c# - How to set max FileSize of uploaded file with if-statement? -

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i created <asp:fileupload id="fileuploadpassfoto"> on webpage. (asp.net , c#)

i want check if uploaded file(image) bigger 6000kb. if true, file wont accepted , error message displayed. stored uploaded file following: (code behind)

system.drawing.image photo = system.drawing.image.fromstream(fileuploadpassfoto.postedfile.inputstream);

now want check if image bigger 6000kb.

it works photo.size > size(6000kb).

any suggestions?

you can check this:

decimal size = math.round(((decimal)fileuploadpassfoto.postedfile.contentlength / (decimal)1024), 2);     if(size > 6000)     {        // size greater 6000kb      }

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