public object Evaluate(Report rpt, Row row)
{
object v = null;
if (row == null)
{
return(null);
}
bool bSave = true;
RowEnumerable re = this.GetDataScope(rpt, row, out bSave);
if (re == null)
{
return(null);
}
Row crow = null;
foreach (Row r in re)
{
if (r == row)
{
break;
}
crow = r;
}
if (crow != null)
{
v = _Expr.Evaluate(rpt, crow);
}
return(v);
}
public object Evaluate(Report rpt, Row row)
{
bool bSave = true;
RowEnumerable re = this.GetDataScope(rpt, row, out bSave);
if (re == null)
{
return(null);
}
object v = GetValue(rpt);
if (v == null)
{
Row saver = null;
if (re.Data.Count > 0)
{
saver = re.Data[re.LastRow] as Row;
}
foreach (Row r in re) // loop thru to end
{
saver = r;
}
v = _Expr.Evaluate(rpt, saver);
if (bSave)
{
SetValue(rpt, v);
}
}
return(v);
}
// Evaluate is for interpretation (and is relatively slow)
public object Evaluate(Report rpt, Row row)
{
bool bSave = true;
RowEnumerable re = this.GetDataScope(rpt, row, out bSave);
if (re == null)
{
return(null);
}
object v = GetValue(rpt);
if (v == null)
{
object temp;
ArrayList ar = new ArrayList(Math.Max(1, re.LastRow - re.FirstRow + 1));
foreach (Row r in re)
{
temp = _Expr.Evaluate(rpt, r);
ar.Add(temp);
}
v = ar;
if (bSave)
{
SetValue(rpt, v);
}
}
return(v);
}
public int EvaluateInt32(Report rpt, Row row)
{
bool bSave = true;
RowEnumerable re = this.GetDataScope(rpt, row, out bSave);
if (re == null)
{
return(0);
}
int count = re.LastRow - re.FirstRow + 1;
return(count);
}
public int EvaluateInt32(Report rpt, Row row)
{
bool bSave = true;
RowEnumerable re = this.GetDataScope(rpt, row, out bSave);
if (re == null)
{
return(0);
}
int v = GetValue(rpt);
if (v < 0)
{
object temp;
int count = Math.Max(2, re.LastRow - re.FirstRow);
Hashtable ht = new Hashtable(count);
foreach (Row r in re)
{
temp = _Expr.Evaluate(rpt, r);
if (temp != null)
{
object o = ht[temp]; // search for it
if (o == null) // if not found; add it to the hash table
{
ht.Add(temp, temp);
}
}
}
v = ht.Count;
if (bSave)
{
SetValue(rpt, v);
}
}
return(v);
}
public RowEnumerator(RowEnumerable rea)
{
re = rea;
}
// return an IEnumerable that represents the scope of the data
protected RowEnumerable GetDataScope(Report rpt, Row row, out bool bSave)
{
bSave = true;
RowEnumerable re = null;
if (this._Scope != null)
{
Type t = this._Scope.GetType();
//150208AJM GJL Trying - And Succeeding!!! to get data from chart
if (t == typeof(Chart))
{
Chart c = (Chart)this._Scope;
this._Scope = c.ChartMatrix;
t = this._Scope.GetType();
}
if (t == typeof(Grouping))
{
bSave = false;
Grouping g = (Grouping)(this._Scope);
if (g.InMatrix)
{
Rows rows = g.GetRows(rpt);
if (rows == null)
{
return(null);
}
re = new RowEnumerable(0, rows.Data.Count - 1, rows.Data, _LevelCheck);
}
else
{
if (row == null || row.R.CurrentGroups == null) // currentGroups can be null when reference Textbox in header/footer that has a scoped aggr function reference (TODO: this is a problem!)
{
return(null);
}
GroupEntry ge = row.R.CurrentGroups[g.GetIndex(rpt)];
re = new RowEnumerable(ge.StartRow, ge.EndRow, row.R.Data, _LevelCheck);
}
}
else if (t == typeof(Matrix))
{
bSave = false;
Matrix m = (Matrix)(this._Scope);
Rows mData = m.GetMyData(rpt);
re = new RowEnumerable(0, mData.Data.Count - 1, mData.Data, false);
}
else if (t == typeof(string))
{ // happens on page header/footer scope
if (row != null)
{
re = new RowEnumerable(0, row.R.Data.Count - 1, row.R.Data, false);
}
bSave = false;
}
else if (row != null)
{
re = new RowEnumerable(0, row.R.Data.Count - 1, row.R.Data, false);
}
else
{
DataSetDefn ds = this._Scope as DataSetDefn;
if (ds != null && ds.Query != null)
{
Rows rows = ds.Query.GetMyData(rpt);
if (rows != null)
{
re = new RowEnumerable(0, rows.Data.Count - 1, rows.Data, false);
}
}
}
}
else if (row != null)
{
re = new RowEnumerable(0, row.R.Data.Count - 1, row.R.Data, false);
}
return(re);
}