public override bool Equals(object obj)
{
GroupNamesTreeKey groupStatusKey = obj as GroupNamesTreeKey;
if (groupStatusKey == null)
{
return(false);
}
if (m_cachedHash != groupStatusKey.m_cachedHash)
{
return(false);
}
int groupStatusKeyNamesTreeLength = groupStatusKey.m_namesTree.Length;
if (m_namesTree.Length != groupStatusKeyNamesTreeLength)
{
return(false);
}
for (int i = 0; i < groupStatusKeyNamesTreeLength; i++)
{
if (!Object.Equals(m_namesTree[i], groupStatusKey.m_namesTree[i]))
{
return(false);
}
}
return(true);
}
protected override void RestoringVisit(DataGridContext sourceContext, CollectionViewGroup group, object[] namesTree, int groupLevel, bool isExpanded, bool isComputedExpanded)
{
if (sourceContext != m_rootDataGridContext)
{
throw new InvalidOperationException("Group does not belong to the root DataGridContext.");
}
if (groupLevel > m_maxGroupLevel)
{
return;
}
GroupNamesTreeKey groupNamesTreeKey = new GroupNamesTreeKey(namesTree);
bool wasExpanded;
if (m_groupsStateDictionary.TryGetValue(groupNamesTreeKey, out wasExpanded))
{
if (wasExpanded)
{
sourceContext.ExpandGroupCore(group, true);
}
else
{
sourceContext.CollapseGroupCore(group, true);
}
}
else if (m_stopAtFirstCollapsedGroup)
{
sourceContext.CollapseGroupCore(group, true);
}
}
public void Visit(DataGridContext sourceContext, System.Windows.Data.CollectionViewGroup group, object[] namesTree, int groupLevel, bool isExpanded, bool isComputedExpanded, ref bool stopVisit)
{
if (this.Group == null)
{
GroupNamesTreeKey currentGroupKey = new GroupNamesTreeKey(namesTree);
if (currentGroupKey.Equals(m_groupNamesTreeKey) == true)
{
this.Group = group;
}
}
}
public NamesTreeGroupFinderVisitor(object[] namesTree)
{
if (namesTree == null)
{
throw new ArgumentNullException("namesTree");
}
if (namesTree.Length == 0)
{
throw new ArgumentException("namesTree should not be an empty array", "namesTree");
}
m_groupNamesTreeKey = new GroupNamesTreeKey(namesTree);
}
protected override void SavingVisit(DataGridContext sourceContext, CollectionViewGroup group, object[] namesTree, int groupLevel, bool isExpanded, bool isComputedExpanded)
{
if (sourceContext != m_rootDataGridContext)
{
throw new InvalidOperationException("Group does not belong to the root DataGridContext.");
}
if (groupLevel > m_maxGroupLevel)
{
return;
}
if ((m_stopAtFirstCollapsedGroup) && (!isComputedExpanded))
{
return;
}
GroupNamesTreeKey groupNamesTreeKey = new GroupNamesTreeKey(namesTree);
m_groupsStateDictionary.Add(groupNamesTreeKey, isExpanded);
}
