public static SelectionRangePoint TryCreateFromCurrent(DataGridContext dataGridContext)
{
if (dataGridContext == null)
{
return(null);
}
var dataGridControl = dataGridContext.DataGridControl;
if (dataGridControl == null)
{
return(null);
}
var column = dataGridContext.CurrentColumn;
int columnIndex = (column != null) ? column.VisiblePosition : -1;
var oldPosition = SelectionRangePoint.TryCreateRangePoint(dataGridContext, dataGridContext.CurrentItem, dataGridContext.CurrentItemIndex, columnIndex);
if (oldPosition == null)
{
oldPosition = SelectionRangePoint.TryCreateRangePoint(dataGridContext, dataGridContext.InternalCurrentItem, -1, columnIndex);
}
return(oldPosition);
}
public SelectionRangePoint CreateCopy()
{
var copy = new SelectionRangePoint();
copy.m_globalIndex = this.m_globalIndex;
copy.m_localIndex = this.m_localIndex;
copy.Item = this.Item;
copy.ColumnIndex = this.ColumnIndex;
copy.DataGridContext = this.DataGridContext;
return(copy);
}
public static SelectionRangePoint TryCreateRangePoint(DataGridContext dataGridContext, object item, int itemIndex, int columnIndex)
{
if ((dataGridContext == null) || (item == null))
{
return(null);
}
if (!(item is GroupHeaderFooterItem))
{
return(new SelectionRangePoint(dataGridContext, item, itemIndex, columnIndex));
}
var dataGridControl = dataGridContext.DataGridControl;
if ((dataGridControl == null))
{
return(null);
}
var group = dataGridContext.GetGroupFromCollectionViewGroup((( GroupHeaderFooterItem )item).Group);
return(SelectionRangePoint.TryCreateRangePoint(group));
}
