Changing the cursor in WPF sometimes works sometimes doesn t

Question

On several of my usercontrols  I change the cursor by using  this Cursor   Cursors Wait    when I click on something   Now I want to do the same thing on a WPF page on a button click   When I hover over my button  the cursor changes to a hand  but when I click it  it doesn t change to the wait cursor   I wonder if this has something to do with the fact that it s a button  or because this is a page and not a usercontrol   This seems like weird behavior

User · Accepted Answer

Do you need the cursor to be a  wait  cursor only when it s over that particular page usercontrol  If not  I d suggest using Mouse OverrideCursor   Mouse OverrideCursor   Cursors Wait  try          do stuff   finally       Mouse OverrideCursor   null      This overrides the cursor for your application rather than just for a part of its UI  so the problem you re describing goes away

User · Answer

The following worked for me   ForceCursor   true  Cursor   Cursors Wait

User · Answer

If your application uses async stuff and you re fiddling with Mouse s cursor  you probably want to do it only in main UI thread  You can use app s Dispatcher thread for that   Application Current Dispatcher Invoke      gt           The check is required to prevent cursor flickering     if  Mouse OverrideCursor    cursor          Mouse OverrideCursor   cursor

User · Answer

If your application uses async stuff and you re fiddling with Mouse s cursor  you probably want to do it only in main UI thread  You can use app s Dispatcher thread for that   Application Current Dispatcher Invoke      gt           The check is required to prevent cursor flickering     if  Mouse OverrideCursor    cursor          Mouse OverrideCursor   cursor

User · Answer

The following worked for me   ForceCursor   true  Cursor   Cursors Wait

User · Answer

You can use a data trigger  with a view model  on the button to enable a wait cursor    lt Button x Name  NextButton          Content  Go          Command   Binding GoCommand    gt       lt Button Style gt            lt Style TargetType   x Type Button   gt                lt Setter Property  Cursor  Value  Arrow   gt                lt Style Triggers gt                    lt DataTrigger Binding   Binding Path IsWorking   Value  True  gt                        lt Setter Property  Cursor  Value  Wait   gt                    lt  DataTrigger gt                lt  Style Triggers gt            lt  Style gt       lt  Button Style gt   lt  Button gt    Here is the code from the view-model   public class MainViewModel   ViewModelBase         most code removed for this example     public MainViewModel              GoCommand   new DelegateCommand lt object gt  OnGoCommand  CanGoCommand               flag used by data binding trigger    private bool  isWorking   false     public bool IsWorking            get   return  isWorking          set                   isWorking   value           OnPropertyChanged  IsWorking                        button click event gets processed here    public ICommand GoCommand   get  private set       private void OnGoCommand object obj             if    selectedCustomer    null                       wait cursor ON          IsWorking   true            ds   OrdersManager LoadToDataSet  selectedCustomer ID            OnPropertyChanged  GridData                 wait cursor off          IsWorking   false

User · Answer

You can use a data trigger  with a view model  on the button to enable a wait cursor    lt Button x Name  NextButton          Content  Go          Command   Binding GoCommand    gt       lt Button Style gt            lt Style TargetType   x Type Button   gt                lt Setter Property  Cursor  Value  Arrow   gt                lt Style Triggers gt                    lt DataTrigger Binding   Binding Path IsWorking   Value  True  gt                        lt Setter Property  Cursor  Value  Wait   gt                    lt  DataTrigger gt                lt  Style Triggers gt            lt  Style gt       lt  Button Style gt   lt  Button gt    Here is the code from the view-model   public class MainViewModel   ViewModelBase         most code removed for this example     public MainViewModel              GoCommand   new DelegateCommand lt object gt  OnGoCommand  CanGoCommand               flag used by data binding trigger    private bool  isWorking   false     public bool IsWorking            get   return  isWorking          set                   isWorking   value           OnPropertyChanged  IsWorking                        button click event gets processed here    public ICommand GoCommand   get  private set       private void OnGoCommand object obj             if    selectedCustomer    null                       wait cursor ON          IsWorking   true            ds   OrdersManager LoadToDataSet  selectedCustomer ID            OnPropertyChanged  GridData                 wait cursor off          IsWorking   false

User · Answer

One way we do this in our application is using IDisposable and then with using     blocks to ensure the cursor is reset when done    public class OverrideCursor   IDisposable      public OverrideCursor Cursor changeToCursor          Mouse OverrideCursor   changeToCursor          region IDisposable Members    public void Dispose           Mouse OverrideCursor   null          endregion     and then in your code   using  OverrideCursor cursor   new OverrideCursor Cursors Wait          Do work        The override will end when either  the end of the using statement is reached or  if an exception is thrown and control leaves the statement block before the end of the statement   Update  To prevent the cursor flickering you can do   public class OverrideCursor   IDisposable     static Stack lt Cursor gt  s Stack   new Stack lt Cursor gt        public OverrideCursor Cursor changeToCursor          s Stack Push changeToCursor        if  Mouse OverrideCursor    changeToCursor        Mouse OverrideCursor   changeToCursor         public void Dispose           s Stack Pop         Cursor cursor   s Stack Count  gt  0   s Stack Peek     null       if  cursor    Mouse OverrideCursor        Mouse OverrideCursor   cursor

User · Answer

One way we do this in our application is using IDisposable and then with using     blocks to ensure the cursor is reset when done    public class OverrideCursor   IDisposable      public OverrideCursor Cursor changeToCursor          Mouse OverrideCursor   changeToCursor          region IDisposable Members    public void Dispose           Mouse OverrideCursor   null          endregion     and then in your code   using  OverrideCursor cursor   new OverrideCursor Cursors Wait          Do work        The override will end when either  the end of the using statement is reached or  if an exception is thrown and control leaves the statement block before the end of the statement   Update  To prevent the cursor flickering you can do   public class OverrideCursor   IDisposable     static Stack lt Cursor gt  s Stack   new Stack lt Cursor gt        public OverrideCursor Cursor changeToCursor          s Stack Push changeToCursor        if  Mouse OverrideCursor    changeToCursor        Mouse OverrideCursor   changeToCursor         public void Dispose           s Stack Pop         Cursor cursor   s Stack Count  gt  0   s Stack Peek     null       if  cursor    Mouse OverrideCursor        Mouse OverrideCursor   cursor

[c#] Changing the cursor in WPF sometimes works, sometimes doesn't

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