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Old March 18th, 2008, 04:58 AM
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Default Problem to upload file

hi friends

i am using FileUpload control to upload file but when i trying to upload file which size more than 50mb it is showing me error. Can anybody help me to solve this prob? i have also tried ftprequest object it is uploading 100mb files but sometime it is showing me buffer full error so how i can manage it?

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Old March 25th, 2008, 07:36 AM
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There are 2 things at play when you are trying to upload files via the FileUpload control related to ASP.NET. By default you can only upload files that are 4MB in size; to overcome this you need to change the value of the maxRequestLength attribute in your Web.Config (In your case the value should be something like 51200). Moreover the bigger a file is the longer it is going to take to push from a clients machine to the webserver so you also will need to look at the executionTimeout property so that you do not have a timeout between the server and client during the upload.

Also, if you are using IIS 7 it has a 30MB cap on file uploads. This blog details how you would go about changing that value: http://weblogs.asp.net/steveschofiel...e-in-iis7.aspx

In so far as your buffer full error, I assume that you are mismanaging the file stream as it comes into you application although I have no other advice outside of that.


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Old March 26th, 2008, 04:37 AM
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Thanks for your reply.

I have already made this change in web.config file like this :

<httpRuntime executionTimeout="3600" maxRequestLength="128000" useFullyQualifiedRedirectUrl="true" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="100"/>

then also this is not working

for second error(buffer full) i am sending code just look at it :


 Public Sub uploadFileUsingFTP(ByVal CompleteFTPPath As String, ByVal CompleteLocalPath As String, Optional ByVal UName As String = "", Optional ByVal PWD As String = "")

        'Create a FTP Request Object and Specfiy a Complete Path

        Dim reqObj As FtpWebRequest = WebRequest.Create(CompleteFTPPath)

        'Call A FileUpload Method of FTP Request Object

        reqObj.Method = WebRequestMethods.Ftp.UploadFile

        'If you want to access Resourse Protected You need to give User Name and PWD

        reqObj.Credentials = New NetworkCredential(UName, PWD)

        reqObj.Proxy = Nothing

        'FileStream object read file from Local Drive

        Dim streamObj As FileStream = File.OpenRead(CompleteLocalPath)

        'Store File in Buffer

        Dim buffer(streamObj.Length) As Byte

        'Read File from Buffer

        streamObj.Read(buffer, 0, buffer.Length)

        'Close FileStream Object Set its Value to nothing


        streamObj = Nothing

        'Upload File to ftp://localHost/ set its object to nothing

        reqObj.GetRequestStream().Write(buffer, 0, buffer.Length)

        reqObj = Nothing

    End Sub

    Protected Sub cmdUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdUpload.Click

        uploadFileUsingFTP("url", "path", "uid", "pwd")

        lblMsg.Text = "File Uploaded Successfully :)"

    End Sub



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