想让普通用户可以设置sso凭证信息，在后台模拟了管理员来操作，也模拟成功了，Credentials.SetUserCredentials为什么还是报错？网上找了很多解决办法可都不行，没设辙了，望各位老大帮忙看看。。。。。。不胜感激！
---------------------------------------
环境：
1．win2k AD/win2k3 sharepoint2003/win2k database;
2．使用smartpart包装web usercontrol方式开发webpart.
3．实现功能是让用户修改密码的同时更新SSO凭证信息，顺序是先修改该用户的密码，然后设置凭证信息。
4. 已经在web空间中加入了FormDigest 和 SSOFormDigest控件。
5.web.config 中加入了
<SafeControl Assembly="Microsoft.SharePoint.Portal.SingleSignon.Security.SingleSignonPermission, Version=11.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" Namespace="Microsoft.SharePoint.Portal.SingleSignon.Security" TypeName="*" />
6.在onInite() 中加入了 SSOCanaryChecker.AddCanary(this.Page)
--------------------------------------------------------------------------------------
错误1（未模拟）：
Exception Code: 0x80630005Source: Microsoft.SharePoint.Portal.SingleSignonStackTrace: at Microsoft.SharePoint.Portal.SingleSignon.Credentials.SetUserCredentials(String strApplicationName, String strUserAccount, Object[] Args) at Inspur.EIP.Portal.WEB._layouts.PortalAD.ChangePassword.btnModify_Click(Object sender, EventArgs e) in d:\EIPSolution\WEB\_layouts\PortalAD\ChangePassword.ascx.cs:line 94MethodName: SetUserCredentialsMessage: 应用程序中的错误。
错误2（模拟）：
模拟用户：CCDC\eipadmin
当前用户：CCDC\testuser
NewSite之后的当前拥护：CCDC\eipadmin
设置凭证到SSO出错
Exception Code: 0x8062ffffSource: Microsoft.SharePoint.Portal.SingleSignonStackTrace: at Microsoft.SharePoint.Portal.SingleSignon.SSOCanaryChecker.b() at Microsoft.SharePoint.Portal.SingleSignon.SSOCanaryChecker.b() at Microsoft.SharePoint.Portal.SingleSignon.Credentials.SetUserCredentials(String strApplicationName, String strUserAccount, Object[] Args) at Inspur.EIP.Portal.WEB._layouts.PortalAD.ChangePassword.btnModify_Click(Object sender, EventArgs e)MethodName: bMessage: 应用程序中的错误。
代码：
try
{
string[] rgSetCredentialData = new string[3];
rgSetCredentialData[0] = username;
rgSetCredentialData[1] = pwd1;
rgSetCredentialData[2] = "domain";
// Change the context
WindowsIdentity objIdentity = CreateIdentity("eipadmin", "domain", "******");
WindowsImpersonationContext objContext = null;
objContext = objIdentity.Impersonate();
// Perform actions that require higher permission level
System.Web.HttpContext.Current.Response.Write( "<br>模拟用户：" +
System.Security.Principal.WindowsIdentity.GetCurrent().Name );
SPWeb web = SPControl.GetContextWeb( System.Web.HttpContext.Current );
System.Web.HttpContext.Current.Response.Write("<br>当前用户：" + web.CurrentUser );
SPSite site = new SPSite( "http://eip/C19/密码修改/default.aspx" );
SPWeb web1 = site.OpenWeb();
System.Web.HttpContext.Current.Response.Write("<br>NewSite之后的当前拥护：" + web1.CurrentUser );
Credentials.SetUserCredentials(
"webapp",
"domain\\" + username,
rgSetCredentialData);
objContext.Undo();
}
catch (SingleSignonException esso)
{
System.Web.HttpContext.Current.Response.Write("<br>设置凭证到SSO出错<br>" );
System.Web.HttpContext.Current.Response.Write("Exception Code: " + "0x" + esso.LastErrorCode.ToString("x"));
System.Web.HttpContext.Current.Response.Write("Source: " + esso.Source);
System.Web.HttpContext.Current.Response.Write("StackTrace: " + esso.StackTrace);
System.Web.HttpContext.Current.Response.Write("MethodName: " + esso.TargetSite.Name);
System.Web.HttpContext.Current.Response.Write("Message: " + esso.Message);
}
catch( Exception ex )
{
System.Web.HttpContext.Current.Response.Write(
"<br>设置凭证到SSO出错<br>" + ex.Message +
"<br>" + ex.Source +
"<br>" + ex.StackTrace +
"<br>" + ex.TargetSite );
}
