如何通過線程爲標籤設置值？

Question

此代碼給出錯誤'對象引用未設置爲對象的實例'。

public partial class _Default : System.Web.UI.Page 
{ 
    protected void Page_Load(object sender, EventArgs e) 
    { 
     _Default obj = new _Default(); 
     Thread thread = new Thread(new ThreadStart(obj.ThreadStart)); 
     thread.Start(); 

    } 
    public void ThreadStart() 
    { 
     show(); 
    } 
    private void show() 
    { 
     lblget.Text = "hi"; 
    } 

Answer 1

無需創建_Default的實例。

protected void Page_Load(object sender, EventArgs e) 
    { 
     Thread thread = new Thread(show); 
     thread.Start(); 
    } 
    private void show() 
    { 
     lblget.Text = "hi"; 
    } 

閱讀這些文章 - Use Threads and Build Asynchronous Handlers in Your Server-Side Web Code和PageAsyncTask.