通过模型类的ArrayList中的Vb.net循环 [英] Looping through the ArrayList of Model Class in Vb.net

问题描述

我有一个ArrayList，包含模型类的对象。下面是如何创建数组列表。

 昏暗ARR作为新的ArrayList
昏暗citizenHelper作为新CitizensHelper
虽然dr.Read
    昏暗任命为新的约会
    appointment.AppointmentId =博士（appointment_id）
    appointment.DoctorNin =博士（doctor_nin）
    appointment.DoctorName = citizenHelper.getNameByNin（DR（doctor_nin））
    appointment.PatientNin =博士（patient_nin）
    appointment.PatientName = citizenHelper.getNameByNin（DR（patient_nin））
    appointment.BookingDate =博士（booking_date）
    如果博士（取消）为1，则
        appointment.Cancelled = TRUE
    万一
    如果博士（活动）为1，则
        appointment.Active = TRUE
    万一
    arr.Add（预约）我将添加到像这样的数组
虽然结束
ViewData的（行）= ARR
 

我想用这个数组列表的视图页面上生成的记录表。我试图用一个for循环，但我不能访问这样的模型值。所以，请告诉我，我怎么能解决这个问题？

我试图做这样的事情。

 ＆LT;％每个AP作为的ArrayList中的ViewData（行）％GT;
    ＆所述; TR＆GT;
        ＆所述; TD＆GT;
            ......＆LT;！ - 现在我想说明从表中所列载的价值 - ＆GT;
        ＆LT; / TD＆GT;
    ＆LT; / TR＆GT;
＆LT;％下一个AP％GT;
 

解决方案

您应该使用

 ＆LT;％每个AP作为预约的ViewData（行）作为ArrayList的％GT;
＆所述; TR＆GT;
    ＆所述; TD＆GT;
        ......＆LT;！ - 现在我想说明从表中所列载的价值 - ＆GT;
    ＆LT; / TD＆GT;
＆LT; / TR＆GT;
＆LT;％下一个AP％GT;
 

在ViewData的（行）包含ArrayList中，所以我们需要遍历此集合，并在ArrayList包含委任的数据键入。

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

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?

I tried doing something like this

<% 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%>

解决方案

You should use

<% 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%>

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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