To reproduce:
1. Add forum module to a page
2. Create some forums
3. Click "edit notifications" link
An exception is thrown:
2007-02-12 16:34:37,723 [3248] ERROR mojoPortal.Web.Global [(null)] - /ForumModuleEditSubscriptions.aspx?mid=128&pageid=66
System.InvalidCastException: Object cannot be cast from DBNull to other types.
at System.DBNull.System.IConvertible.ToDateTime(IFormatProvider provider)
at System.Convert.ToDateTime(Object value)
at ASP.forummoduleeditsubscriptions_aspx.__DataBind__control7(Object sender, EventArgs e) in c:\Inetpub\wwwroot\mojoportal\ForumModuleEditSubscriptions.aspx:line 53
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem)
at System.Web.UI.WebControls.Repeater.CreateControlHierarchy(Boolean useDataSource)
at System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e)
at System.Web.UI.WebControls.Repeater.DataBind()
at mojoPortal.Web.ForumUI.ForumModuleEditSubscriptions.PopulateControls()
at mojoPortal.Web.ForumUI.ForumModuleEditSubscriptions.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)