クラスの割り当てが機能する関数を取得しようとしていますが、プログラムが問題の特定の行に到達すると、プログラムは停止し、この行の後には何も実行されません。プログラムはロックアップせず、現在の実行パスが停止するだけです。
デバッグを実行しようとしましたが、ほとんど同じことが起こります。Arraylist 要素に格納されているオブジェクトから関数を呼び出す必要があるリンクにヒットすると、呼び出される実際の関数のブレーク ポイントにヒットせず、それ以上何も起こりません。
Public Structure Appliances
' Create New Appliance object
Public Sub New(name As String, pusage As Double)
aName = name
aPUsage = pusage
End Sub
' Create New Washer Object
Public Sub New(name As String, pusage As Double, wusage As Double)
aName = name
aPUsage = pusage
aWUsage = wusage
End Sub
' Functions
Public Function getAName()
Return aName
End Function
Public Function getAPUsage()
Return aPUsage
End Function
Public Function getAWUsage()
Return aWUsage
End Function
Dim aName As String ' Appliance Name
Dim aPUsage As Double ' Appliane Power Usage
Dim aWUsage As Double ' Appliance Water Usage
End Structure
...
Public Class Form1
...
Dim appList As New ArrayList() ' Create an arraylist appliance objects
Public appTemp As Appliances ' To store appliance objects until they can be added to the arraylist
...
Private Function getAppInfo()
getAppInfo = Nothing
Do While fInStream.Peek() <> -1
s = fInStream.ReadLine() ' Get a line from the file and set s to it
Dim words As String() = s.Split(New Char() {","c}) ' Split the line contents along commas and set those parts into words
words(0) = words(0).Replace("_", " ") ' Reaplce underscores with spaces
If (words.Count = 3) Then ' If words contains the washer appliance
appTemp = New Appliances(words(0), Double.Parse(words(1)), Double.Parse(words(2)))
appList.Add(appTemp)
Else ' For all other appliances
appTemp = New Appliances(words(0), Double.Parse(words(1)))
appList.Add(appTemp)
End If
Loop
End Function
Private Function setUsage(name As String)
setUsage = Nothing
' Find appliance
For i = 0 To appList.Count
If (name = appList(i).getAName()) Then
If (name = "Washer") Then
s = appList(i).getWUsage() ' !!!This is the line where the execution dies at, nothing after this line is processed and the function call is not completed
txtbGPH.Text = s
End If
MsgBox("Test 1")
Exit For
ElseIf (i = appList.Count) Then
MsgBox("Appliance could not be found")
End If
Next
End Function
End Class