如何使用泛型类中的类的属性 [英] How to use a property from a Class in a Generic Class

问题描述

我有时会面临我的想法无法解决的问题。



我有一份包含多份报告的申请。

在网页中，我使用 GridView 来显示由按钮触发的报告数据。

由于所有报告都具有相同的功能：通用类应该可用。

WebPage

- GridView

- 按钮

- 一些用作DB参数的选项

报告

- 带有GridView记录的DataTable

- parameterArray

数据访问层

- 通用报告类 - >内部。我有一个公共密封，应该由业务逻辑调用

I am facing sometimes the problems that my ideas do not get to work.

I have an application with several reports.
In a Webpage I use a GridView to show the report data triggered by a Button.
Since all reports have infact the same functionality: a generic class should be usable.
WebPage
- GridView
- Button
- Some selection item used as parameters for DB
Report
- DataTable with Records for GridView
- parameterArray
Data Access Layer
- Generic Report class -> internal. I have a public sealed that should be called by the business logic

internal class SimpleReport
{
   internal string StoredProcedure {get; set;}
}

internal class OtherReport
{
   internal string StoredProcedure {get; set;}
}

internal class Report<T> where T : class
    {
        public event Action<DataTable> GeneratedReport;

        /// <summary>
        /// Generates the specified t.
        /// </summary>
        /// <param name="t">The t.</param>
        internal void Generate()
        {
            DataTable aTable = new DataTable();
            /// How to use property StoredProcedure from SimpleReport/OtherReport here?
            /// The class SimpleReport/OtherReport is in the 'T'
            if (GeneratedReport != null)
                GeneratedReport(aTable);

        }
    }

在Generic类中，T可以是SimpleReport。在SimpleReport中，我有一个DataTable属性。 T也可以是WeeklySalesreport并具有相同的DataTable属性（按名称 - > public DataTable值;

如何根据给定事件使用Generic类中的属性值Action< datatable> GeneratedReport ？



此外，每个报告类可以有不同的参数集（它们都有reportperiodID -int- common）我如何通过Generic类映射它们？



或者我的想法完全错了？

In the Generic class the T could be SimpleReport. In SimpleReport I have a DataTable property. T could also be WeeklySalesreport and has the same DataTable property (by name -> public DataTable Values;
How can I use the property Values in the Generic class based on the given event Action<datatable> GeneratedReport?

Furthermore each report class could have different set of parameters (they all have reportperiodID -int- common) How could I map them via the Generic class?

Or is my idea totally wrong?

推荐答案

public class Cell
{
    private int cell_id;
    private string cell_name;
    private string cell_supervisor;
    private double cell_target;
    private double cell_routing_target, cell_attended_target, cell_lost_time_target, cell_unaccounted_time_target, cell_absence_target;
    private List<string> cell_machinists;
    private List<double> cell_routing_actual, cell_attended_actual, cell_lost_time_actual, cell_unaccounted_time_actual, cell_absence_actual;
    private List<int> cell_ncr_qty;
    private List<double> cell_ncr_cost;
    private List<int> cell_timelost;

    public Cell(int id, string name, double target)
    {
        cell_id = id;
        cell_name = name;
        cell_target = target;
    }
    public void setSupervisor(string name){
        cell_supervisor = name;
    }

    public void setTargets(double routings, double attended, double losttime, double unacccounted, double abscence)
    {
        cell_routing_target = routings;
        cell_attended_target = attended;
        cell_lost_time_target = losttime;
        cell_unaccounted_time_target = unacccounted;
        cell_absence_target = abscence;
    }
    public void setMachinist(string name, double routings, double attended, double lost_time, double unaccounted_time, int ncr_qty, double ncr_cost, int time_lost, double absence)
    {
        cell_machinists.Add(name);
        cell_routing_actual.Add(routings);
        cell_attended_actual.Add(attended);
        cell_lost_time_actual.Add(lost_time);
        cell_unaccounted_time_actual.Add(unaccounted_time);
        cell_ncr_qty.Add(ncr_qty);
        cell_ncr_cost.Add(ncr_cost);
        cell_timelost.Add(time_lost);
        cell_absence_actual.Add(absence);
    }


    public string CellName
    {
        get {
            return cell_name;
        }
    }

    public string Supervisor
    {
        get
        {
            return cell_supervisor;
        }
    }
    public List<string> Machinists
    {
        get
        {
            return cell_machinists;
        }
    }

}

使用嵌套列表和子报告是简短回答！

Use nested lists and sub reports is the short answer!

我使用泛型类中的构造函数修复它

i fixed it by using a constructor in the generic class

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