循环遍历 Vb.net 中模型类的 ArrayList [英] Looping through the ArrayList of Model Class in Vb.net

问题描述

我有一个包含模型类对象的数组列表.这是我创建数组列表的方法.

I have an arraylist, that contains model class objects. Here is how I create the array list.

Dim arr As New ArrayList
Dim citizenHelper As New CitizensHelper
While dr.Read
    Dim appointment As New Appointment
    appointment.AppointmentId = dr("appointment_id")
    appointment.DoctorNin = dr("doctor_nin")
    appointment.DoctorName = citizenHelper.getNameByNin(dr("doctor_nin"))
    appointment.PatientNin = dr("patient_nin")
    appointment.PatientName = citizenHelper.getNameByNin(dr("patient_nin"))
    appointment.BookingDate = dr("booking_date")
    If dr("cancelled") Is "1" Then
        appointment.Cancelled = True
    End If
    If dr("active") Is "1" Then
        appointment.Active = True
    End If
    arr.Add(appointment) 'I add to the array like this
End While
ViewData("row") = arr

我想用这个数组列表在查看页面上生成一个记录表.我尝试使用 for 循环，但我无法访问这样的模型值.所以请告诉我，我该如何解决这个问题?

I want to use this arraylist to generate a table of records on the view page. I tried using a for loop but I cannot access the model values like that. So please tell me, how i can solve this?

我尝试做这样的事情

<% For Each ap As ArrayList In ViewData("row")%>
    <tr>
        <td>
            ...... <!-- Now I want to show those value from a table here -->
        </td>
    </tr>
<% Next ap%>

推荐答案

你应该使用

<% For Each ap As Appointment In ViewData("rows") As ArrayList %>
<tr>
    <td>
        ...... <!-- Now I want to show those value from a table here -->
    </td>
</tr>
<% Next ap%>

ViewData("rows") 包含 ArrayList，所以我们需要迭代这个集合，而 ArrayList 包含 Appointment 类型的数据.

The ViewData("rows") contains the ArrayList so we need to iterate this collection, and the ArrayList contains the data of Appointment type.

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