WAO IndexOutOfRangeException: Index was outside the bounds of the array Error

1/4/2016 3:52:26 PM

50 Reputation 7 Total posts

Site got hammered over the weekend, users were getting this error

System.Collections.Generic.List`1+Enumerator.MoveNext():35

..(String requestDomain):158

MonoSoftware.Web.WAO.ViewState.Configuration.ViewStateConfiguration.GetPageStatePersister(Page page):47

Medportal.Sitefinity.Controls.Code.CustomViewStatePage.get_PageStatePersister() in C:\Medportal\Master\Medportal.Sitefinity.Controls\Code\CustomViewStatePage.cs:24

System.Web.UI.Page.RegisterRequiresControlState(Control control):105

Telerik.Web.UI.RadListView.OnInit(EventArgs e):21

System.Web.UI.Control.InitRecursive(Control namingContainer):255

System.Web.UI.Control.InitRecursive(Control namingContainer):143

System.Web.UI.Control.AddedControl(Control control, Int32 index):194

System.Web.UI.Control.EnsureChildControls():70

System.Web.UI.Control.PreRenderRecursiveInternal():47

System.Web.UI.Control.PreRenderRecursiveInternal():142

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint):1747

This is the class

public class CustomViewStatePage : System.Web.UI.Page

{

private System.Web.UI.PageStatePersister _pageStatePersister = null;

protected override System.Web.UI.PageStatePersister PageStatePersister

{

get

{

if (_pageStatePersister == null)

_pageStatePersister = ViewStateConfiguration.GetPageStatePersister(this.Page);

return _pageStatePersister;

}

protected override object LoadPageStateFromPersistenceMedium()

{

try

{

return base.LoadPageStateFromPersistenceMedium();

}

catch (Exception ex)

{

//Handle the missing viewstate by returning the empty state pair

System.Web.UI.PageStatePersister pageStatePersister = new System.Web.UI.HiddenFieldPageStatePersister(this.Page);

Debug.WriteLine(ex);

return new System.Web.UI.Pair(pageStatePersister.ControlState, pageStatePersister.ViewState);

}

We are using the DB persisted config... any idea what the problem might have been? Was the DB down or something maybe? ...can the error be elegantly handled somehow?

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Mono Support WAO IndexOutOfRangeException: Index was outside the bounds of the array Error