C# RDL.Grouping类代码示例

		List<GroupEntry> _NestedGroup;	// group one hierarchy below
	
		internal GroupEntry(Grouping g, Sorting s, int start)
		{
			_Group = g;
			_Sort = s;
			_StartRow = start;
			_EndRow = -1;
            _NestedGroup = new List<GroupEntry>();

			// Check to see if grouping and sorting are the same
			if (g == null || s == null)
				return;			// nothing to check if either is null

			if (s.Items.Count != g.GroupExpressions.Items.Count)
				return;

			for (int i = 0; i < s.Items.Count; i++)
			{
				SortBy sb = s.Items[i] as SortBy;

				if (sb.Direction == SortDirectionEnum.Descending)
					return;			// TODO we could optimize this 
				
				FunctionField ff = sb.SortExpression.Expr as FunctionField;
				if (ff == null || ff.GetTypeCode() != TypeCode.String)
					return;

				GroupExpression ge = g.GroupExpressions.Items[i] as GroupExpression;
				FunctionField ff2 = ge.Expression.Expr as FunctionField;
				if (ff2 == null || ff.Fld != ff2.Fld)
					return;
			}
			_Sort = null;		// we won't need to sort since the groupby will handle it correctly
		}

		Expression _Label;	// (string) The label displayed on the legend.		
	
		internal DynamicSeries(ReportDefn r, ReportLink p, XmlNode xNode) : base(r, p)
		{
			_Grouping=null;
			_Sorting=null;
			_Label=null;

			// Loop thru all the child nodes
			foreach(XmlNode xNodeLoop in xNode.ChildNodes)
			{
				if (xNodeLoop.NodeType != XmlNodeType.Element)
					continue;
				switch (xNodeLoop.Name)
				{
					case "Grouping":
						_Grouping = new Grouping(r, this, xNodeLoop);
						break;
					case "Sorting":
						_Sorting = new Sorting(r, this, xNodeLoop);
						break;
					case "Label":
						_Label = new Expression(r, this, xNodeLoop, ExpressionType.String);
						break;
					default:
						break;
				}
			}
			if (_Grouping == null)
				OwnerReport.rl.LogError(8, "DynamicSeries requires the Grouping element.");
			if (_Label == null)
				OwnerReport.rl.LogError(8, "DynamicSeries requires the Label element.");
		}

		string _ExprName;			// name of the expression; this isn't always set

		internal NameLookup(IDictionary f, IDictionary p, IDictionary r, 
			IDictionary gbl, IDictionary u, IDictionary ascope, 
			Grouping ag, Matrix mt, CodeModules cm, Classes i, DataSetsDefn ds, Type ct)
		{
			fields=f;
			parameters=p;
			reportitems=r;
			globals=gbl;
			user=u;
			aggrScope = ascope;
			g=ag;
			m = mt;
			cms = cm;
			instances = i;
			dsets = ds;
			codeType = ct;
		}

		Visibility _Visibility;	// Indicates if all of the dynamic rows for this grouping
							// should be hidden and replaced with a subtotal row for
							// this grouping scope		

		internal DynamicRows(ReportDefn r, ReportLink p, XmlNode xNode) : base(r, p)
		{
			_Grouping=null;
			_Sorting=null;
			_Subtotal=null;
			_ReportItems=null;
			_Visibility=null;
			// Run thru the attributes
			//			foreach(XmlAttribute xAttr in xNode.Attributes)
			//			{
			//			}

			// Loop thru all the child nodes
			foreach(XmlNode xNodeLoop in xNode.ChildNodes)
			{
				if (xNodeLoop.NodeType != XmlNodeType.Element)
					continue;
				switch (xNodeLoop.Name)
				{
					case "Grouping":
						_Grouping = new Grouping(r, this, xNodeLoop);
						break;
					case "Sorting":
						_Sorting = new Sorting(r, this, xNodeLoop);
						break;
					case "Subtotal":
						_Subtotal = new Subtotal(r, this, xNodeLoop);
						break;
					case "ReportItems":
						_ReportItems = new ReportItems(r, this, xNodeLoop);
						break;
					case "Visibility":
						_Visibility = new Visibility(r, this, xNodeLoop);
						break;
					default:	
						// don't know this element - log it
						OwnerReport.rl.LogError(4, "Unknown DynamicRow element '" + xNodeLoop.Name + "' ignored.");
						break;
				}
			}
			if (_Grouping == null)
				OwnerReport.rl.LogError(8, "DynamicRows requires the Grouping element.");
			if (_ReportItems == null || _ReportItems.Items.Count != 1)
				OwnerReport.rl.LogError(8, "DynamicRows requires the ReportItems element defined with exactly one report item.");
		}

        Visibility _Visibility; // Indicates if the group (and all groups embedded

        #endregion Fields

        #region Constructors

        internal TableGroup(ReportDefn r, ReportLink p, XmlNode xNode)
            : base(r, p)
        {
            _Grouping=null;
            _Sorting=null;
            _Header=null;
            _Footer=null;
            _Visibility=null;
            _ToggleTextbox=null;

            // Loop thru all the child nodes
            foreach(XmlNode xNodeLoop in xNode.ChildNodes)
            {
                if (xNodeLoop.NodeType != XmlNodeType.Element)
                    continue;
                switch (xNodeLoop.Name)
                {
                    case "Grouping":
                        _Grouping = new Grouping(r, this, xNodeLoop);
                        break;
                    case "Sorting":
                        _Sorting = new Sorting(r, this, xNodeLoop);
                        break;
                    case "Header":
                        _Header = new Header(r, this, xNodeLoop);
                        break;
                    case "Footer":
                        _Footer = new Footer(r, this, xNodeLoop);
                        break;
                    case "Visibility":
                        _Visibility = new Visibility(r, this, xNodeLoop);
                        break;
                    default:
                        // don't know this element - log it
                        OwnerReport.rl.LogError(4, "Unknown TableGroup element '" + xNodeLoop.Name + "' ignored.");
                        break;
                }
            }
            if (_Grouping == null)
                OwnerReport.rl.LogError(8, "TableGroup requires the Grouping element.");
        }

        Sorting _Sorting; // The expressions to sort the repeated list regions by

        #endregion Fields

        #region Constructors

        internal List(ReportDefn r, ReportLink p, XmlNode xNode)
            : base(r,p,xNode)
        {
            _Grouping=null;
            _Sorting=null;
            _ReportItems=null;
            _DataInstanceName="Item";
            _DataInstanceElementOutput=DataInstanceElementOutputEnum.Output;

            // Loop thru all the child nodes
            foreach(XmlNode xNodeLoop in xNode.ChildNodes)
            {
                if (xNodeLoop.NodeType != XmlNodeType.Element)
                    continue;
                switch (xNodeLoop.Name)
                {
                    case "Grouping":
                        _Grouping = new Grouping(r, this, xNodeLoop);
                        break;
                    case "Sorting":
                        _Sorting = new Sorting(r, this, xNodeLoop);
                        break;
                    case "ReportItems":
                        _ReportItems = new ReportItems(r, this, xNodeLoop);
                        break;
                    case "DataInstanceName":
                        _DataInstanceName = xNodeLoop.InnerText;
                        break;
                    case "DataInstanceElementOutput":
                        _DataInstanceElementOutput = fyiReporting.RDL.DataInstanceElementOutput.GetStyle(xNodeLoop.InnerText, OwnerReport.rl);
                        break;
                    default:
                        if (DataRegionElement(xNodeLoop))	// try at DataRegion level
                            break;
                        // don't know this element - log it
                        OwnerReport.rl.LogError(4, "Unknown List element '" + xNodeLoop.Name + "' ignored.");
                        break;
                }
            }
            DataRegionFinish();			// Tidy up the DataRegion
        }

        Visibility _Visibility; // Indicates if the details should be hidden

        #endregion Fields

        #region Constructors

        internal Details(ReportDefn r, ReportLink p, XmlNode xNode)
            : base(r, p)
        {
            _TableRows=null;
            _Grouping=null;
            _Sorting=null;
            _Visibility=null;
            _ToggleTextbox = null;

            // Loop thru all the child nodes
            foreach(XmlNode xNodeLoop in xNode.ChildNodes)
            {
                if (xNodeLoop.NodeType != XmlNodeType.Element)
                    continue;
                switch (xNodeLoop.Name)
                {
                    case "TableRows":
                        _TableRows = new TableRows(r, this, xNodeLoop);
                        break;
                    case "Grouping":
                        _Grouping = new Grouping(r, this, xNodeLoop);
                        break;
                    case "Sorting":
                        _Sorting = new Sorting(r, this, xNodeLoop);
                        break;
                    case "Visibility":
                        _Visibility = new Visibility(r, this, xNodeLoop);
                        break;
                    default:
                        // don't know this element - log it
                        OwnerReport.rl.LogError(4, "Unknown Details element " + xNodeLoop.Name + " ignored.");
                        break;
                }
            }
            if (_TableRows == null)
                OwnerReport.rl.LogError(8, "Details requires the TableRows element.");
        }

 // called at start for each grouping instance
 public virtual void GroupingInstanceStart(Grouping g)
 {
 }

 // called at end of grouping
 public void GroupingEnd(Grouping g)
 {
     if (g.DataElementOutput != DataElementOutputEnum.Output)
         return;
     PopContainer(g.DataCollectionName);
 }

 // called at start for each grouping instance
 public void GroupingInstanceStart(Grouping g)
 {
     if (g.DataElementOutput != DataElementOutputEnum.Output)
         return;
     PushContainer(g.DataElementName);
 }

 public void GroupingEnd(Grouping g)			// called at end of grouping
 {
 }

 public void GroupingInstanceEnd(Grouping g)	// called at start for each grouping instance
 {
 }

 public void GroupingStart(Grouping g)			// called at start of grouping
 {
 }

 // called at start for each grouping instance
 public virtual void GroupingInstanceEnd(Grouping g)
 {
 }

 // called at start for each grouping instance
 public void GroupingInstanceStart(Grouping g)
 {
 }