[ArgumentOutOfRangeException: 'dlSeries' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value]
System.Web.UI.WebControls.ListControl.PerformDataBinding(IEnumerable dataSource) +1324
System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +384
System.Web.UI.WebControls.ListControl.PerformSelect() +43
series.binddlSeries(Int32 catid) in c:\inetpub\vhosts\elmex.net\httpdocs\series.aspx.cs:327
series.Page_Load(Object sender, EventArgs e) in c:\inetpub\vhosts\elmex.net\httpdocs\series.aspx.cs:211
System.Web.UI.Control.OnLoad(EventArgs e) +106
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
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