Server Error in '/' Application.

Type mismatch.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: Type mismatch.

Source Error:


Line 456:						<div class="g-etichetta02 nascondi-mobile">DESCRIZIONE</div>
Line 457:						<div class="g-contenuto02 nascondi-mobile">
Line 458:						<i><asp:Label ID="lbldescrizione02" runat="server" Text='<%# IIf(Len(Eval("descrizione")) = 0, "", "" & Eval("descrizione") & "<br>")%>' /></i>
Line 459:						<asp:Label ID="lblprofessioni02" runat="server" Text='<%# IIf(Len(Eval("professioni")) = 0, "", "<b>Professioni e discipline </b>" & Eval("professioni") & "<br>")%>' />	
Line 460:						<asp:Label ID="lbl_numero_partecipanti" runat="server" Text='<%# IIf(IsDBNull(Eval("numero_partecipanti")), "", "<b>Partecipanti </b>" & Eval("numero_partecipanti"))%>' />

Source File: D:\inetpub\webs\acoiit\site\03_formazione\110_eventi_formativi_dettaglio.aspx    Line: 458

Stack Trace:


[InvalidCastException: Type mismatch.]
   Microsoft.VisualBasic.Strings.Len(Object Expression) +448913
   ASP.site_03_formazione_110_eventi_formativi_dettaglio_aspx.__DataBinding__control21(Object sender, EventArgs e) in D:\inetpub\webs\acoiit\site\03_formazione\110_eventi_formativi_dettaglio.aspx:458
   System.Web.UI.Control.OnDataBinding(EventArgs e) +86
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +154
   System.Web.UI.Control.DataBind() +17
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +164
   System.Web.UI.Control.DataBind() +17
   System.Web.UI.WebControls.DataList.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +138
   System.Web.UI.WebControls.DataList.CreateControlHierarchy(Boolean useDataSource) +659
   System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) +65
   System.Web.UI.WebControls.BaseDataList.DataBind() +84
   System.Web.UI.WebControls.BaseDataList.EnsureDataBound() +62
   System.Web.UI.WebControls.BaseDataList.CreateChildControls() +71
   System.Web.UI.Control.EnsureChildControls() +97
   System.Web.UI.Control.PreRenderRecursiveInternal() +42
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +906


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0