自定义事件问题

Question

我创建了一个类，在其中运行一个新进程(CLI 外部应用程序(，该应用程序有自己的进度条，所以我从隐藏的进程控制台中选择进度以计算控制台外的百分比，在我的类中。

好吧，我想做的是在类中创建一个事件(或其他什么，事件只是我认为有用的第一个事件(以返回一个包含进度百分比的整数(百分比是从 0 到 99 的整数(

我已经阅读了有关如何创建自定义事件的信息，但我在尝试它时很迷茫，我不知道如何在我的类之外检索整数(变量 Percent(以从其他类处理它，例如我从我的类运行一个方法，所以我想处理默认"Form1"类中的进程百分比进度。

这是我的自定义类中的代码：

Public Class CoreConverter
Public Shared Effects As String = String.Empty ' DSP Effects
' <summary>
' Gets or sets the CoreConverter executable path.
' </summary>
Public Shared CoreConverter_Location As String = ".CoreConverter.exe"
Public Shared CoreConverter As New Process()
Public Shared CoreConverter_Info As New ProcessStartInfo() With { _
              .CreateNoWindow = True, _
              .UseShellExecute = False, _
              .RedirectStandardOutput = True, _
              .RedirectStandardError = True _
}
Public Shared Event Progress As EventHandler
Protected Sub OnProgress()
    RaiseEvent Progress(Me, EventArgs.Empty)
End Sub
Public Shared Sub Run_CoreConverter()
    CoreConverter_Info.FileName = CoreConverter_Location
    CoreConverter_Info.StandardErrorEncoding = System.Text.Encoding.Unicode
    CoreConverter_Info.StandardOutputEncoding = System.Text.Encoding.Unicode
    CoreConverter.StartInfo = CoreConverter_Info
    CoreConverter.Start()
    Dim Percentage As Integer = 0
    While Not CoreConverter.HasExited
        If ChrW(CoreConverter.StandardOutput.Read) = "*" Then
            Percentage += 1
            RaiseEvent Progress(Nothing, EventArgs.Empty)
        End If
    End While
   ' MsgBox("end")
End Sub
End Class

这是来自 Form1 类的代码

Public Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Shown
    AddHandler CoreConverter.Progress, AddressOf Process_Progress
    CoreConverter.Run_CoreConverter(Arguments, blah blah blah)
End Sub
Protected Sub Process_Progress(sender As Object, e As EventArgs)
    ' MsgBox(e.ToString) ' I want to obtain the Integer percentage but don't know how to
End Sub

请注意，我需要使用 Addhandler 来处理 Progress 事件，但实际上我想以其他方式处理它，但我做不到，我不知道为什么：

Public Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Shown
    CoreConverter.Run_CoreConverter(Arguments, blah blah blah)
End Sub
Protected Sub Process_Progress(sender As Object, e As EventArgs) _
Handles CoreConverter.Progress
    ' MsgBox(e.ToString) ' I want to obtain the Integer percentage but don't know how to
End Sub

那么我能做些什么来解决这两个问题呢？

更新：

尝试使用@varocarbas解决方案来解决它...

核心转换器类：

Public Shared WithEvents p_progressBar As ProgressBar
Public Shared Sub Run_CoreConverter()
    p_progressBar = New ProgressBar() With {.Maximum = 60}
    CoreConverter_Info.FileName = CoreConverter_Location
    CoreConverter.StartInfo = CoreConverter_Info
    CoreConverter.Start()
    While Not CoreConverter.HasExited
        If ChrW(CoreConverter.StandardOutput.Read) = "*" Then
            p_progressBar.PerformStep()
        End If
    End While
    p_progressBar.Dispose()
    CoreConverter.Close
End Sub

中一类：

Public Sub Form1_Shown(sender As Object, e As EventArgs) Handles MyBase.Shown
    ' Exception: p_progressBar is not an event (of course, I know)
    AddHandler CoreConverter.p_progressBar, AddressOf Process_Progress
    CoreConverter.Run_CoreConverter(arguments, blah blah blah)
End Sub
Sub Process_Progress(sender As Object, e As EventArgs) ' Handles Coreconverter.p_progressBar obviouslly I can't do this... :(
    MsgBox(sender.value)
End Sub

Answer 1

最后，

我按照此处标记答案的步骤解决了这个问题： 处理另一个类中的事件