我使用ClickOnce安装部署了我的C#WinForms应用程序。一切都运行良好(经过大量的工作):),但现在我遇到了一个问题:
每当我单击“开始”菜单中的应用程序快捷方式时,都会启动一个新实例。我需要避免这种情况。
如何防止多次发布?
答案 0 :(得分:33)
在程序启动时检查相同的进程是否已在运行:
using System.Diagnostics;
static void Main(string[] args)
{
String thisprocessname = Process.GetCurrentProcess().ProcessName;
if (Process.GetProcesses().Count(p => p.ProcessName == thisprocessname) > 1)
return;
}
答案 1 :(得分:26)
使用此代码:
[STAThread]
static void Main()
{
using(Mutex mutex = new Mutex(false, "Global\\" + appGuid))
{
if(!mutex.WaitOne(0, false))
{
MessageBox.Show("Instance already running");
return;
}
Application.Run(new Form1());
}
}
答案 2 :(得分:3)
关于这个问题确实很好。您可以在此处找到它:using Mutext。
答案 3 :(得分:2)
有些时候**Mutex**
无效。喜欢在控制台应用中使用。所以我尝试使用 WMI查询。
试试这个,它会起作用。
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
if (!isStillRunning())
{
Application.Run(new Form1());
}
else {
MessageBox.Show("Previous process still running.",
"Application Halted", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
Application.Exit();
}
}
//***Uses WMI Query
static bool isStillRunning() {
string processName = Process.GetCurrentProcess().MainModule.ModuleName;
ManagementObjectSearcher mos = new ManagementObjectSearcher();
mos.Query.QueryString = @"SELECT * FROM Win32_Process WHERE Name = '" + processName + @"'";
if (mos.Get().Count > 1)
{
return true;
}
else
return false;
}
希望它有所帮助。
答案 4 :(得分:2)
在WPF中,您可以在App.xaml.cs
文件中使用此代码:
private static System.Threading.Mutex _mutex = null;
protected override void OnStartup(StartupEventArgs e)
{
string mutexId = ((System.Runtime.InteropServices.GuidAttribute)System.Reflection.Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(System.Runtime.InteropServices.GuidAttribute), false).GetValue(0)).Value.ToString();
_mutex = new System.Threading.Mutex(true, mutexId, out bool createdNew);
if (!createdNew) Current.Shutdown();
else Exit += CloseMutexHandler;
base.OnStartup(e);
}
protected virtual void CloseMutexHandler(object sender, EventArgs e)
{
_mutex?.Close();
}
答案 5 :(得分:1)
启动应用程序时,main始终会调用Application.Run()
。查看您的STAThread-Main方法,并在Application.Run
测试之前,如果有.exe的运行实例。
Process p = Process.GetProcesses();
//check for your .exe
请在此处发帖this。
答案 6 :(得分:0)
我一直在使用的是
bool checkSingleInstance()
{
string procName = Process.GetCurrentProcess().ProcessName;
// get the list of all processes by that name
Process[] processes = Process.GetProcessesByName(procName);
if (processes.Length > 1)
{
return true;
}
else
{
return false;
}
}
答案 7 :(得分:0)
解决方案禁止再次运行应用程序(重新打开应用程序)。
1-首先添加Class RunAlready.cs
2-Call方法processIsRunning(),带有来自Program.cs中RunAlready.cs的Name Process
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Tirage.MainStand
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
PublicClass.Class.RunAlready RunAPP = new PublicClass.Class.RunAlready();
string outApp = RunAPP.processIsRunning("Tirage.MainStand");
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
MainStand_FrmLogin fLogin = new MainStand_FrmLogin();
if (outApp.Length == 0)
{
if (fLogin.ShowDialog() == DialogResult.OK)
{
Application.Run(new MainStand_masterFrm());
}
}
else MessageBox.Show( "Instance already running");
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace PublicClass.Class
{
public class RunAlready
{
public string processIsRunning(string process)
{
string xdescription = "";
System.Diagnostics.Process[] processes =
System.Diagnostics.Process.GetProcessesByName(process);
foreach (System.Diagnostics.Process proc in processes)
{
var iddd = System.Diagnostics.Process.GetCurrentProcess().Id;
if (proc.Id != System.Diagnostics.Process.GetCurrentProcess().Id)
{
xdescription = "Application Run At time:" + proc.StartTime.ToString() + System.Environment.NewLine;
xdescription += "Current physical memory : " + proc.WorkingSet64.ToString() + System.Environment.NewLine;
xdescription += "Total processor time : " + proc.TotalProcessorTime.ToString() + System.Environment.NewLine;
xdescription += "Virtual memory size : " + proc.VirtualMemorySize64.ToString() + System.Environment.NewLine;
}
}
return xdescription;
}
}
}
答案 8 :(得分:0)
if (Process.GetProcesses().Count(p => p.ProcessName == "exe name") > 1)
{
foreach (var process in
Process.GetProcessesByName("exe name"))
{
process.Kill();
}
}
答案 9 :(得分:-3)
使用Mutex
是可行的方法,因为猜测进程名称充满了缺陷和琐事。看看这个非常好illustration