vb.net 教程 6-2 进程 Process类属性

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vb.net 教程 6-2 进程 Process类属性

本节内容承接上一节，主要看看如何获得某个进程的属性。

窗体设计如下：

当按下“进程列表”按钮后，会在listview1中显示所有的进程及其ID，选中某个进程，将在右边文本框中显示该进程的信息。

具体代码如下：

按下按钮：

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

For Each pro As Process In Process.GetProcesses

Dim lvPro As New ListViewItem(pro.ProcessName)

lvPro.SubItems.Add(pro.Id)

ListView1.Items.Add(lvPro)

End Sub

点击listview中某个进程项：

Private Sub ListView1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListView1.SelectedIndexChanged

If ListView1.SelectedItems.Count <> 1 Then

Exit Sub

End If

Dim lvpro As New ListViewItem()

lvpro = ListView1.SelectedItems(0)

Dim proid As Integer = Integer.Parse(lvpro.SubItems(1).Text)

Dim pro As Process = Process.GetProcessById(proid)

Dim proinfo As String = ""

proinfo &= "进程的名称：" & pro.ProcessName & ControlChars.CrLf

proinfo &= "物理内存量：" & pro.WorkingSet64 & ControlChars.CrLf

proinfo &= "最大物理内存：" & pro.PeakWorkingSet64 & ControlChars.CrLf

proinfo &= "虚拟内存量：" & pro.VirtualMemorySize64 & ControlChars.CrLf

proinfo &= "最大虚拟内存：" & pro.PeakVirtualMemorySize64 & ControlChars.CrLf

Try

proinfo &= "进程启动的时间：" & pro.StartTime.ToString("yyyy-MM-dd HH:mm:ss") & ControlChars.CrLf

Catch ex As Exception

proinfo &= "进程启动的时间：-" & ControlChars.CrLf

End Try

Try

proinfo &= "总的处理器时间：" & pro.TotalProcessorTime.ToString & ControlChars.CrLf

Catch ex As Exception

proinfo &= "总的处理器时间：-" & ControlChars.CrLf

End Try

Try

proinfo &= "主窗口标题：" & pro.MainWindowTitle & ControlChars.CrLf

Catch ex As Exception

proinfo &= "主窗口标题：-" & ControlChars.CrLf

End Try

TextBox1.Text = proinfo

End Sub

为了防止出错，在代码中加入了try...catch语句。

运行时结果如图：

由于.net平台下C#和vb.NET很相似，本文也可以为C#爱好者提供参考。

学习更多vb.net知识，请参看vb.net 教程目录

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原文链接：https://blog.csdn.net/UruseiBest/article/details/80344540

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