public DataView FilterDataTable(BE_Extend paramBE_Extend, DataTable paramDataTable, GridElement Element)
{
DataTable ds = GetFilterTable(paramBE_Extend, paramDataTable, Element, true);
DataTable paramData = (ds != null ? ds : paramDataTable);
DataTable result = GetFilterTable(paramBE_Extend, paramData, Element, false);
return(result.DefaultView);
}
private DataTable GetFilterTable(BE_Extend paramBE_Extend, DataTable paramDataTable, GridElement Element, Boolean IsLeftParent)
{
if (paramBE_Extend == null)
{
return(new DataTable());
}
else
{
List <DataTable> ParentDataTable = new List <DataTable>();
List <DataTable> SubDataTable = new List <DataTable>();
List <String> ParentPrimaryColumns = new List <string>();
List <String> ChildPrimaryColumns = new List <string>();
Dictionary <String, List <String> > RowFilters = new Dictionary <string, List <string> >();
ReportCommon.DataColumn DataColumn = Element.Value as ReportCommon.DataColumn;
GridElement ChildElement = Element;
ReportCommon.DataColumn ChildColumn = ChildElement.Value as ReportCommon.DataColumn;
PE paramPE = paramBE_Extend;
while (paramPE != null)
{
GridElement ParentElement = null;
ReportCommon.DataColumn ParentColumn = null;
if (paramPE is BE_Extend)
{
BE_Extend temp = paramPE as BE_Extend;
ParentElement = temp.beb.ce_from as GridElement;
ParentColumn = ParentElement.Value as ReportCommon.DataColumn;
}
else if (paramPE is CE_Extend)
{
CE_Extend temp = paramPE as CE_Extend;
ParentElement = temp.be_from.beb.ce_from as GridElement;
ParentColumn = ParentElement.Value as ReportCommon.DataColumn;
}
if (ParentElement == null || ParentColumn == null)
{
break;
}
if (IsLeftParent)
{
if (Element.ExpandOrientation.Orientation == ExpandOrientation.TopToBottom &&
ParentElement.ExpandOrientation.Orientation == ExpandOrientation.LeftToRight)
{
break;
}
}
else
{
if (Element.ExpandOrientation.Orientation == ExpandOrientation.LeftToRight &&
ParentElement.ExpandOrientation.Orientation == ExpandOrientation.TopToBottom)
{
break;
}
}
if (!RowFilters.ContainsKey(ParentColumn.TableName.ToLower()))
{
RowFilters.Add(ParentColumn.TableName.ToLower(), new List <String>());
}
DataTable ds = (ParentColumn.TableName.ToLower() == paramDataTable.TableName.ToLower() ? paramDataTable : dataSources[ParentColumn.TableName.ToLower()]);
ParentDataTable.Add(ds);
String strFilter = "";
if (paramPE is CE_Extend)
{
CE_Extend temp = paramPE as CE_Extend;
strFilter = GetField_ValueString(ds, ParentColumn.FieldName, CompareOperation.等于, temp.obj);
}
RowFilters[ParentColumn.TableName.ToLower()].Add(strFilter);
DataTable subds = (ChildColumn.TableName.ToLower() == paramDataTable.TableName.ToLower() ? paramDataTable : dataSources[ChildColumn.TableName.ToLower()]);
SubDataTable.Add(subds);
List <FilterCondition> FilterConditions = ChildColumn.DataFilter.FilterConditions;
Boolean HaveRelation = true;
foreach (FilterCondition FilterCondition in FilterConditions)
{
String str;
Item Item = FilterCondition.RightItem;
switch (Item.Style)
{
case FilterStyle.DataColumn:
ChildPrimaryColumns.Add(FilterCondition.LeftItem.FieldName);
ParentPrimaryColumns.Add(FilterCondition.RightItem.FieldName);
break;
case FilterStyle.Value:
str = GetField_ValueString(subds, FilterCondition.LeftItem.FieldName, FilterCondition.CompareOperation, Item.Value);
RowFilters[ChildColumn.TableName.ToLower()].Add(str);
break;
case FilterStyle.Parameter:
ReportParameter param = parameterList[Item.ParameterName] as ReportParameter;
str = GetField_ValueString(subds, FilterCondition.LeftItem.FieldName, FilterCondition.CompareOperation, param.Value);
RowFilters[ChildColumn.TableName.ToLower()].Add(str);
break;
}
HaveRelation = HaveRelation && Item.Style == FilterStyle.DataColumn;
}
if (!HaveRelation || ChildColumn.DataFilter.FilterConditions.Count == 0)
{
ChildPrimaryColumns.Add("");
ParentPrimaryColumns.Add("");
}
ChildElement = ParentElement;
ChildColumn = ChildElement.Value as ReportCommon.DataColumn;
if (paramPE is BE_Extend)
{
BE_Extend temp = paramPE as BE_Extend;
paramPE = (IsLeftParent ? temp.left : temp.up);
}
else if (paramPE is CE_Extend)
{
CE_Extend temp = paramPE as CE_Extend;
paramPE = (IsLeftParent ? temp.be_from.left : temp.be_from.up);
}
}
if (ParentDataTable.Count > 0)
{
DataTable TemTable = ParentDataTable[ParentDataTable.Count - 1];
for (int i = ParentDataTable.Count - 1; i >= 0; i--)
{
List <String> Filters = RowFilters[TemTable.TableName.ToLower()];
List <String> temp = new List <string>();
foreach (String str in Filters)
{
if (str != "")
{
temp.Add(str);
}
}
String strFilters = "";
if (temp.Count > 0)
{
strFilters = string.Join(" and ", temp.ToArray());
}
TemTable = GetRelationTable(TemTable, SubDataTable[i], ParentPrimaryColumns[i], ChildPrimaryColumns[i], strFilters);
}
DataTable Result = TemTable.DefaultView.ToTable();
return(Result);
}
else
{
DataTable Result = dataSources[DataColumn.TableName.ToLower()].DefaultView.ToTable();
return(Result);
}
}
}
