What is the maximum size a session variable can hold?

Question

What is the maximum size a session variable can hold ? I am trying to store object in session variable, if object size is under 80 KB, then working fine and if the size is greater than 80 KB then on retrieval I am getting an exception.

How can I increase the session variable size?

This behaviour is on my production server, on the development machine I can store big objects like above 500 KB etc..

I am implementing something like... http://aspalliance.com/1221_CodeSnip_Uploading_Multiple_Files_At_Once.all

Here is my code:

private static int count = 0;

protected void Upload_Click(object sender, EventArgs e)
{
    for (int loopCount = 0; loopCount < count; loopCount++)
    {
        HtmlInputFile hif = (HtmlInputFile)Session["myupload" + loopCount];
        String filePath = Server.MapPath("~/AdvImages/") + loopCount.ToString() + "_" + hif.PostedFile.FileName;
        hif.PostedFile.SaveAs(filePath);
        Session.Abandon();
    }
}
protected void btnAdd_Click1(object sender, EventArgs e)
{
    Session["myupload" + count] = FileUpload1;
    count++;
}

Thanks

@Pina, Actually I am storing fileupload object and if the file size is greater than 80 KB, I am getting exception like "Cannot access a closed file" — Muhammad Akhtar, Nov 18 '09 at 11:31
Can you post your code. You said in the comments that you are doing something different if it's over 80k, so is doesn't sound like a size problem, just a problem with your code in that case. — UpTheCreek, Nov 18 '09 at 11:36
@Sosh, Actually I am implmenting this thing http://aspalliance.com/1221_CodeSnip_Uploading_Multiple_Files_At_Once.all Multiple fileload atonce — Muhammad Akhtar, Nov 18 '09 at 11:40
@Sosh, I am 100% sure, that there is no problem with my code, because I have check all alternative and finally I am reach that this the problem — Muhammad Akhtar, Nov 18 '09 at 11:43

score 3 · Accepted Answer · edited May 23 '18 at 06:57

3

Try to change requestLengthDiskThreshold to this:

<system.web>
    <httpRuntime executionTimeout="90" 
                 maxRequestLength="20000" 
                 useFullyQualifiedRedirectUrl="false" 
                 requestLengthDiskThreshold="8192"/>
</system.web>

edited May 23 '18 at 06:57

Arjun Prakash

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answered Nov 18 '09 at 19:59

Vitaly

2,567
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score 2 · Answer 2 · answered Nov 18 '09 at 20:00

2

From what i can think of, storing files in a session variable is a bad choice! Instead you can think of putting them into a temp location and then when upload is clicked you can put the to the real storage. Later on you can clear off the temp storage.

answered Nov 18 '09 at 20:00

Illuminati

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What is the maximum size a session variable can hold?

2 Answers2

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