/// <summary>
/// Gets the measured length of layout grid track.
/// </summary>
/// <param name="gridTrack">The layout grid track.</param>
/// <returns>the measured length.</returns>
public double?GetMeasuredLength(GridTrack gridTrack)
{
gridTrack.VerifyNotNull(nameof(gridTrack));
if (!gridTrack.IsContainer)
{
throw new ArgumentException(DiagnosticMessages.RowPresenter_Resize_InvalidGridTrack, nameof(gridTrack));
}
if (IsDisposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
var scrollableManager = ScrollableManager;
if (scrollableManager == null || Template.FlowRepeatCount != 1)
{
throw new InvalidOperationException(DiagnosticMessages.RowPresenter_Resize_NotAllowed);
}
var rowView = View;
if (rowView == null)
{
return(null);
}
var containerView = scrollableManager[rowView.ContainerOrdinal];
return(scrollableManager.GetMeasuredLength(containerView, gridTrack));
}
/// <summary>
/// Resizes the layout grid track.
/// </summary>
/// <param name="gridTrack">The layout grid track.</param>
/// <param name="length">The resized length.</param>
public void Resize(GridTrack gridTrack, GridLength length)
{
gridTrack.VerifyNotNull(nameof(gridTrack));
if (!gridTrack.IsContainer)
{
throw new ArgumentException(DiagnosticMessages.RowPresenter_Resize_InvalidGridTrack, nameof(gridTrack));
}
if (length.IsStar)
{
throw new ArgumentException(DiagnosticMessages.RowPresenter_Resize_InvalidStarLength, nameof(length));
}
if (IsDisposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
var scrollableManager = ScrollableManager;
if (scrollableManager == null || Template.FlowRepeatCount != 1)
{
throw new InvalidOperationException(DiagnosticMessages.RowPresenter_Resize_NotAllowed);
}
scrollableManager.Resize(this, gridTrack, length);
}