多线程委托添加listview问题

水手

看过帖子回复一下是个好习惯

superai

在不熟悉的情况下，最后把new都赋值到变量里，别偷懒不声明变量。
看了下你贴的第二段代码，代码很快就能实现你想要的功能。
提示下，线程执行的函数里，需要定义委托，然后调用控件的invoke（好像是这么拼的）
我博客上也有多线程的简单实例，不过是VB.NET的............

ching126

我只是路过打酱油的。

我的命运啊

如果觉得委托烦的话可以酱紫
this.控件.Invoke(new Action(()=>
             {
                 //控件的操作
             }));

当然可以自定义个方法嘛 如:

private void TryInvoke(Action atcion)
{
        this.Invoke(()=>
        {
            action();
        }
}
调用的话:
TryInvoke(()=>
        {
             ///代码段
         });

duwenjie15

[C#] 纯文本查看 复制代码

using System;
using System.Threading;
using System.Windows.Forms;

namespace Text1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.listView1.View = View.Details;
            this.listView1.HeaderStyle = ColumnHeaderStyle.Clickable;
            this.listView1.Columns.Add("n1", -2);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            String Name = (sender as Button).Name;
            switch(Name)
            {
                case "button1": Thr_方法1(Name); break;
                case "button2": Thr_方法2(Name); break;
            }
        }

        delegate void Delegate_ListViewadd(string Str1);

        void Thr_方法1(String input)
        {
            Thread thread = new Thread(Thr_方法1_B);
            thread.IsBackground = true;
            thread.Start(input);
        }

        void Thr_方法1_B(object input)
        {
            for (int i = 0; i < 100; i++)
            {
                Thread.Sleep(1000);
                this.Invoke((EventHandler)(delegate
{
    listView1.Items.Add(input as string + ":" + i);
    listView1.Items[listView1.Items.Count - 1].EnsureVisible();
}));
            }
        }

        void Thr_方法2(String input)
        {
            Thread thread = new Thread(Thr_方法2_A);
            thread.IsBackground = true;
            thread.Start(input);
        }
        void Thr_方法2_A(object input)
        {
            Delegate_方法2_B的委托 s1 = new Delegate_方法2_B的委托(Thr_方法2_B);
            for (int i = 0; i < 100; i++)
            {
                Thread.Sleep(1000);
                this.Invoke(s1, input as string + ":" + i);
            }
        }
        delegate void Delegate_方法2_B的委托(String Str1);
        void Thr_方法2_B(String Str1)
        {
            listView1.Items.Add(Str1);
            listView1.Items[listView1.Items.Count - 1].EnsureVisible();
        }
    }
}

duwenjie15

下面是Demo
方法一是匿名委托写法
方法二是一般委托写法

[C#] 纯文本查看 复制代码

using System;
using System.Threading;
using System.Windows.Forms;

namespace Text1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.listView1.View = View.Details;
            this.listView1.HeaderStyle = ColumnHeaderStyle.Clickable;
            this.listView1.Columns.Add("n1", -2);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            String Name = (sender as Button).Name;
            switch(Name)
            {
                case "button1": Thr_方法1(Name); break;
                case "button2": Thr_方法2(Name); break;
            }
        }

        delegate void Delegate_ListViewadd(string Str1);

        void Thr_方法1(String input)
        {
            Thread thread = new Thread(Thr_方法1_B);
            thread.IsBackground = true;
            thread.Start(input);
        }

        void Thr_方法1_B(object input)
        {
            for (int i = 0; i < 100; i++)
            {
                Thread.Sleep(1000);
                this.Invoke((EventHandler)(delegate
{
    listView1.Items.Add(input as string + ":" + i);
    listView1.Items[listView1.Items.Count - 1].EnsureVisible();
}));
            }
        }

        void Thr_方法2(String input)
        {
            Thread thread = new Thread(Thr_方法2_A);
            thread.IsBackground = true;
            thread.Start(input);
        }
        void Thr_方法2_A(object input)
        {
            Delegate_方法2_B的委托 s1 = new Delegate_方法2_B的委托(Thr_方法2_B);
            for (int i = 0; i < 100; i++)
            {
                Thread.Sleep(1000);
                this.Invoke(s1, input as string + ":" + i);
            }
        }
        delegate void Delegate_方法2_B的委托(String Str1);
        void Thr_方法2_B(String Str1)
        {
            listView1.Items.Add(Str1);
            listView1.Items[listView1.Items.Count - 1].EnsureVisible();
        }
    }
}

lxb371855986

mark，说不定就会用到