AsyncUpload gives exception "The given key was not present in the dictionary"

1 posts, 0 answers
  1. Muhahammad
    Muhahammad avatar
    8 posts
    Member since:
    Jan 2012

    Posted 16 Dec 2012 Link to this post

    we are actually facing a problem when ever uploading occasionaly and we don't know the cause, please help us in this, below is a description of the exception we have.

    The given key was not present in the dictionary.   at System.ThrowHelper.ThrowKeyNotFoundException()     at System.Collections.Generic.Dictionary`2.get_Item(TKey key)     at Telerik.Web.UI.AsyncUpload.AsyncUploadClientStateConverter.Deserialize(IDictionary`2 dictionary, Type type, JavaScriptSerializer serializer)     at System.Web.Script.Serialization.ObjectConverter.ConvertDictionaryToObject(IDictionary`2 dictionary, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)     at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)     at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)     at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToType(Object o, Type type, JavaScriptSerializer serial

    Stack Trace: 
       at System.Web.UI.Page.HandleError(Exception e)     at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)     at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)     at System.Web.UI.Page.ProcessRequest()     at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)     at System.Web.UI.Page.ProcessRequest(HttpContext context)     at ASP.attachments_aspx.ProcessRequest(HttpContext context)     at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()     at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
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