Occurrence of exception

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ASP.NET

HTML

C#5.0

I have form where I need to upload file and click on submit. If I try to upload a file of size more than 4095 bytes it going to an server error page

Server Error in '/' Application.

Maximum request length exceeded.

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.Web.HttpException: Maximum request length exceeded.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[HttpException (0x80004005): Maximum request length exceeded.]
System.Web.HttpRequest.GetEntireRawContent() +9726852
System.Web.HttpRequest.GetMultipartContent() +63
System.Web.HttpRequest.FillInFormCollection() +165
System.Web.HttpRequest.EnsureForm() +75
System.Web.HttpRequest.get_Form() +12
System.Web.HttpRequest.get_HasForm() +9728403
System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +95
System.Web.UI.Page.DeterminePostBackMode() +69
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +130

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34009

The above is the error I receive in browser when I try to upload file of larger size. I haven't specified the maximum size to be uploaded for the file but still I am getting getting the error. I also tried using try catch block to catch the exception but I am getting this error. I even tried to extend the default file size in ASP.NET using web.config and still it is not working. Can anyone please help me to fix this issue.

protected bool Save()
    {
        bool retVal = false;
        School thisSchool = null;
        SchoolService schoolsService = new SchoolService();
        
        if (SessionContents.CurrentSchool != null)
        {
            thisSchool = SessionContents.CurrentSchool;
        }
        else
        {
            return false;
        }
        DocumentRepository thisDocumentRepository = new DocumentRepository();

        if (thisDocumentRepository.SchoolRootFolderExists(thisSchool))
        {
           //Check if logo needs saving, i.e. if file upload has a file
            if (uxFileUpload.FileBytes.Length > 0)
            {
                 try
           {
                int fileSize = uxFileUpload.FileBytes.Count();

                string fileExt = System.IO.Path.GetExtension(uxFileUpload.FileName);
                fileExt = fileExt.Replace(".", "");

                if (!thisDocumentRepository.ValidSupportingDocument(fileExt))
                {
                    retVal = false;
                    string allowedDocType = thisDocumentRepository.AllowedFileTypeList();
                    
                    CustomValidator err = new CustomValidator();
                    err.ValidationGroup = "SaveFile";
                    err.IsValid = false;
                    err.ErrorMessage = "You did not select a valid file for this screen. Please only upload files of type: " + allowedDocType;
                    //if (fileSize > 1048576)
                    //{
                    //    err.ErrorMessage = "The maximun size has been extended";
                    //}
                    Page.Validators.Add(err);

                }
                
                else
                {
                    if (this.ObjectID == -1)
                    {
                        //save parent record stub
                        switch (this.DocumentFunctionalObjectType)
                        {
                            case DocumentRepository.DocumentFunctionalObjectType.Consultation:

                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.Issue:

                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.Initiative:

                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.Activity:

                               break;

                            case DocumentRepository.DocumentFunctionalObjectType.Star:

                               if (SessionContents.SelectedAcademicYear != null)
                               {
                                   
                               }
                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.YtaSignOff:

                                if (SessionContents.SelectedAcademicYear != null)
                                {
                                    SignOffService signOffsService = new SignOffService();
                                    SignOff newSignOff = signOffsService.CreateNewObject();

                                    newSignOff.SchoolID = thisSchool.SchoolID;
                                    newSignOff.AccreditationTypeID = 4;
                                    newSignOff.AcademicYearID = SessionContents.SelectedAcademicYear.AcademicYearID;
                                    newSignOff.YtaTravelPlan = true;
                                    newSignOff.Submitted = false;
                                    newSignOff.SignedOffBySchool = false;
                                    newSignOff.SignedOffByBorough = false;
                                    newSignOff.SignedOffByTfl = false;

                                    signOffsService.Save(newSignOff);

                                    this.ObjectID = (int)newSignOff.SignOffID;
                                }
                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.TravelPlan:
                                
                                break;

                            case DocumentRepository.DocumentFunctionalObjectType.CaseStudy:

                                break;
                        }
                    }
                    if (this.ObjectID != -1)
                    {
                        thisDocumentRepository.SaveSupportingDocument(uxFileUpload, this.DocumentFunctionalObjectType, thisSchool, this.ObjectID);
                        retVal = true;
                    }
                }
           }
                 catch (Exception ex)
                 {
                     System.Console.WriteLine("You have not specified a file.");
                     
                 }
            }
                   
          
            else
            {

                retVal = true;
            }
        }
        return retVal;
    }