private void button1_Click(object sender, System.EventArgs e)
            {
            }
            

private void button1_Click(object sender, System.EventArgs e)
            {
            object oMissing = System.Reflection.Missing.Value;
            object oEndOfDoc = "\\endofdoc"; /* \endofdoc is a predefined bookmark */
            //Start Word and create a new document.
            Word._Application oWord;
            Word._Document oDoc;
            oWord = new Word.Application();
            oWord.Visible = true;
            oDoc = oWord.Documents.Add(ref oMissing, ref oMissing,
            ref oMissing, ref oMissing);
            //Insert a paragraph at the beginning of the document.
            Word.Paragraph oPara1;
            oPara1 = oDoc.Content.Paragraphs.Add(ref oMissing);
            oPara1.Range.Text = "Heading 1";
            oPara1.Range.Font.Bold = 1;
            oPara1.Format.SpaceAfter = 24;    //24 pt spacing after paragraph.
            oPara1.Range.InsertParagraphAfter();
            //Insert a paragraph at the end of the document.
            Word.Paragraph oPara2;
            object oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oPara2 = oDoc.Content.Paragraphs.Add(ref oRng);
            oPara2.Range.Text = "Heading 2";
            oPara2.Format.SpaceAfter = 6;
            oPara2.Range.InsertParagraphAfter();
            //Insert another paragraph.
            Word.Paragraph oPara3;
            oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oPara3 = oDoc.Content.Paragraphs.Add(ref oRng);
            oPara3.Range.Text = "This is a sentence of normal text. Now here is a table:";
            oPara3.Range.Font.Bold = 0;
            oPara3.Format.SpaceAfter = 24;
            oPara3.Range.InsertParagraphAfter();
            //Insert a 3 x 5 table, fill it with data, and make the first row
            //bold and italic.
            Word.Table oTable;
            Word.Range wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oTable = oDoc.Tables.Add(wrdRng, 3, 5, ref oMissing, ref oMissing);
            oTable.Range.ParagraphFormat.SpaceAfter = 6;
            int r, c;
            string strText;
            for(r = 1; r <= 3; r++)
            for(c = 1; c <= 5; c++)
            {
            strText = "r" + r + "c" + c;
            oTable.Cell(r, c).Range.Text = strText;
            }
            oTable.Rows[1].Range.Font.Bold = 1;
            oTable.Rows[1].Range.Font.Italic = 1;
            //Add some text after the table.
            Word.Paragraph oPara4;
            oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oPara4 = oDoc.Content.Paragraphs.Add(ref oRng);
            oPara4.Range.InsertParagraphBefore();
            oPara4.Range.Text = "And here's another table:";
            oPara4.Format.SpaceAfter = 24;
            oPara4.Range.InsertParagraphAfter();
            //Insert a 5 x 2 table, fill it with data, and change the column widths.
            wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oTable = oDoc.Tables.Add(wrdRng, 5, 2, ref oMissing, ref oMissing);
            oTable.Range.ParagraphFormat.SpaceAfter = 6;
            for(r = 1; r <= 5; r++)
            for(c = 1; c <= 2; c++)
            {
            strText = "r" + r + "c" + c;
            oTable.Cell(r, c).Range.Text = strText;
            }
            oTable.Columns[1].Width = oWord.InchesToPoints(2); //Change width of columns 1 & 2
            oTable.Columns[2].Width = oWord.InchesToPoints(3);
            //Keep inserting text. When you get to 7 inches from top of the
            //document, insert a hard page break.
            object oPos;
            double dPos = oWord.InchesToPoints(7);
            oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range.InsertParagraphAfter();
            do
            {
            wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            wrdRng.ParagraphFormat.SpaceAfter = 6;
            wrdRng.InsertAfter("A line of text");
            wrdRng.InsertParagraphAfter();
            oPos = wrdRng.get_Information
            (Word.WdInformation.wdVerticalPositionRelativeToPage);
            }
            while(dPos >= Convert.ToDouble(oPos));
            object oCollapseEnd = Word.WdCollapseDirection.wdCollapseEnd;
            object oPageBreak = Word.WdBreakType.wdPageBreak;
            wrdRng.Collapse(ref oCollapseEnd);
            wrdRng.InsertBreak(ref oPageBreak);
            wrdRng.Collapse(ref oCollapseEnd);
            wrdRng.InsertAfter("We're now on page 2. Here's my chart:");
            wrdRng.InsertParagraphAfter();
            //Insert a chart.
            Word.InlineShape oShape;
            object oClassType = "MSGraph.Chart.8";
            wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            oShape = wrdRng.InlineShapes.AddOLEObject(ref oClassType, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing);
            //Demonstrate use of late bound oChart and oChartApp objects to
            //manipulate the chart object with MSGraph.
            object oChart;
            object oChartApp;
            oChart = oShape.OLEFormat.Object;
            oChartApp = oChart.GetType().InvokeMember("Application",
            BindingFlags.GetProperty, null, oChart, null);
            //Change the chart type to Line.
            object[] Parameters = new Object[1];
            Parameters[0] = 4; //xlLine = 4
            oChart.GetType().InvokeMember("ChartType", BindingFlags.SetProperty,
            null, oChart, Parameters);
            //Update the chart image and quit MSGraph.
            oChartApp.GetType().InvokeMember("Update",
            BindingFlags.InvokeMethod, null, oChartApp, null);
            oChartApp.GetType().InvokeMember("Quit",
            BindingFlags.InvokeMethod, null, oChartApp, null);
            //... If desired, you can proceed from here using the Microsoft Graph
            //Object model on the oChart and oChartApp objects to make additional
            //changes to the chart.
            //Set the width of the chart.
            oShape.Width = oWord.InchesToPoints(6.25f);
            oShape.Height = oWord.InchesToPoints(3.57f);
            //Add text after the chart.
            wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
            wrdRng.InsertParagraphAfter();
            wrdRng.InsertAfter("THE END.");
            //Close this form.
            this.Close();
            }
            

using Word = Microsoft.Office.Interop.Word;
            using System.Reflection;