ϢͣDbEntityValidationException
ϢݣһwCʧPԔϢՈҊEntityValidationErrors
lķInt32 SaveChanges()
lԴEntityFramework System.Data.Entity.Internal.InternalContext.SaveChanges()
AutoWebSite10.BaseClass.Visitors.Record(HttpRequest request)
AutoWebSite10.Pages.Page_Load(Object sender, EventArgs e)
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Control.LoadRecursive()
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