线程间操作无效-创新互联

方法一：

public Form1()
{
InitializeComponent();
CheckForIllegalCrossThreadCalls = false;
}

方法二：

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

 namespace TestingUIThread
 {
    public partial class Form1 : Form
    {
        Thread thread = null;

        public Form1()
        {

            InitializeComponent();
        }

        private void btnEnable_Click(object sender, EventArgs e)
        {
            thread = new Thread(new ParameterizedThreadStart(EnableButton));
            thread.Start(null);
        }

        private void EnableButton(object o)
        {
            EnableButton();
        }

        private delegate void EnableButtonCallBack();

        private void EnableButton()
        {
            if (this.btnTest.InvokeRequired)
            {
                this.Invoke(new EnableButtonCallBack(EnableButton));
            }
            else
            {
                btnTest.Enabled = true;
                btnTest.Text = "Enabled";
            }
        }
    }
 }

方法三： 通过ISynchronizeInvoke和MethodInvoker.

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

 namespace TestingUIThread
 {
    public partial class Form1 : Form
    {
        Thread thread = null;

        public Form1()
        {
            InitializeComponent();
        }

        private void btnEnable_Click(object sender, EventArgs e)
        {
            thread = new Thread(new ParameterizedThreadStart(MyEnableButton));
            thread.Start(null);
        }

        private void MyEnableButton(object sender)
        {
            ISynchronizeInvoke synchronizer = this;

            if (synchronizer.InvokeRequired)
            {
                MethodInvoker minvoker = new MethodInvoker(this.EnableButton);
                synchronizer.Invoke(minvoker, null);
            }
            else
            {
                this.EnableButton();
            }
        }

        private void EnableButton()
        {
            btnTest.Enabled = true;
            btnTest.Text = "Enabled";
        }
    }
 }

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