Server Error in '/' Application.

Value cannot be null.
Parameter name: source

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.ArgumentNullException: Value cannot be null.
Parameter name: source

Source Error:


Line 119:                                                            </td>
Line 120:                                                            <td>
Line 121:                                                                <asp:Label ID="Location_Label" runat="server" Text='<%#:Item.place.FirstOrDefault(a => a.language =="EN")?.content  %>' />, <asp:Label id="Area_Label" runat="server" Text='<%#:Item.region.FirstOrDefault(a => a.language == "EN")?.content %>' />
Line 122:                                                            </td>
Line 123:                                                         </tr>

Source File: C:\inetpub\wwwroot\trustedvillas\11\Controls\property\ihpd.ascx    Line: 121

Stack Trace:


[ArgumentNullException: Value cannot be null.
Parameter name: source]
   System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source, Func`2 predicate) +322
   ASP.controls_property_ihpd_ascx.__DataBinding__control26(Object sender, EventArgs e) in C:\inetpub\wwwroot\trustedvillas\11\Controls\property\ihpd.ascx:121
   System.Web.UI.Control.OnDataBinding(EventArgs e) +99
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +174
   System.Web.UI.Control.DataBindChildren() +249
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.Control.DataBindChildren() +249
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.Control.DataBindChildren() +249
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.Control.DataBindChildren() +249
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.WebControls.FormView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +2681
   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +97
   System.Web.UI.WebControls.FormView.PerformDataBinding(IEnumerable data) +16
   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +207
   System.Web.UI.WebControls.ModelDataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +104
   System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +134
   System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +107
   System.Web.UI.Control.EnsureChildControls() +130
   System.Web.UI.Control.PreRenderRecursiveInternal() +66
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7484


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4076.0