private string GetFormattedValue(DataContext dataContext)
{
if (Format == null)
{
return(null);
}
String f;
String[] pn;
StringFormatHelper.PrepareFormatWithNames(Format, out f, out pn);
if (pn == null)
{
return(f);
}
object[] pv = pn.Select(a => dataContext.GetParameterValue(a)).ToArray();
return(String.Format(f, pv));
}
public override void Render(Report report, Flow fm, DataContext dataContext)
{
HashSet <String> fieldNames = new HashSet <string>();
foreach (var c in Columns)
{
if (c.DataField != "#")
{
fieldNames.Add(c.DataField);
}
if (c.AggregateWeightDataField != null)
{
fieldNames.Add(c.AggregateWeightDataField);
}
}
foreach (var g in Groups)
{
foreach (var sc in g.GroupByColumns)
{
fieldNames.Add(sc.DataField);
}
}
var data = dataContext.CreateTable(DataTable, fieldNames.ToArray());
for (int i = 0; i < Columns.Length; i++)
{
Columns[i]._Index = i;
Columns[i]._DataFieldIndex = data.GetColumnIndex(Columns[i].DataField);
if (Columns[i].AggregateWeightDataField != null)
{
Columns[i]._AggregateWeightDataFieldIndex = data.GetColumnIndex(Columns[i].AggregateWeightDataField);
if (Columns[i]._AggregateWeightDataFieldIndex == -1)
{
throw new InvalidOperationException(String.Format("Weight column '{0}' not found.", Columns[i].AggregateWeightDataField));
}
}
}
List <SortColumn> sort = new List <SortColumn>();
List <GroupData> groupData = new List <GroupData>();
int gi = 0;
if (Groups != null)
{
foreach (var g in Groups)
{
var gd = new GroupData();
var gc = new List <SortColumn>();
if (g.GroupByColumns != null)
{
foreach (var c in g.GroupByColumns)
{
var ci = data.GetColumnIndex(c.DataField);
if (ci != -1)
{
gc.Add(new SortColumn
{
ColumnIndex = ci,
SortDirection = c.SortDirection == SortDirection.None ? SortDirection.Ascending : c.SortDirection
});
}
}
}
gd.Columns = gc.ToArray();
sort.AddRange(gd.Columns);
gd.GroupIndex = gi++;
gd.Group = g;
if (g.CaptionFormat != null)
{
String[] names;
String format;
StringFormatHelper.PrepareFormatWithNames(g.CaptionFormat, out format, out names);
gd.PreparedCaptionFormat = format;
gd.PreparedCaptionColumns = names != null?names.Select(a => data.GetColumnIndex(a)).ToArray() : null;
}
if (g.FooterFormat != null)
{
String[] names;
String format;
StringFormatHelper.PrepareFormatWithNames(g.FooterFormat, out format, out names);
gd.PreparedFooterFormat = format;
gd.PreparedFooterColumns = names != null?names.Select(a => data.GetColumnIndex(a)).ToArray() : null;
}
gd.GroupLevel = Groups.Length - gd.GroupIndex - 1;
gd.GroupOpen = false;
groupData.Add(gd);
}
}
sort.AddRange(from c in Columns
where c.SortDirection != SortDirection.None
orderby c.SortIndex
select new SortColumn
{
ColumnIndex = c._DataFieldIndex,
SortDirection = c.SortDirection
});
if (sort.Count != 0)
{
data.Sort(sort.ToArray());
}
var rows = data.Rows;
var rect = fm.GetRect(Position, Columns.Length, 0);
var pos = new RowCol {
Col = rect.Col1, Row = rect.Row1
};
var startRow = pos.Row;
List <Cell> cells = new List <Cell>();
object[] accumulator = new object[Columns.Length];
decimal[] count = new decimal[Columns.Length];
CellAlignment[] align = new CellAlignment[Columns.Length];
for (int c = 0; c < Columns.Length; c++)
{
var th = Columns[c]._DataFieldIndex >= 0 ? data.TypeHelper[Columns[c]._DataFieldIndex] : null;
if (th != null)
{
switch (Columns[c].AggregateFunction)
{
case AggregateFunction.Sum:
accumulator[c] = th.Math.Zero;
break;
case AggregateFunction.Count:
accumulator[c] = 0;
break;
case AggregateFunction.Avg:
if (Columns[c].AggregateWeightDataField != null)
{
count[c] = 0;
accumulator[c] = 0m;
}
else
{
accumulator[c] = th.Math.Zero;
count[c] = 0;
}
break;
case AggregateFunction.Product:
accumulator[c] = th.Math.One;
break;
}
}
align[c] = th != null?CalcAlignment(Columns[c].CellAlignment, th) : CellAlignment.Right;
}
Data.Row prevRow = null;
for (int r = 0, rowIndex = 0; r <= rows.Length; r++, rowIndex++)
{
var row = r < rows.Length ? rows[r] : null;
var closeToGroupLevel = row != null ? groupData.Count : 0;
if (prevRow != null && row != null)
{
for (int g = 0; g < groupData.Count; g++)
{
if (RowComparer.Compare(row, prevRow, groupData[g].Columns) != 0)
{
closeToGroupLevel = g;
break;
}
}
}
//close higher groups first
for (int g = groupData.Count - 1; g >= closeToGroupLevel; g--)
{
var gd = groupData[g];
if (gd.GroupOpen)
{
gd.GroupOpen = false;
//close group
if (gd.Group.ShowFooter)
{
for (int c = 0; c < Columns.Length; c++)
{
if (Columns[c].AggregateFunction == AggregateFunction.Avg)
{
gd.GroupAccumulator[c] = CalculateAggregate(Columns[c].AggregateFunction, gd.GroupAccumulator[c], gd.GroupCounter[c]);
}
var style = gd.GetFooterCellStyle(Columns[c].ColumnType);
switch (Columns[c].FooterType)
{
case ColumnFooterType.FooterText:
cells.Add(new Cell {
Column = pos.Col + c, Row = pos.Row, FormattedValue = Columns[c].FooterText, Value = Columns[c].FooterText, CellStyleIndex = style, Alignment = Columns[c].FooterAlignment
});
break;
case ColumnFooterType.AggregateValue:
String fv = (Columns[c].FooterFormat != null) ? String.Format(Columns[c].FooterFormat, gd.GroupAccumulator[c]) : (gd.GroupAccumulator[c] != null ? gd.GroupAccumulator[c].ToString() : null);
var al = Columns[c]._DataFieldIndex >= 0 ? CalcAlignment(Columns[c].FooterAlignment, data.TypeHelper[Columns[c]._DataFieldIndex]) : CellAlignment.Auto;
cells.Add(new Cell {
Column = pos.Col + c, Row = pos.Row, FormattedValue = fv, Value = gd.GroupAccumulator[c], CellStyleIndex = style, Alignment = al, Format = Columns[c].FooterFormat
});
break;
case ColumnFooterType.GroupFooter:
String gfv = gd.PreparedFooterColumns == null ? gd.PreparedFooterFormat : String.Format(gd.PreparedFooterFormat, prevRow.GetMany(gd.PreparedFooterColumns));
var gal = Columns[c]._DataFieldIndex >= 0 ? CalcAlignment(Columns[c].FooterAlignment, data.TypeHelper[Columns[c]._DataFieldIndex]) : CellAlignment.Auto;
cells.Add(new Cell {
Column = pos.Col + c, Row = pos.Row, FormattedValue = gfv, Value = gfv, CellStyleIndex = style, Alignment = gal
});
break;
}
if (Columns[c].FooterColSpan > 1)
{
report.MergedCells.Add(new Rect {
Col1 = pos.Col + c, Col2 = pos.Col + c + Columns[c].FooterColSpan - 1, Row1 = pos.Row, Row2 = pos.Row
});
c += Columns[c].FooterColSpan - 1;
}
}
pos.Row++;
}
}
}
for (int g = 0; g < groupData.Count; g++)
{
var gd = groupData[g];
//add row
if (row != null)
{
if (!gd.GroupOpen)
{
gd.GroupOpen = true;
rowIndex = 0;
if (gd.Group.ShowCaption)
{
String caption = gd.PreparedCaptionColumns == null ? gd.PreparedCaptionFormat : String.Format(gd.PreparedCaptionFormat, row.GetMany(gd.PreparedCaptionColumns));
cells.Add(new Cell {
Column = pos.Col, Row = pos.Row, FormattedValue = caption, Value = caption, CellStyleIndex = gd.GetCaptionStyle()
});
report.MergedCells.Add(new Rect {
Col1 = pos.Col, Col2 = pos.Col + Columns.Length - 1, Row1 = pos.Row, Row2 = pos.Row
});
pos.Row++;
}
if (gd.Group.ShowHeader)
{
for (int c = 0; c < Columns.Length; c++)
{
var ht = Columns[c].HeaderText;
var style = gd.GetHeaderCellStyle(Columns[c].ColumnType);
var a = Columns[c]._DataFieldIndex >= 0 ? CalcAlignment(Columns[c].HeaderAlignment, data.TypeHelper[Columns[c]._DataFieldIndex]) : CellAlignment.Right;
cells.Add(new Cell
{
Column = pos.Col + c,
Row = pos.Row,
FormattedValue = ht,
Value = ht,
CellStyleIndex = style,
Alignment = a
});
}
pos.Row++;
}
gd.GroupAccumulator = new object[Columns.Length];
gd.GroupCounter = new decimal[Columns.Length];
//reset group accumulator
for (int c = 0; c < Columns.Length; c++)
{
var th = Columns[c]._DataFieldIndex >= 0 ? data.TypeHelper[Columns[c]._DataFieldIndex] : null;
if (th != null)
{
switch (Columns[c].AggregateFunction)
{
case AggregateFunction.Sum:
gd.GroupAccumulator[c] = th.Math.Zero;
break;
case AggregateFunction.Count:
gd.GroupAccumulator[c] = 0;
break;
case AggregateFunction.Avg:
if (Columns[c].AggregateWeightDataField != null)
{
gd.GroupAccumulator[c] = 0m;
gd.GroupCounter[c] = 0;
}
else
{
gd.GroupAccumulator[c] = th.Math.Zero;
gd.GroupCounter[c] = 0;
}
break;
case AggregateFunction.Product:
gd.GroupAccumulator[c] = th.Math.One;
break;
}
}
}
}
for (int c = 0; c < Columns.Length; c++)
{
var dfi = Columns[c]._DataFieldIndex;
var v = row[dfi];
var th = dfi >= 0 ? data.TypeHelper[dfi] : null;
if (th != null)
{
switch (Columns[c].AggregateFunction)
{
case AggregateFunction.Sum:
gd.GroupAccumulator[c] = th.Math.SumNullAsZero(gd.GroupAccumulator[c], v);
break;
case AggregateFunction.Count:
if (v != null)
{
gd.GroupAccumulator[c] = (int)gd.GroupAccumulator[c] + 1;
}
break;
case AggregateFunction.Product:
gd.GroupAccumulator[c] = th.Math.Multiply(gd.GroupAccumulator[c], v);
break;
case AggregateFunction.Avg:
if (v != null)
{
if (Columns[c].AggregateWeightDataField != null)
{
var w = row[Columns[c]._AggregateWeightDataFieldIndex];
if (w != null)
{
var wd = Convert.ToDecimal(w);
var wv = wd * Convert.ToDecimal(v);
gd.GroupAccumulator[c] = (decimal)gd.GroupAccumulator[c] + wv;
gd.GroupCounter[c] += wd;
}
}
else
{
gd.GroupAccumulator[c] = th.Math.Sum(gd.GroupAccumulator[c], v);
++gd.GroupCounter[c];
}
}
break;
case AggregateFunction.Min:
if (gd.GroupAccumulator[c] == null)
{
gd.GroupAccumulator[c] = v;
}
else if (v != null)
{
gd.GroupAccumulator[c] = th.Math.Min(gd.GroupAccumulator[c], v);
}
break;
case AggregateFunction.Max:
if (gd.GroupAccumulator[c] == null)
{
gd.GroupAccumulator[c] = v;
}
else if (v != null)
{
gd.GroupAccumulator[c] = th.Math.Max(gd.GroupAccumulator[c], v);
}
break;
}
}
switch (Columns[c].CellDisplayMode)
{
default:
case CellDisplayMode.Normal:
v = Columns[c].DataField == "#" ? rowIndex + 1 : row[dfi];
break;
case CellDisplayMode.RowNumber:
v = rowIndex + 1;
break;
case CellDisplayMode.AccumulatorValue:
v = CalculateAggregate(Columns[c].AggregateFunction, gd.GroupAccumulator[c], gd.GroupCounter[c]);
break;
}
CellStyle addStyle = null;
if (Columns[c].ConditionalFormatting != null)
{
addStyle = Columns[c].ConditionalFormatting(v);
}
String fv = (Columns[c].Format != null) ? String.Format(Columns[c].Format, v) : (v != null ? v.ToString() : null);
if (g + 1 == groupData.Count)
{
cells.Add(new Cell
{
Column = pos.Col + c,
Row = pos.Row,
Value = v,
FormattedValue = fv,
CellStyleIndex = Columns[c].ColumnType == TableColumnType.HeaderColumn ? CellStyleIndex.TableRowHeader : Columns[c].ColumnType == TableColumnType.FooterColumn ? CellStyleIndex.TableRowFooter : CellStyleIndex.TableRow,
Alignment = align[c],
Format = Columns[c].Format,
CustomStyle = addStyle
});
}
}
if (g + 1 == groupData.Count)
{
pos.Row++;
}
}
}
prevRow = row;
}
fm.GetRect(RowCol.Zero, 0, pos.Row - startRow);
report.Cells.AddRange(cells);
}