求助！ 关于Asp.net 站点地图程序异常
求牛人指导。。。程序
protected void Page_Load(object sender, EventArgs e)
{
SiteMap.Provider.SiteMapResolve += new SiteMapResolveEventHandler(SiteMap_SiteMapResolve);
MySiteMapNode.MySiteMapNodeInit(Server.MapPath("/StaticConfig.xml"));
}
private SiteMapNode SiteMap_SiteMapResolve(Object sender, SiteMapResolveEventArgs e)
{
if (SiteMap.Provider==null || SiteMap.CurrentNode == null)
return null;
SiteMapNode currentNode = SiteMap.CurrentNode.Clone(true);
SiteMapNode tempNode = currentNode;
LinkedList<SiteMapNode> pathNode = GetPathNodeUrlByNode(tempNode);
query = HttpContext.Current.Request.QueryString;
MessageContract contacte = new MessageContract();
if (this.MyPage.Language == LanguageType.Chinese)
contacte.Header.Language = "CN";
if (query != null && MySiteMapNode.MapList!=null && pathNode!=null)
{
foreach (MySiteMapNode node in MySiteMapNode.MapList)
{
foreach (SiteMapNode pnode in pathNode)
{
if (pnode.Url.ToLower() == node.Url.ToLower())
{
contacte.Body = pnode.Title;
pnode.Url = node.ProcessUrl(query);
pnode.Title = node.Processdescription(contacte, query);
break;
}
}
}
}
return tempNode;
}
网站出的异常是：
System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object. at NewGasgoo.Web.MyGasgoo.Themes.Default.Skin.Public.UC_Public_Nav.SiteMap_SiteMapResolve(Object sender, SiteMapResolveEventArgs e) at System.Web.SiteMapProvider.ResolveSiteMapNode(HttpContext context) at System.Web.SiteMapProvider.get_CurrentNode() at System.Web.SiteMapProvider.GetCurrentNodeAndHintAncestorNodes(Int32 upLevel) at System.Web.UI.WebControls.SiteMapPath.CreateControlHierarchy() at System.Web.UI.WebControls.SiteMapPath.CreateChildControls() at System.Web.UI.Control.EnsureChildControls() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.default_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --------------------编程问答-------------------- 有没有高手在呀？
补充：.NET技术 , ASP.NET
