[InvalidCastException: Operator '<>' is not defined for type 'DBNull' and string "".]
Microsoft.VisualBasic.CompilerServices.Operators.CompareObjectNotEqual(Object Left, Object Right, Boolean TextCompare) +1319836
dokumentendetail.Page_Load(Object sender, EventArgs e) in E:\www\vhosts\uvs.ch\httpdocs\dokumentendetail.aspx.vb:51
System.Web.UI.Control.OnLoad(EventArgs e) +97
System.Web.UI.Control.LoadRecursive() +61
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693
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