Hi,

i have a written a piece of code to generate graph using c# application. The problem i am facing is to display valuelabels in the graph. how to achieve this?
The piece of code is given below.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Printing;
using Microsoft.Office.Core;
using Microsoft.Office;
using System.Runtime.InteropServices;

privatevoid ShowPresentation()
{
String strTemplate, strPic;
strTemplate =
"C:\\Program Files\\Microsoft Office\\Templates\\Presentation Designs\\Blends.pot";
strPic = "C:\\Windows\\Blue Lace 16.bmp";
bool bAssistantOn;
PowerPoint.Application objApp;
PowerPoint.Presentations objPresSet;
PowerPoint._Presentation objPres;
PowerPoint.Slides objSlides;
PowerPoint._Slide objSlide;
PowerPoint.TextRange objTextRng;
PowerPoint.Shapes objShapes;
PowerPoint.Shape objShape;
PowerPoint.SlideShowWindows objSSWs;
PowerPoint.SlideShowTransition objSST;
PowerPoint.SlideShowSettings objSSS;
PowerPoint.SlideRange objSldRng;
Graph.Chart objChart;
Graph.DataSheet dataSheet;

//Create a new presentation based on a template.
objApp = new PowerPoint.Application();
objApp.Visible = MsoTriState.msoTrue;
objPresSet = objApp.Presentations;
objPres = objPresSet.Open(strTemplate,
MsoTriState.msoFalse, MsoTriState.msoTrue, MsoTriState.msoTrue);
objSlides = objPres.Slides;
//Build Slide #1:
//Add text to the slide, change the font and insert/position a
//picture on the first slide.
objSlide = objSlides.Add(1, PowerPoint.PpSlideLayout.ppLayoutTitleOnly);
objTextRng = objSlide.Shapes[1].TextFrame.TextRange;
objTextRng.Text = "My Sample Presentation";
objTextRng.Font.Name = "Comic Sans MS";
objTextRng.Font.Size = 48;
objSlide.Shapes.AddPicture(strPic, MsoTriState.msoFalse, MsoTriState.msoTrue,
150, 150, 500, 350);
//Build Slide #2:
//Add text to the slide title, format the text. Also add a chart to the
//slide and change the chart type to a 3D pie chart.
objSlide = objSlides.Add(2, PowerPoint.PpSlideLayout.ppLayoutTitleOnly);
objTextRng = objSlide.Shapes[1].TextFrame.TextRange;
objTextRng.Text = "My Chart";
objTextRng.Font.Name = "Comic Sans MS";
objTextRng.Font.Size = 48;
objChart = (Graph.Chart)objSlide.Shapes.AddOLEObject(150, 150, 480, 320,
"MSGraph.Chart.8", "", MsoTriState.msoFalse, "", 0, "",
MsoTriState.msoFalse).OLEFormat.Object;
dataSheet = objChart.Application.DataSheet;

dataSheet.Cells[1, 2] = "abc";
dataSheet.Cells[2, 2] = "50";
dataSheet.Cells[2, 3] = "40";
dataSheet.Cells[2, 4] = "50";
dataSheet.Cells[2, 5] = "50";
dataSheet.Cells[3, 2] = "60";
dataSheet.Cells[3, 3] = "70";
dataSheet.Cells[3, 4] = "80";
dataSheet.Cells[3, 5] = "60";
//dataSheet.Cells[3, 6] = "0";
dataSheet.Cells[4, 2] = "50";
dataSheet.Cells[4, 3] = "40";
dataSheet.Cells[4, 4] = "50";
dataSheet.Cells[4, 5] = "50";
//dataSheet.Cells[4, 6] = "0";
objChart.Application.Update();
//objChart.ChartType = Graph.XlChartType.xl3DPie;
objChart.Legend.Position = Graph.XlLegendPosition.xlLegendPositionBottom;
//objChart.ApplyDataLabels(Graph.XlDataLabelsType.xl DataLabelsShowLabel, true, false, false);
objChart.HasTitle = true;
objChart.ChartTitle.Text = "Here it is...";
//Build Slide #3:
//Change the background color of this slide only. Add a text effect to the slide
//and apply various color schemes and shadows to the text effect.
objSlide = objSlides.Add(3, PowerPoint.PpSlideLayout.ppLayoutBlank);
objSlide.FollowMasterBackground = MsoTriState.msoFalse;
objShapes = objSlide.Shapes;
objShape = objShapes.AddTextEffect(MsoPresetTextEffect.msoTextEffect27,
"The End", "Impact", 96, MsoTriState.msoFalse, MsoTriState.msoFalse, 230, 200);
//Modify the slide show transition settings for all 3 slides in
//the presentation.
int[] SlideIdx = newint[3];
for (int i = 0; i < 3; i++) SlideIdx[i] = i + 1;
objSldRng = objSlides.Range(SlideIdx);
objSST = objSldRng.SlideShowTransition;
objSST.AdvanceOnTime = MsoTriState.msoTrue;
objSST.AdvanceTime = 3;
objSST.EntryEffect = PowerPoint.PpEntryEffect.ppEffectBoxOut;
//Prevent Office Assistant from displaying alert messages:
bAssistantOn = objApp.Assistant.On;
objApp.Assistant.On = false;
//Run the Slide show from slides 1 thru 3.
objSSS = objPres.SlideShowSettings;
objSSS.StartingSlide = 1;
objSSS.EndingSlide = 3;
objSSS.Run();
//Wait for the slide show to end.
objSSWs = objApp.SlideShowWindows;
while (objSSWs.Count >= 1) System.Threading.Thread.Sleep(100);
//Reenable Office Assisant, if it was on:
if (bAssistantOn)
{
objApp.Assistant.On = true;
objApp.Assistant.Visible = false;
}
//Close the presentation without saving changes and quit PowerPoint.
objPres.SaveAs("C:\\abc.ppt", PowerPoint.PpSaveAsFileType.ppSaveAsPresentation, MsoTriState.msoTrue);
objPres.Close();
objApp.Quit();

}