggable with the disabled option specified.

$( ".selector" ).draggable({ disabled: true });

Get or set the disabled option, after init.

//getter
var disabled = $( ".selector" ).draggable( "option", "disabled" );
//setter
$( ".selector" ).draggable( "option", "disabled", true );

In the case of a dialog, it has a property called draggable, set it to false.

$("#yourDialog").dialog({
draggable: false
});

Eventhough the question is old, i tried the proposed solution and it did not work for the dialog. Hope this may help others like me.

To enable/disable draggable in jQuery I used:

$("#draggable").draggable({ disabled: true });


$("#draggable").draggable({ disabled: false });

@Calciphus answer didn't work for me with the opacity problem, so I used:

div.ui-state-disabled.ui-draggable-disabled {opacity: 1;}

Worked on mobile devices either.

Here is the code: http://jsfiddle.net/nn5aL/1/

enabledisabledraggablejqueryopacityproblemhtml

The following is what this would look like inside of .draggable({});

$("#yourDraggable").draggable({
revert: "invalid" ,
start: function(){
$(this).css("opacity",0.3);
},
stop: function(){
$(this).draggable( 'disable' )
},
opacity: 0.7,
helper: function () {
$copy = $(this).clone();
$copy.css({
"list-style":"none",
"width":$(this).outerWidth()
});
return $copy;
},
appendTo: 'body',
scroll: false
});

Change draggable attribute from

<span draggable="true">Label</span>

to

<span draggable="false">Label</span>

I have a simpler and elegant solution that doesn't mess up with classes, styles, opacities and stuff.

For the draggable element - you add 'start' event which will execute every time you try to move the element somewhere. You will have a condition which move is not legal. For the moves that are illegal - prevent them with 'e.preventDefault();' like in the code below.

    $(".disc").draggable({
revert: "invalid",
cursor: "move",
start: function(e, ui){
console.log("element is moving");


if(SOME_CONDITION_FOR_ILLEGAL_MOVE){
console.log("illegal move");
//This will prevent moving the element from it's position
e.preventDefault();
}


}
});

You are welcome :)