//public static bool RemoveMouseWheelSupport(ScrollViewer childScrollViewer)
//{
// if (mouseWheelHelper!= null)
// {
// try
// {
// mouseWheelHelper.RemoveWheelSupport(childScrollViewer);
// mouseWheelHelper = null;
// return true;
// }
// catch
// {
// return false;
// }
// }
// return false;
//}
public static bool RemoveMouseWheelSupport(FrameworkElement mouseMoveElement)
{
if (mouseWheelHelper != null)
{
try
{
mouseWheelHelper.RemoveWheelSupport(mouseMoveElement);
mouseWheelHelper = null;
return(true);
}
catch
{
return(false);
}
}
return(false);
}
//public static bool RemoveMouseWheelSupport(ScrollViewer childScrollViewer)
//{
// if (mouseWheelHelper!= null)
// {
// try
// {
// mouseWheelHelper.RemoveWheelSupport(childScrollViewer);
// mouseWheelHelper = null;
// return true;
// }
// catch
// {
// return false;
// }
// }
// return false;
//}
public static bool RemoveMouseWheelSupport(FrameworkElement mouseMoveElement)
{
if (mouseWheelHelper != null)
{
try
{
mouseWheelHelper.RemoveWheelSupport(mouseMoveElement);
mouseWheelHelper = null;
return true;
}
catch
{
return false;
}
}
return false;
}
public static ScrollViewer AddMouseWheelSupport(this ScrollViewer childScrollViewer, FrameworkElement mouseMoveElement, double scrollAmount)
{
mouseWheelHelper = new MouseWheelSupport(mouseMoveElement, null);
return AddScrollViewerMouseWheelSupport(childScrollViewer, scrollAmount);
}
/// <summary>
/// Adds mouse wheel support to a <see cref="ScrollViewer"/>.
/// As long as the <see cref="ScrollViewer"/> has focus,
/// the mouse wheel can be used to scroll up and down.
/// </summary>
/// <param name="parentScrollViewer">The parent <see cref="ScrollViewer"/> which contains another <see cref="ScrollViewer" /> which should have mouse wheel scrolling support.</param>
/// <param name="childScrollViewer">A child <see cref="ScrollViewer"/> to add mouse wheel scrolling support to.</param>
/// <param name="scrollAmount">The amount to scroll by when the mouse wheel is moved.</param>
/// <returns>The child <see cref="ScrollViewer"/>.</returns>
public static ScrollViewer AddMouseWheelSupport(this ScrollViewer parentScrollViewer, ScrollViewer childScrollViewer, double scrollAmount)
{
mouseWheelHelper = new MouseWheelSupport(childScrollViewer, parentScrollViewer);
return AddScrollViewerMouseWheelSupport(childScrollViewer, scrollAmount);
}
/// <summary>
/// This should be called exactly one time in the constructor of the application's main XAML
/// code behind file, immediately after the call to InitializeComponent().
/// </summary>
/// <param name="applicationRootVisual">The application root visual. Just give a name to the root element of your application and pass it in here.</param>
/// <param name="activationMode">Specifies whether the mouse wheel is associated with a <see cref="ScrollViewer" /> by simply hovering over it (OnHover) or if the user must explicitly assign focus to it before the wheel affects it (OnFocus).</param>
public static void Initialize(FrameworkElement applicationRootVisual, MouseWheelAssociationMode activationMode)
{
MouseWheelSupport.RegisterRootVisual(applicationRootVisual);
MouseWheelSupport.UseFocusBehaviorModel = (activationMode == MouseWheelAssociationMode.OnFocus);
}
public static ScrollViewer AddMouseWheelSupport(this ScrollViewer childScrollViewer, FrameworkElement mouseMoveElement, double scrollAmount)
{
mouseWheelHelper = new MouseWheelSupport(mouseMoveElement, null);
return(AddScrollViewerMouseWheelSupport(childScrollViewer, scrollAmount));
}
/// <summary>
/// Adds mouse wheel support to a <see cref="ScrollViewer"/>.
/// As long as the <see cref="ScrollViewer"/> has focus,
/// the mouse wheel can be used to scroll up and down.
/// </summary>
/// <param name="parentScrollViewer">The parent <see cref="ScrollViewer"/> which contains another <see cref="ScrollViewer" /> which should have mouse wheel scrolling support.</param>
/// <param name="childScrollViewer">A child <see cref="ScrollViewer"/> to add mouse wheel scrolling support to.</param>
/// <param name="scrollAmount">The amount to scroll by when the mouse wheel is moved.</param>
/// <returns>The child <see cref="ScrollViewer"/>.</returns>
public static ScrollViewer AddMouseWheelSupport(this ScrollViewer parentScrollViewer, ScrollViewer childScrollViewer, double scrollAmount)
{
mouseWheelHelper = new MouseWheelSupport(childScrollViewer, parentScrollViewer);
return(AddScrollViewerMouseWheelSupport(childScrollViewer, scrollAmount));
}
