Question

我设计了一个表格，并使用表格上的条形图来显示特定年份（例如2009年）特定计划（护理）中存在特定问题（例如家庭问题）的学生人数。我设计了其他所有内容以从数据库中获取总数并将其显示在条形图上。我能够在表单上实现这一点，但我必须生成一个报告并在报告上显示相同的条形图。我的问题是，如果不连接数据库，我能实现这一目标吗？如果是，那么真棒，但如何？在此先感谢。

以下代码是特定课程中有问题的学生总数（家庭问题，吸毒成瘾者等）3年的条形图代码。

    public void calculateStatsFor3Years(int year1, int year2, int year3)
    {
         //count the number of students in with intervention in particular program in a year

        intervention.Classes.Programs objPrograms = new intervention.Classes.Programs();

        List<int> programCodeList = objPrograms.GetProgramCode();

        List<int> numStudentsYear1 = new List<int>();
        List<int> numStudentsYear2 = new List<int>();
        List<int> numStudentsYear3 = new List<int>();

        int temp1 = 0;
        int temp2 = 0;
        int temp3 = 0;

        for (int counter = 0; counter < programCodeList.Count; counter++)
        {

            temp1 = Convert.ToInt32(objControllerClass.get_students_intervention_particular_year_program(year1, programCodeList.ElementAt(counter)));

            numStudentsYear1.Add(temp1);

            temp2 = Convert.ToInt32(objControllerClass.get_students_intervention_particular_year_program(year2, programCodeList.ElementAt(counter)));

            numStudentsYear2.Add(temp2);

            temp3 = Convert.ToInt32(objControllerClass.get_students_intervention_particular_year_program(year3, programCodeList.ElementAt(counter)));

            numStudentsYear3.Add(temp3);

        }//for 

        int[] yValues0 = numStudentsYear1.ToArray();//2011-2012
        int[] yValues1 = numStudentsYear2.ToArray();//2010-2011
        int[] yValues2 = numStudentsYear3.ToArray();//2009-2010 


        string[] xNameSeries0 = { "Agent immobilier", "Mécanique du bâtiment", "Gestion des eaus ", "Soins infirmiers ", "Anglais ", "Comtabilité et gestion ", "Bureautique ", "Architecture et gestion de réseau ", "Programmeur web ", "Assurance de dommages ", "O'Bois ", "Éducation à l'enface ", "Francisation " };

        myBarChart.Series[0].Points.DataBindXY(xNameSeries0, yValues0);
        myBarChart.Series[1].Points.DataBindXY(xNameSeries0, yValues1);
        myBarChart.Series[2].Points.DataBindXY(xNameSeries0, yValues2);


        //legend text
        myBarChart.Series[0].LegendText = year1.ToString();
        myBarChart.Series[1].LegendText = year2.ToString();
        myBarChart.Series[2].LegendText = year3.ToString();

    }//calculateStatsFor3Years()

这是我需要在Crystal Reports中显示的水平图的屏幕截图。

http://i1342.photobucket.com/albums/o765/CSharpJunior/C%20Sharp%20project/horizontalGraph.jpg

Answer 1

这是可能的。最好的方法可能是使用数据集。我经常将人们推荐给：http://csharp.net-informations.com/crystal-reports/csharp-crystal-reports-without-database.htm

using System;
using System.Windows.Forms;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
using System.Data;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            DataSet1 ds = new DataSet1();
            DataTable t = ds.Tables.Add("Items");
            t.Columns.Add("id", Type.GetType("System.Int32"));
            t.Columns.Add("Item", Type.GetType("System.String"));

            DataRow r ;
            int i = 0;
            for (i = 0; i <= 9; i++)
            {
                r = t.NewRow();
                r["id"] = i;
                r["Item"] = "Item" + i;
                t.Rows.Add(r);
            }

            CrystalReport1 objRpt = new CrystalReport1();
            objRpt.SetDataSource(ds.Tables[1]);
            crystalReportViewer1.ReportSource = objRpt;
            crystalReportViewer1.Refresh(); 
        }
    }
}

没有连接到数据库的Crystal报表图表

1 个答案: