[Débutant] Exporter une datatable avec chart vers excel avec c#?

Bonjour à tous je voudrais exporter une datatable vers excel et créer une charte basée sur les données de cette datatable , bon après une recherche sur internet j'ai trouvé cette fonction qui export ma datatable :

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
 
public static bool Export(System.Data.DataTable dt, string sheetName,string Header_Text)
        {
            object Missing = System.Reflection.Missing.Value;
            Excel.Application oXL;
            Excel.Workbook oWB;
            Excel.Worksheet oSheet;
            Excel.Range oRange;
 
            try
            {
                // Start Excel and get Application object. 
                oXL = new Excel.Application();
 
                // Set some properties 
                oXL.Visible = false;
                oXL.DisplayAlerts = false;
 
                // Get a new workbook. 
                oWB = oXL.Workbooks.Add(Missing);
 
                // Get the Active sheet 
                oSheet = (Excel.Worksheet)oWB.ActiveSheet;
                oSheet.Name = sheetName;
 
                oSheet.Cells[1, 1] = Header_Text;
 
                oSheet.get_Range("A1", "A1").ColumnWidth = 13;
                oSheet.get_Range("B1", "B1").ColumnWidth = 13;
                oSheet.get_Range("C1", "C1").ColumnWidth = 25;
                oSheet.get_Range("A1", "C1").Font.Size = 14;
 
                oSheet.get_Range("A1", "C1").Font.Bold = true;
                oSheet.get_Range("A1", "C1").Merge(true);
                oSheet.get_Range("A1", "C1").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
 
                oSheet.get_Range("A3", "C3").Font.Bold = true;
 
                int rowCount = 3;
                for (int i = 1; i < dt.Columns.Count + 1; i++)
                {
                    oSheet.Cells[rowCount, i] = dt.Columns[i - 1].ColumnName;
                }
 
                foreach (DataRow dr in dt.Rows)
                {
                    rowCount += 1;
                    for (int i = 1; i < dt.Columns.Count + 1; i++)
                    {
                        oSheet.Cells[rowCount, i] = dr[i - 1].ToString();
                    }
                }
 
                // Resize the columns 
                //oRange = oSheet.get_Range(oSheet.Cells[1, 1],
                //oSheet.Cells[rowCount, dt.Columns.Count]);
                //oRange.EntireColumn.AutoFit();
 
                // Save the sheet and close 
                oSheet = null;
                oRange = null;
 
                string strParentDirectory = Declaration.lireFichier_Pieces();
                //strParentDirectory = strParentDirectory + "\\Data";
                if (!Directory.Exists(strParentDirectory))
                {
                    Directory.CreateDirectory(strParentDirectory);
                }
                string strFileName = strParentDirectory + "\\Statistics de la date_" + DateTime.Now.ToString("yyyyMMdd") + ".xls";
                if (File.Exists(strFileName))
                {
                    File.Delete(strFileName);
                }
                FileStream file = new FileStream(strFileName, FileMode.Create);
                file.Close();
 
                oWB.SaveAs(strFileName, Excel.XlFileFormat.xlWorkbookNormal,
                    Missing, Missing, Missing, Missing,
                    Excel.XlSaveAsAccessMode.xlExclusive,
                    Missing, Missing, Missing,
                    Missing, Missing);
                oWB.Close(Missing, Missing, Missing);
                oWB = null;
                oXL.Quit();
            }
            catch
            {
                throw;
            }
            finally
            {
                // Clean up
                // NOTE: When in release mode, this does the trick 
                GC.WaitForPendingFinalizers();
                GC.Collect();
                GC.WaitForPendingFinalizers();
                GC.Collect();
            }
 
            return true;
        }

et voici ma requête :

Code:

1
2
3
4
5
 
DataTable dt_Sourcing = new DataTable();
                dt_Sourcing=Declaration.Remplir("SELECT Count(*) AS Expr1, Candidat.Sourcing FROM Sourcing INNER JOIN (Candidat INNER JOIN Suivi ON Candidat.IdCandidat = Suivi.IdCandidat) ON Sourcing.Sourcing = Candidat.Sourcing WHERE (((Suivi.ValidationSM_Sup)='Validé') AND ((Month([Date_EntretienSM]))=" + Mois + ") AND ((Year([Date_EntretienSM]))=" + Year + ")) GROUP BY Candidat.Sourcing;");
 
                Export(dt_Sourcing, "Statistique par sourcing", "Statistique par sourcing du " + DateTime.Now.ToString("dd/MM/yyyy"));

maintenant je veux créer une charte d’après cette datatable et merci beaucoup d'avance :)