Occasionally we see following error and when user login again it goes away. We are using following code. There are around 3-4 users out of 1000 who actually encounter this issue that too did not encounter it again.
if (!Page.IsPostBack)
{
string _menu = string.Empty;
try
{
if (_isAuthorized)
{
_menu = Session["Menu"] as string;
if (string.IsNullOrEmpty(_menu))
{
DateTime _startTime = DateTime.Now;
_menu = _adapter.GetMenu(_userName, _applicationName, _regionName);
DateTime _endTime = DateTime.Now;
TimeSpan ts = new TimeSpan(_endTime.Ticks - _startTime.Ticks);
double ms = ts.Milliseconds;
Trace.Warn("Total milliseconds taken to fetch MENU " + ms.ToString() + " milliseconds");
Session["Menu"] = _menu;
}
if (!string.IsNullOrEmpty(_menu))
{
xmlDataSource = new XmlDataSource();
xmlDataSource.Data = _menu;
xmlDataSource.EnableCaching = false;
if (this.IsTreeView)
{
treeViewAdmin.DataSource = xmlDataSource;
treeViewAdmin.DataBind();
TreeNode cognosRpt = new TreeNode();
cognosRpt.Text = "Cognos Reporting";
cognosRpt.NavigateUrl = ConfigurationManager.AppSettings.Get("CognosReportingURL");
cognosRpt.Target = "_blank";
TreeNode refDoc = new TreeNode();
refDoc.Text = "Reference Documents";
TreeNode chAEFP = new TreeNode();
chAEFP.Text = "AEFP 7.02";
chAEFP.NavigateUrl = ConfigurationManager.AppSettings.Get("AEFPURL");
chAEFP.Target = "_blank";
TreeNode chCFT = new TreeNode();
chCFT.Text = "CFT Online";
chCFT.NavigateUrl = ConfigurationManager.AppSettings.Get("CFTURL");
chCFT.Target = "_blank";
TreeNode chProcessDoc = new TreeNode();
chProcessDoc.Text = "Process Documents";
chProcessDoc.NavigateUrl = ConfigurationManager.AppSettings.Get("ProcessDocURL");
chProcessDoc.Target = "_blank";
refDoc.ChildNodes.Add(chAEFP);
refDoc.ChildNodes.Add(chCFT);
refDoc.ChildNodes.Add(chProcessDoc);
treeViewAdmin.Nodes.Add(cognosRpt);
treeViewAdmin.Nodes.Add(refDoc);
treeViewAdmin.Enabled = true;
menuAdmin.Enabled = false;
}
else
{
menuAdmin.DataSource = xmlDataSource;
menuAdmin.MaximumDynamicDisplayLevels = 20;
menuAdmin.DataBind();
MenuItem mnCognosRpt = new MenuItem("Cognos Reporting", "Cognos", "",
ConfigurationManager.AppSettings.Get("CognosReportingURL"), "_blank");
menuAdmin.Items.Add(mnCognosRpt);
MenuItem mnRefDoc = new MenuItem("Reference Documents");
MenuItem mnchAEFP = new MenuItem("AEFP 7.02", "AEFP", "",
ConfigurationManager.AppSettings.Get("AEFPURL"), "_blank");
MenuItem mnchACFT = new MenuItem("CFT Online", "CFT", "",
ConfigurationManager.AppSettings.Get("CFTURL"), "_blank");
MenuItem mnchProcessDoc = new MenuItem("Process Documents", "ProcessDoc", "",
ConfigurationManager.AppSettings.Get("ProcessDocURL"), "_blank");
mnRefDoc.ChildItems.Add(mnchAEFP);
mnRefDoc.ChildItems.Add(mnchACFT);
mnRefDoc.ChildItems.Add(mnchProcessDoc);
menuAdmin.Items.Add(mnRefDoc);
menuAdmin.Enabled = true;
treeViewAdmin.Enabled = false;
}
}
}
}
I am also attaching trace log for the same.
<Message> Error Information
-------------------- 1 Exception Details
-------------------- Error Code :5015 Severity Code :4
Message :There are multiple root elements. Line 1,
position 205. Error Type ystem.Xml.XmlException Source
ystem.Xml Stack trace -------------------- at
System.Xml.XmlTextReaderImpl.ThrowException e at
System.Xml.XmlTextReaderImpl.ThrowString res, String arg
at System.Xml.XmlTextReaderImpl.ThrowInt32 pos, String res
at System.Xml.XmlTextReaderImpl.ParseDocumentContent at
System.Xml.XmlTextReaderImpl.Read at
System.Xml.XmlLoader.LoadDocSequenceXmlDocument parentDoc
at System.Xml.XmlLoader.LoadXmlDocument doc, XmlReader
reader, Boolean preserveWhitespace at
System.Xml.XmlDocument.LoadXmlReader reader
at
System.Web.UI.WebControls.XmlDataSource.PopulateXmlDocumen
tXmlDocument document, CacheDependency&
dataCacheDependency, CacheDependency&
transformCacheDependency at
System.Web.UI.WebControls.XmlDataSource.GetXmlDocument at
System.Web.UI.WebControls.XmlHierarchicalDataSourceView.Se
lect at
System.Web.UI.WebControls.TreeView.DataBindNodeTreeNode
node at
System.Web.UI.WebControls.TreeView.PerformDataBinding at
System.Web.UI.WebControls.HierarchicalDataBoundControl.Per
formSelect at
System.Web.UI.WebControls.BaseDataBoundControl.DataBind at
System.Web.UI.WebControls.TreeView.DataBind at
AmericanExpress.Attestation.WP.MasterPage.Page_LoadObject
sender, EventArgs e </Message>
Any guess why it happens?
Looking forward for some greate replies.
Thanks in advance.
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