public object this[int index]
{
get
{
if ((index < 0) || (index >= m_list.ItemsCount))
{
throw new ArgumentOutOfRangeException("index", "The index must be equal or greater than zero and less than Count.");
}
int oldIndexOffset = 0;
int indexOffset = 0;
int count = m_list.Count;
for (int i = 0; i < count; i++)
{
SelectionRangeWithItems rangeWithItems = m_list[i];
indexOffset += rangeWithItems.Length;
if (index < indexOffset)
{
return(rangeWithItems.GetItem(m_list.DataGridContext, index - oldIndexOffset));
}
oldIndexOffset = indexOffset;
}
throw new ArgumentOutOfRangeException("index", "The index must be less than Count.");
}
set
{
throw new NotSupportedException();
}
}
public void CopyTo(object[] array, int arrayIndex)
{
DataGridContext dataGridContext = m_list.DataGridContext;
int count = m_list.Count;
for (int i = 0; i < count; i++)
{
SelectionRangeWithItems rangeWithItems = m_list[i];
int rangeLength = rangeWithItems.Length;
for (int j = 0; j < rangeLength; j++)
{
array[arrayIndex] = rangeWithItems.GetItem(dataGridContext, j);
arrayIndex++;
}
}
}
void ICollection.CopyTo(Array array, int arrayIndex)
{
DataGridContext dataGridContext = m_list.DataGridContext;
int count = m_list.Count;
for (int i = 0; i < count; i++)
{
SelectionRangeWithItems rangeWithItems = m_list[i];
int rangeLength = rangeWithItems.Length;
for (int j = 0; j < rangeLength; j++)
{
array.SetValue(rangeWithItems.GetItem(dataGridContext, j), arrayIndex);
arrayIndex++;
}
}
}
public void RemoveAt(int index)
{
if ((index < 0) || (index >= m_list.ItemsCount))
{
throw new ArgumentOutOfRangeException("index", index, "index must be greater than or equal to zero and less than Count.");
}
int oldIndexOffset = 0;
int indexOffset = 0;
int count = m_list.Count;
SelectionRangeWithItems rangeWithItemsFound = SelectionRangeWithItems.Empty;
for (int i = 0; i < count; i++)
{
SelectionRangeWithItems rangeWithItems = m_list[i];
indexOffset += rangeWithItems.Length;
if (index < indexOffset)
{
rangeWithItemsFound = rangeWithItems; // .GetItem( dataGridContext, index - oldIndexOffset );
break;
}
oldIndexOffset = indexOffset;
}
if (!rangeWithItemsFound.IsEmpty)
{
DataGridContext dataGridContext = m_list.DataGridContext;
SelectionManager selectionManager = dataGridContext.DataGridControl.SelectionChangerManager;
selectionManager.Begin();
try
{
selectionManager.UnselectItems(dataGridContext,
new SelectionRangeWithItems(
rangeWithItemsFound.Range.GetIndexFromItemOffset(index - oldIndexOffset),
rangeWithItemsFound.GetItem(dataGridContext, index - oldIndexOffset)));
}
finally
{
selectionManager.End(false, true, true);
}
}
}
