c# 委托模板 用来 更新控件，控件线程占用问题
private void InitializeEvents()
{
AppEvents.Instance.UpdateConnectionStatusEvent += UpdateStatus;
AppEvents.Instance.UpdateScreenEvent += LogToScreen;
}
private delegate void RefreshAgentStatus(AgentStatus status);
private delegate void FlushOutPut(string msg);
public void UpdateStatus(AgentStatus status)
{
if (lblResult.InvokeRequired || pnlResultColor.InvokeRequired)
{
var refresh = new RefreshAgentStatus(UpdateStatus);
this.Invoke(refresh, new object[] { status });
}
else
{
if (status == AgentStatus.ONLINE)
{
if (!string.Equals(lblResult.Text, status.ToString()))
{
lblResult.Text = status.ToString();
pnlResultColor.BackColor = System.Drawing.Color.LimeGreen;
pnlResultColor.ForeColor = System.Drawing.Color.Black;
}
}
else
{
if (status == AgentStatus.ERROR || status == AgentStatus.OFFLINE)
{
if (!string.Equals(lblResult.Text, status.ToString()))
{
lblResult.Text = status.ToString();
pnlResultColor.BackColor = System.Drawing.Color.Red;
pnlResultColor.ForeColor = System.Drawing.Color.White;
}
}
else
{
//lbStatus.Text = status.ToString();
//lbStatus.BackColor = System.Drawing.Color.LimeGreen;
//lbStatus.ForeColor = System.Drawing.Color.Black;
}
}
}
}
private void LogToScreen(string st)
{
if (this.richLog.InvokeRequired)
{
var flush = new FlushOutPut(LogToScreen);
this.Invoke(flush, new object[] { st });
}
else
{
var msg = string.Format("{0} {1}", DateTime.Now.ToString("yyyyMMdd HHmmss"), st);
if (richLog.Text.Length >= 500)
{
var index = richLog.Text.Length;
richLog.Text = (st + "\r\n" + richLog.Text).Substring(0, 500);
}
else
{
richLog.Text = (st + "\r\n" + richLog.Text);
}
}
}
namespace RunAsCiMation
{
public class AgentStatus
{
internal static readonly AgentStatus ERROR;
internal static readonly AgentStatus OFFLINE;
internal static readonly AgentStatus ONLINE;
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace RunAsCiMation
{
public class AppEvents
{
private static AppEvents instance = null;
private AppEvents()
{
}
public static AppEvents Instance
{
get
{
if (instance == null)
instance = new AppEvents();
return instance;
}
}
public delegate void UpdateScreenEventHandler(string msg); //委托声明 sunjie 1
public delegate void UpdateConnectionStatusEventHandler(AgentStatus status);
public UpdateScreenEventHandler OnUpdateScreenRun; //创建委托对象 sunjie 2
public UpdateConnectionStatusEventHandler OnUpdateConnectionStatusRun;
public event UpdateScreenEventHandler UpdateScreenEvent
{
add
{
OnUpdateScreenRun = (UpdateScreenEventHandler)System.Delegate.Combine(OnUpdateScreenRun, value);
}
remove
{
OnUpdateScreenRun = (UpdateScreenEventHandler)System.Delegate.Remove(OnUpdateScreenRun, value);
}
}
public event UpdateConnectionStatusEventHandler UpdateConnectionStatusEvent
{
add
{
OnUpdateConnectionStatusRun = (UpdateConnectionStatusEventHandler)Delegate.Combine(OnUpdateConnectionStatusRun, value);
}
remove
{
OnUpdateConnectionStatusRun = (UpdateConnectionStatusEventHandler)Delegate.Remove(OnUpdateConnectionStatusRun, value);
}
}
}
AppEvents Class
}
public class AppEvents { private static AppEvents instance = null; private AppEvents() { } public static AppEvents Instance { get { if (instance == null) instance = new AppEvents(); return instance; } } public delegate void UpdateScreenEventHandler(string msg); //委托声明 sunjie 1 public delegate void UpdateConnectionStatusEventHandler(AgentStatus status); public UpdateScreenEventHandler OnUpdateScreenRun; //创建委托对象 sunjie 2 public UpdateConnectionStatusEventHandler OnUpdateConnectionStatusRun; public event UpdateScreenEventHandler UpdateScreenEvent { add { OnUpdateScreenRun = (UpdateScreenEventHandler)System.Delegate.Combine(OnUpdateScreenRun, value); } remove { OnUpdateScreenRun = (UpdateScreenEventHandler)System.Delegate.Remove(OnUpdateScreenRun, value); } } public event UpdateConnectionStatusEventHandler UpdateConnectionStatusEvent { add { OnUpdateConnectionStatusRun = (UpdateConnectionStatusEventHandler)Delegate.Combine(OnUpdateConnectionStatusRun, value); } remove { OnUpdateConnectionStatusRun = (UpdateConnectionStatusEventHandler)Delegate.Remove(OnUpdateConnectionStatusRun, value); } } }
private delegate void RefreshAgentStatus(AgentStatus status); private delegate void FlushOutPut(string msg);
private void InitializeEvents() { AppEvents.Instance.UpdateConnectionStatusEvent += UpdateStatus; AppEvents.Instance.UpdateScreenEvent += LogToScreen; }
public void UpdateStatus(AgentStatus status) { if (lbStatus.InvokeRequired) { var refresh = new RefreshAgentStatus(UpdateStatus); this.Invoke(refresh, new object[] { status }); } else { if (status == AgentStatus.ONLINE) { if (!string.Equals(lbStatus.Text, status.ToString())) { lbStatus.Text = status.ToString(); lbStatus.BackColor = System.Drawing.Color.LimeGreen; lbStatus.ForeColor = System.Drawing.Color.Black; } } else { if (status == AgentStatus.ERROR || status == AgentStatus.OFFLINE) { if (!string.Equals(lbStatus.Text, status.ToString())) { lbStatus.Text = status.ToString(); lbStatus.BackColor = System.Drawing.Color.Red; lbStatus.ForeColor = System.Drawing.Color.White; } } else { //lbStatus.Text = status.ToString(); //lbStatus.BackColor = System.Drawing.Color.LimeGreen; //lbStatus.ForeColor = System.Drawing.Color.Black; } } } } private void LogToScreen(string st) { if (this.richLog.InvokeRequired) { var flush = new FlushOutPut(LogToScreen); this.Invoke(flush, new object[] { st }); } else { var msg = string.Format("{0} {1}", DateTime.Now.ToString(Settings.NormalDateTimeFormatDash), st); if (richLog.Text.Length >= 500) { var index = richLog.Text.Length; richLog.Text = (st + "\r\n" + richLog.Text).Substring(0, 500); } else { richLog.Text = (st + "\r\n" + richLog.Text); } } }
private void writeLogToText(string strlog = "") { AppEvents.Instance.OnUpdateScreenRun(strlog); //richLog.Text = richLog.Text + strlog + " \r\n"; }
