Can't click-drag-drop

I having sudden and crippling trouble when I try to click and drag files in the finder. When I click-drag a file icon, almost always (>95% of attempts) nothing happens (or the file attempts to open). Rarely the icon moves--but usually some random, uncontrolled, unexpected distance on the screen. Then I "lose" it as if I had released the mouse button. This has resulted in files being dropped indiscriminately in other folders, opening unintended applications, etc.
A related (?) problem: similar malfunctions arise when I try to click and drag-select text in a document.
This happens with equal frequency and severity on each of two hard drives, one running 10.3.9 and the other running 10.4.7.
I hope someone out there recognizes these symptoms and can prescribe action. Thanks.
upgraded g4 tower (1.4 GHz, 1 Gb memory)

update: changing the batteries on the wireless Logitech mouse slightly improved the situation--but not by much.
update 2: when I swap in an old corded one-button Apple mouse, the problem disappears, which places the blame squarely on the wireless mouse. I should have thought of doing this before posting in this forum, sorry.
Do wireless mice really lose it so abruptly like this? rats, I've gotten accustomed to those programmable buttons and the scroll wheel...

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Can I just drag/drop files to the TC to back them up ?

As it appears to be 'just' a hard drive, can I simply drag/drop any files I want to back up immediately, onto the TC and they will copy across ?
Will this not affect the backup images ?

Yes. The Time Capsule is indeed just a disk being served across the network with no special purpose. It is not dedicated to Time Machine (though that's probably what most people buy & use it for and it's certainly marketed for that purpose).
If you were doing Time Machine backups to a local disk (e.g. Firewire or USB connected external drive) then you'd you'd see a folder for your computers backups with loads of folders inside named for the date & time of that backup. Those are all maintained by Time Machine. You can drop a file anywhere else in the drive (don't drop it inside the folders that Time Machine maintains).
When using either Time Capsule or the newer Airport Extreme Base Station with the GigE & USB port for printer/disk support, Time Machine works just like a local disk except it encrypts the backup in a sparse image file (basically the same thing as 'FileVault') They key to encrypt/decrypt the data in the spare image is kept in your keychain. You can click your Time Capsule in Finder to mount it and you'll see the sparsebundle file(s). Your Time Machine backups are in the sparebundle files. You can drop & drop files anywhere you want on the Time Machine other than inside the sparsebundles (Time Machine manages them... so you shouldn't mess with those manually unless you know what you're doing.)

Can't use drag&drop

Hello, I'm using MacBook Pro (retina, 15", late 2013, 2,3 GHz Intel core i7) and after using for a while happened smh strange. I can't use drag&drop, so I can't select the object and drag it. What is wrong?

Hello!
I wonder, does the issue persist even after a simple restart of OS X?
If so, please start Disk Utility (it's in your Applications>Utilities folder), click on your harddrive and select [repair disk permissions]

How i can do a drag drop between container (grid)?

I am trying to work out a task with Drag and Drop(WPF ,C#)to include in a demo ,i will explain easy showing an example of code in XAML
<Grid x:Name="LayoutRoot">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid x:Name="container1" Grid.Row="0" >
<Grid Name="grid1" Background="Aqua" Margin="15"></Grid>
</Grid>
<Grid x:Name="container2" Grid.Row="1" >
<Grid Name="grid2" Background="blue" Margin="15"></Grid>
</Grid>
<Grid x:Name="container3" Grid.Row="2" >
<Grid Name="grid3" Background="green" Margin="15"></Grid>
</Grid>
</Grid>
My purpose is when the user drag the
grid1 in the
container2 automatically the grid2 will go to place in the
container1 (basically I want to swap the grids) then this process will be used every time need to drag a grid in a container. with a code that i wrote down i can do a simple drag&drop i can drag the "grid1"
to the "container2" but cannot send back automatically the grid2 to container1.
Kindly i ask if you have any advise or tips to make successful this task.
Thank you so much for your attention
Cheers!!!
*********EDIT*********
Using this code as follow i can do the drag&drop but what really i need is the grid "container "is fix and never move just the
"grid" should move between the "container "
<StackPanel Name="sp" AllowDrop="True" Background="SkyBlue" PreviewMouseLeftButtonDown="sp_PreviewMouseLeftButtonDown" PreviewMouseLeftButtonUp="sp_PreviewMouseLeftButtonUp" PreviewMouseMove="sp_PreviewMouseMove"
DragEnter="sp_DragEnter" Drop="sp_Drop">
<Grid Name="grid1" Background="Aqua" Height="120" Width="500"></Grid>
<Grid Name="grid2" Background="Blue" Height="120" Width="500"></Grid>
<Grid Name="grid3" Background="Red" Height="120" Width="500"></Grid>
</StackPanel>
private bool _isDown;
private bool _isDragging;
private Point _startPoint;
private UIElement _realDragSource;
private UIElement _dummyDragSource = new UIElement();
public MainWindow()
InitializeComponent();
private void sp_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
if (e.Source == this.sp)
else
_isDown = true;
_startPoint = e.GetPosition(this.sp);
private void sp_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
_isDown = false;
_isDragging = false;
_realDragSource.ReleaseMouseCapture();
private void sp_PreviewMouseMove(object sender, MouseEventArgs e)
if (_isDown)
if ((_isDragging == false) && ((Math.Abs(e.GetPosition(this.sp).X - _startPoint.X) > SystemParameters.MinimumHorizontalDragDistance) ||
(Math.Abs(e.GetPosition(this.sp).Y - _startPoint.Y) > SystemParameters.MinimumVerticalDragDistance)))
_isDragging = true;
_realDragSource = e.Source as UIElement;
_realDragSource.CaptureMouse();
DragDrop.DoDragDrop(_dummyDragSource, new DataObject("UIElement", e.Source, true), DragDropEffects.Move);
private void sp_DragEnter(object sender, DragEventArgs e)
if (e.Data.GetDataPresent("UIElement"))
e.Effects = DragDropEffects.Move;
private void sp_Drop(object sender, DragEventArgs e)
if (e.Data.GetDataPresent("UIElement"))
UIElement droptarget = e.Source as UIElement;
int droptargetIndex=-1, i =0;
foreach (UIElement element in this.sp.Children)
if (element.Equals(droptarget))
droptargetIndex = i;
break;
i++;
if (droptargetIndex != -1)
this.sp.Children.Remove(_realDragSource);
this.sp.Children.Insert(droptargetIndex, _realDragSource);
_isDown = false;
_isDragging = false;
_realDragSource.ReleaseMouseCapture();
Thanks :)

Hello Jonny,
Currently I do not have a sample and I have reviewed this post and find another way which seems more reasonable. Have you cosidered use a ListView instead of common grid. It seems we can do what you want with two common grid however we need to hardcoded
all the things.
If we use ListView, for example, you can see this thread:
http://stackoverflow.com/questions/20573063/creating-icon-view-mode-for-listview-wpf
and this thread:
http://stackoverflow.com/questions/9443695/how-do-i-drag-drop-items-in-the-same-listview
We can drag and drop items instead of grid, which will make this programming much easier than hard code to switch your control's location.
Best regards,
Barry
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Dear Barry Wang thank you so much for your kind support ,just open me a way to do it ,you can see in this post https://social.msdn.microsoft.com/Forums/vstudio/en-US/55873851-e86c-4a20-9b00-de3419054ba8/get-stuck-to-dragdrop-in-this-case?forum=wpf .
Wish you a Happy New Year .
Sincerley

Can't click drag within widgets in Dashboard

Not sure what caused it, but suddenly I can't click-drag WITHIN a dashboard widget. For example, if I click and hold the pulldown menu in the Dictionary to change to thesaurus, the pull-down menu won't activate. It only activates if I click and release to bring it up. And I can't select text within a text field. If I click and drag over a word to select it, the whole widget will move.
Same issue as this unresolved thread-- http://discussions.apple.com/thread.jspa?messageID=11847234&#11847234
It occurs even if I log out/in as a different user. Sure, there are workarounds, but I'd like to fix this behavior. Anyone got any ideas?

I'm in the same boat - is there a solution to this?

Why can't I Drag & Drop a link from my address bar to my Bookmarks Toolbar in 4.0? I have the toolbar activated, but I can't do this. I was able to do it no problem with 3.6.

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Why can IPhone not drag/drop BUT Ipod Touch can???!!!

Hi all,
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SvK
Message was edited by: Steven von Kampen

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LN

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Hi Bob,
just i installed a tryout version of AdobeIndesign CC and updated to latest version but the same problem occured as reported from picturerequest.
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Double-click/Drag-&-drop Photoshop files opens application but not file or I get a message saying that some files in Application Support are missing and I have to reinstall. (Photoshop CS/CS2/CS3)

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The problem you got into is a known problem after updating to Tiger. It is a small 4K file that gets trashed with the update. It is called the Adobe Unit Types. Both Photoshop and Photoshop Elements need this file to function.
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Can't click-drag-drop

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