using Microsoft.SharePoint.WebControls;
using Microsoft.Web.UI.WebControls;
private void Button1_Click(object sender, System.EventArgs e)
??{
???//模擬用戶
???//WindowsImpersonationContext wic = CreateIdentity("ssa_sps03","paicdom","spstestA1").Impersonate();
???List list = new List();
???list.AddList(tb_NewsTitle.Text);
???//wic.Undo();
??}

??protected static WindowsIdentity CreateIdentity(string User, string Domain, string Password)
??{
???// The Windows NT user token.
???IntPtr tokenHandle = new IntPtr(0);

???const int LOGON32_PROVIDER_DEFAULT = 0;
???const int LOGON32_LOGON_NETWORK = 3;

???tokenHandle = IntPtr.Zero;

???// Call LogonUser to obtain a handle to an access token.
???bool returnValue = LogonUser(User, Domain, Password,
????LOGON32_LOGON_NETWORK, LOGON32_PROVIDER_DEFAULT,
????ref tokenHandle);

???if (false == returnValue)
???{
????int ret = Marshal.GetLastWin32Error();
????throw new Exception("LogonUser failed with error code: " +? ret);
???}

???System.Diagnostics.Debug.WriteLine("Created user token: " + tokenHandle);

???//The WindowsIdentity class makes a new copy of the token.
???//It also handles calling CloseHandle for the copy.
???WindowsIdentity id = new WindowsIdentity(tokenHandle);
???CloseHandle(tokenHandle);
???return id;
??}

??[DllImport("advapi32.dll", SetLastError=true)]
??private static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword,
???int dwLogonType, int dwLogonProvider, ref IntPtr phToken);

??[DllImport("kernel32.dll", CharSet=CharSet.Auto)]
??private extern static bool CloseHandle(IntPtr handle);
?}