C# List.ToArray方法代码示例

        private void HighlightString(Graphics g, PageText dtext, RectangleF r, Font f, StringFormat sf)
        {
            if (_HighlightText == null || _HighlightText.Length == 0)
                return;         // nothing to highlight
            bool bhighlightItem = dtext == _HighlightItem ||
                    (_HighlightItem != null && dtext.HtmlParent == _HighlightItem);
            if (!(_HighlightAll || bhighlightItem))
                return;         // not highlighting all and not on current highlight item

            string hlt = _HighlightCaseSensitive ? _HighlightText : _HighlightText.ToLower();
            string text = _HighlightCaseSensitive ? dtext.Text : dtext.Text.ToLower();

            if (text.IndexOf(hlt) < 0)
                return;         // string not in text

            StringFormat sf2 = null;
            try
            {
                // Create a CharacterRange array with the highlight location and length
                // Handle multiple occurences of text
                List<CharacterRange> rangel = new List<CharacterRange>();
                int loc = text.IndexOf(hlt);
                int hlen = hlt.Length;
                int len = text.Length;
                while (loc >= 0)
                {
                    rangel.Add(new CharacterRange(loc, hlen));
                    if (loc + hlen < len)  // out of range of text
                        loc = text.IndexOf(hlt, loc + hlen);
                    else
                        loc = -1;
                }

                if (rangel.Count <= 0)      // we should have gotten one; but
                    return;

                CharacterRange[] ranges = rangel.ToArray();

                // Construct a new StringFormat object.
                sf2 = sf.Clone() as StringFormat;

                // Set the ranges on the StringFormat object.
                sf2.SetMeasurableCharacterRanges(ranges);

                // Get the Regions to highlight by calling the
                // MeasureCharacterRanges method.
                if (r.Width <= 0 || r.Height <= 0)
                {
                    SizeF ts = g.MeasureString(dtext.Text, f);
                    r.Height = ts.Height;
                    r.Width = ts.Width;
                }
                Region[] charRegion = g.MeasureCharacterRanges(dtext.Text, f, r, sf2);

                // Fill in the region using a semi-transparent color to highlight
                foreach (Region rg in charRegion)
                {
                    Color hl = bhighlightItem ? _HighlightItemColor : _HighlightAllColor;
                    g.FillRegion(new SolidBrush(Color.FromArgb(50, hl)), rg);
                }
            }
            catch { }   // if highlighting fails we don't care; need to continue
            finally
            {
                if (sf2 != null)
                    sf2.Dispose();
            }
        }

//.........这里部分代码省略.........
                if (ptWidth <= 0)
                    ptWidth = 1;
                foreach (string tfl in flines)
                {
                    string fl;
                    if (tfl.Length > 0 && tfl[tfl.Length-1] == ' ')
                        fl = tfl.TrimEnd(' ');
                    else
                        fl = tfl;

                    // Check if entire string fits into a line
                    ms = MeasureString(fl, g, drawFont, drawFormat);
                    float tw = RSize.PointsFromPixels(g, ms.Width);
                    if (tw <= ptWidth)
                    {                       // line fits don't need to break it down further
                        lines.Add(fl);
                        lineWidths.Add(tw);
                        continue;
                    }

                    // Line too long; need to break into multiple lines
                    // 1) break line into parts; then build up again keeping track of word positions
                    string[] parts = fl.Split(wordBreak);	// this is the maximum split of lines
                    StringBuilder sb = new StringBuilder(fl.Length);
                    CharacterRange[] cra = new CharacterRange[parts.Length];
                    for (int i = 0; i < parts.Length; i++)
                    {
                        int sc = sb.Length;     // starting character
                        sb.Append(parts[i]);    // endding character
                        if (i != parts.Length - 1)  // last item doesn't need blank
                            sb.Append(" ");
                        int ec = sb.Length;
                        CharacterRange cr = new CharacterRange(sc, ec - sc);
                        cra[i] = cr;            // add to character array
                    }

                    // 2) Measure the word locations within the line
                    string wfl = sb.ToString();
                    WordStartFinish[] wordLocations = MeasureString(wfl, g, drawFont, drawFormat, cra);
                    if (wordLocations == null)
                        continue;

                    // 3) Loop thru creating new lines as needed
                    int startLoc = 0;
                    CharacterRange crs = cra[startLoc];
                    CharacterRange cre = cra[startLoc];
                    float cwidth = wordLocations[0].end;    // length of the first
                    float bwidth = wordLocations[0].start;  // characters need a little extra on start
                    string ts;
                    bool bLine = true;
                    for (int i=1; i < cra.Length; i++)
                    {
                        cwidth = wordLocations[i].end - wordLocations[startLoc].start + bwidth;
                        if (cwidth > ptWidth)
                        {	// time for a new line
                            cre = cra[i-1];
                            ts = wfl.Substring(crs.First, cre.First + cre.Length - crs.First);
                            lines.Add(ts);
                            lineWidths.Add(wordLocations[i-1].end - wordLocations[startLoc].start + bwidth);

                            // Find the first non-blank character of the next line
                            while (i < cra.Length &&
                                    cra[i].Length == 1 &&
                                    fl[cra[i].First] == ' ')
                            {
                                i++;
                            }
                            if (i < cra.Length)   // any lines left?
                            {  // yes, continue on
                                startLoc = i;
                                crs = cre = cra[startLoc];
                                cwidth = wordLocations[i].end - wordLocations[startLoc].start + bwidth;
                            }
                            else  // no, we can stop
                                bLine = false;
                          //  bwidth = wordLocations[startLoc].start - wordLocations[startLoc - 1].end;
                        }
                        else
                            cre = cra[i];
                    }
                    if (bLine)
                    {
                        ts = fl.Substring(crs.First, cre.First + cre.Length - crs.First);
                        lines.Add(ts);
                        lineWidths.Add(cwidth);
                    }
                }
                // create the final array from the Lists
                string[] la = lines.ToArray();
                width = lineWidths.ToArray();
                return la;
            }
            finally
            {
                if (drawFont != null)
                    drawFont.Dispose();
                if (drawFormat != null)
                    drawFont.Dispose();
            }
        }

		private void BuildContextMenus()
		{
			// EDIT MENU
			menuCopy = new MenuItem("&Copy", new EventHandler(this.menuCopy_Click));
			menuPaste = new MenuItem("Paste", new EventHandler(this.menuPaste_Click));
			menuDelete = new MenuItem("&Delete", new EventHandler(this.menuDelete_Click));
			menuFSep1 = new MenuItem("-");
			menuSelectAll = new MenuItem("Select &All", new EventHandler(this.menuSelectAll_Click));
			menuFSep2 = new MenuItem("-");

            List<MenuItem> insertItems = new List<MenuItem>();
            insertItems.Add(new MenuItem("&Chart...", new EventHandler(this.menuInsertChart_Click)));
            insertItems.Add(new MenuItem("&Image", new EventHandler(this.menuInsertImage_Click)));
            insertItems.Add(new MenuItem("&Line", new EventHandler(this.menuInsertLine_Click)));
			insertItems.Add(new MenuItem("&List", new EventHandler(this.menuInsertList_Click)));
			insertItems.Add(new MenuItem("&Matrix...", new EventHandler(this.menuInsertMatrix_Click)));
            insertItems.Add(new MenuItem("&Rectangle", new EventHandler(this.menuInsertRectangle_Click)));
            insertItems.Add(new MenuItem("&Subreport", new EventHandler(this.menuInsertSubreport_Click)));
            insertItems.Add(new MenuItem("Ta&ble...", new EventHandler(this.menuInsertTable_Click)));
            insertItems.Add(new MenuItem("&Textbox", new EventHandler(this.menuInsertTextbox_Click)));
            // Now add any CustomReportItems
            BuildContextMenusCustom(insertItems);

			menuInsert = new MenuItem("&Insert");
			menuInsert.MenuItems.AddRange(insertItems.ToArray());

			menuProperties = new MenuItem("&Properties...", new EventHandler(this.menuProperties_Click));

			//
			// Create chart context menu and add array of sub-menu items
			menuPropertiesLegend = new MenuItem("Legend...", new EventHandler(this.menuPropertiesLegend_Click));
			menuPropertiesCategoryAxis = new MenuItem("Category (X) Axis...", new EventHandler(this.menuPropertiesCategoryAxis_Click));
			menuPropertiesValueAxis = new MenuItem("Value (Y) Axis...", new EventHandler(this.menuPropertiesValueAxis_Click));
			
			menuPropertiesCategoryAxisTitle = new MenuItem("Category (X) Axis Title...", new EventHandler(this.menuPropertiesCategoryAxisTitle_Click));
			menuPropertiesValueAxisTitle = new MenuItem("Value (Y) Axis Title...", new EventHandler(this.menuPropertiesValueAxisTitle_Click));
			menuPropertiesChartTitle = new MenuItem("Title...", new EventHandler(this.menuPropertiesChartTitle_Click));

		}

//.........这里部分代码省略.........
            List<IExpr> largs = new List<IExpr>();
			while(true)
			{
				if (curToken.Type == TokenTypes.RPAREN)
				{	// We've got our function
					curToken = tokens.Extract();
					break;
				}
				if (argCount == 0)
				{
					// don't need to do anything
				}
				else if (curToken.Type == TokenTypes.COMMA)
				{
					curToken = tokens.Extract();
				}
				else
					throw new ParserException("Invalid function arguments.  Found '" + curToken.Value + "'  At column " + Convert.ToString(curToken.StartCol));
				
				MatchExprAndOr(out e);
				if (e == null)
					throw new ParserException("Expecting ',' or ')'.  Found '" + curToken.Value + "'  At column " + Convert.ToString(curToken.StartCol));

				largs.Add(e);
				argCount++;
			}
			if (_InAggregate)
			{
				ResolveFields(method, this._FieldResolve, largs);
				_FieldResolve = null;
				_InAggregate = false;
			}

            IExpr[] args = largs.ToArray();

			object scope;
			bool bSimple;
			if (!bOnePart)				
            {
                result = (firstPart == "Parameters")?
                    ResolveParametersMethod(method, thirdPart, args):
                    ResolveMethodCall(fullname, args);	// throw exception when fails
            }
			else switch(method.ToLower())
			{
				case "iif":
					if (args.Length != 3)
						throw new ParserException("iff function requires 3 arguments." + "  At column " + Convert.ToString(curToken.StartCol));
//  We allow any type for the first argument; it will get converted to boolean at runtime
//					if (args[0].GetTypeCode() != TypeCode.Boolean)
//						throw new ParserException("First argument to iif function must be boolean." + "  At column " + Convert.ToString(curToken.StartCol));
					result = new FunctionIif(args[0], args[1], args[2]);
					break;
				case "choose":
					if (args.Length <= 2)
						throw new ParserException("Choose function requires at least 2 arguments." + "  At column " + Convert.ToString(curToken.StartCol));
					switch (args[0].GetTypeCode())
					{
						case TypeCode.Double:
						case TypeCode.Single:
						case TypeCode.Int32:
						case TypeCode.Decimal:
						case TypeCode.Int16:
						case TypeCode.Int64:
							break;
						default:

//.........这里部分代码省略.........

            List<IExpr> largs = new List<IExpr>();
			while(true)
			{
				if (curToken.Type == TokenTypes.RPAREN)
				{	// We've got our function
					curToken = tokens.Extract();
					break;
				}
				if (argCount == 0)
				{
					// don't need to do anything
				}
				else if (curToken.Type == TokenTypes.COMMA)
				{
					curToken = tokens.Extract();
				}
				else
					throw new ParserException(Strings.Parser_ErrorP_Invalid_function_arguments + GetLocationInfoWithValue(curToken));
				
				MatchExprAndOr(out e);
				if (e == null)
					throw new ParserException(Strings.Parser_ErrorP_ExpectingComma + GetLocationInfoWithValue(curToken));

				largs.Add(e);
				argCount++;
			}
			if (_InAggregate)
			{
				inAggregateDataSet = null;
				_InAggregate = false;
			}

            IExpr[] args = largs.ToArray();

			object scope;
			bool bSimple;
			if (!bOnePart)				
            {
                result = (firstPart == "Parameters")?
                    ResolveParametersMethod(method, thirdPart, args):
                    ResolveMethodCall(fullname, args);	// throw exception when fails
            }
			else switch(method.ToLower())
			{
				case "iif":
					if (args.Length != 3)
						throw new ParserException(Strings.Parser_ErrorP_iff_function_requires_3_arguments + GetLocationInfo(curToken));
//  We allow any type for the first argument; it will get converted to boolean at runtime
//					if (args[0].GetTypeCode() != TypeCode.Boolean)
//						throw new ParserException("First argument to iif function must be boolean." + GetLocationInfo(curToken));
					result = new FunctionIif(args[0], args[1], args[2]);
					break;
				case "choose":
					if (args.Length <= 2)
						throw new ParserException(Strings.Parser_ErrorP_ChooseRequires2Arguments + GetLocationInfo(curToken));
					switch (args[0].GetTypeCode())
					{
						case TypeCode.Double:
						case TypeCode.Single:
						case TypeCode.Int32:
						case TypeCode.Decimal:
						case TypeCode.Int16:
						case TypeCode.Int64:
                        case TypeCode.UInt16:
                        case TypeCode.UInt32: