/// <summary>
/// Create the <see cref="MatrixCell"/> controls. Also instantiate the item template if it exists
/// </summary>
/// <param name="e"></param>
protected override void OnInit(EventArgs e)
{
MatrixField mf = (MatrixField)this.ContainingField;
foreach (var dc in mf.DisplayColumns)
{
MatrixCell mc = new MatrixCell(dc);
mc.MergeStyle(this.ContainingField.ItemStyle);
this.Controls.Add(mc);
}
mf.DisplayColumns.CollectionChanged += DisplayColumns_CollectionChanged;
base.OnInit(e);
}
private void DoRenderSubtotals(MatrixCell mc, int firstRowIndex, int lastRowIndex)
{
GridView gv = (GridView)this.NamingContainer.NamingContainer;
decimal?[] subtotals = new decimal?[mc.CellValues.Length];
IEnumerable <object[]> query = gv.Rows.Cast <GridViewRow>()
.Skip(firstRowIndex).Take(lastRowIndex - firstRowIndex + 1)
.SelectMany(p => p.Cells.OfType <MatrixRow>())
.SelectMany(p => p.MatrixCells)
.Where(p => object.ReferenceEquals(p.DisplayColumn, mc.DisplayColumn))
.Select(p => p.CellValues);
/*
* foreach (int i in _mf.DataCellFields
* .Select((p, i) => _colTotalindexes.Contains(i) ? i : -1)
* .Where(p => p >= 0))
* {
* if (values[i] != DBNull.Value)
* {
* _columnTotals[i] = (_columnTotals[i] ?? 0) + Convert.ToDecimal(values[i]);
* }
*
* }
*/
MatrixField mf = (MatrixField)this.ContainingField;
foreach (var values in query)
{
if (values != null)
{
foreach (int i in mf.DataCellFields
.Select((p, i) => mc.DisplayColumn.FieldsToTotal.Contains(i) ? i : -1)
.Where(p => p >= 0))
{
if (values[i] != DBNull.Value)
{
subtotals[i] = (subtotals[i] ?? 0) + Convert.ToDecimal(values[i]);
}
}
//for (int i = 0; i < subtotals.Length; ++i)
//{
// if (values[i] != DBNull.Value)
// {
// subtotals[i] = (subtotals[i] ?? 0) + Convert.ToDecimal(values[i]);
// }
//}
}
}
mc.Text = string.Format(mc.DisplayColumn.MatrixColumn.ColumnTotalFormatString, subtotals.Cast <object>().ToArray());
}
/// <summary>
/// Create a <see cref="MatrixCell"/> for each <see cref="MatrixDisplayColumn"/> which is added after <see cref="OnInit"/>
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DisplayColumns_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (MatrixDisplayColumn dc in e.NewItems.Cast <MatrixDisplayColumn>())
{
MatrixCell cell = new MatrixCell(dc);
this.Controls.Add(cell);
}
break;
default:
throw new NotImplementedException();
}
}