private void FormStatistics_Load(object sender, EventArgs e)
{
Services.FiliereService filiereService = new Services.FiliereService();
Services.EtudiantService etudiantService = new Services.EtudiantService();
Color[] colors = new Color[]
{
Color.Red,
Color.Blue,
Color.Green,
Color.BlueViolet,
Color.Orange,
Color.Lime,
};
DataTable dataFiliere = filiereService.getAll();
DataTable dataEtudiant = etudiantService.getAll();
Dictionary <String, int> nbEtudiantFiliere = new Dictionary <String, int>();
double nbTotalEtudiant = Convert.ToDouble(dataEtudiant.Rows.Count);
for (int i = 0; i < dataFiliere.Rows.Count; i++)
{
nbEtudiantFiliere.Add(dataFiliere.Rows[i]["FiliereName"].ToString(), 0);
}
for (int i = 0; i < dataEtudiant.Rows.Count; i++)
{
int idFiliere = Convert.ToInt32(dataEtudiant.Rows[i]["ID_Filiere"]);
String nomFiliere = dataFiliere.Rows[idFiliere - 1]["FiliereName"].ToString();
nbEtudiantFiliere[nomFiliere] += 1;
}
int k = 0;
foreach (KeyValuePair <string, int> kvp in nbEtudiantFiliere)
{
this.chart1.Series["NombreEtudiant"].Points.AddXY(kvp.Key, kvp.Value);
this.chart1.Series["NombreEtudiant"].Points[k].Label = Math.Round((kvp.Value / nbTotalEtudiant) * 100, 2) + "%";
this.chart1.Series["NombreEtudiant"].Points[k].Color = colors[k];
Legend legend = new Legend();
legend.Name = kvp.Key;
legend.ForeColor = colors[k];
this.chart1.Legends.Add(legend);
this.chart1.Legends[0].CustomItems.Add(colors[k], kvp.Key);
k++;
}
}
