Server Error in '/' Application.

Item has already been added. Key in dictionary: '07/08/2015 22:45:05'  Key being added: '07/08/2015 22:45:05'

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.ArgumentException: Item has already been added. Key in dictionary: '07/08/2015 22:45:05'  Key being added: '07/08/2015 22:45:05'

Source Error:


Line 66:          For Each localdir In dir.GetDirectories()
Line 67:           
Line 68:              slTemp.Add(CDate(localdir.CreationTime.ToString()), localdir.Name)
Line 69:                           
Line 70:          Next

Source File: D:\inetpub\webs\tipicait\photogallery.aspx    Line: 68

Stack Trace:


[ArgumentException: Item has already been added. Key in dictionary: '07/08/2015 22:45:05'  Key being added: '07/08/2015 22:45:05']
   System.Collections.SortedList.Add(Object key, Object value) +242
   ASP.index_aspx.RilevaTitolo() in D:\inetpub\webs\tipicait\photogallery.aspx:68
   ASP.index_aspx.__RenderForm1(HtmlTextWriter __w, Control parameterContainer) in D:\inetpub\webs\tipicait\photogallery.aspx:534
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +88
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +25
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +167
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +222
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +52
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +198
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +47
   ASP.index_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in D:\inetpub\webs\tipicait\header.aspx:166
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +88
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +25
   System.Web.UI.Page.Render(HtmlTextWriter writer) +30
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +52
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +198
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5796


Version Information: Microsoft .NET Framework Version:2.0.50727.8974; ASP.NET Version:2.0.50727.8974