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 584:                        	<tr>
Line 585:								<td colspan="3" valign="top">
Line 586:								<asp:Label ID="lbldescrizione" runat="server" Text='<%# IIf(Len(Eval("descrizione")) = 0, "", "<b>DESCRIZIONE</b>  <br />" & Eval("descrizione"))%>' />
Line 587:								&nbsp;<asp:Label ID="lblprofessioni" runat="server" Text='<%# IIf(Len(Eval("professioni")) = 0, "", "<br /><b>PROFESSIONI E DISCIPLINE </b> <br />" & Eval("professioni"))%>' />
Line 588:								&nbsp;<asp:Label ID="lbl_numero_crediti" runat="server" Text='<%# IIf(IsDBNull(Eval("numero_crediti")), "", "<br /><b>CREDITI ECM </b>" & Eval("numero_crediti"))%>' />

Source File: D:\inetpub\webs\acoiit\000_OLD\area_giallo\eventi_regionali_old.aspx    Line: 586

Stack Trace:


[InvalidCastException: Type mismatch.]
   Microsoft.VisualBasic.Strings.Len(Object Expression) +448913
   ASP._000_old_area_giallo_eventi_regionali_old_aspx.__DataBinding__control46(Object sender, EventArgs e) in D:\inetpub\webs\acoiit\000_OLD\area_giallo\eventi_regionali_old.aspx:586
   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