How to create byte array from HttpPostedFile
C#ArraysC# Problem Overview
I'm using an image component that has a FromBinary method. Wondering how do I convert my input stream into a byte array
HttpPostedFile file = context.Request.Files[0];
byte[] buffer = new byte[file.ContentLength];
file.InputStream.Read(buffer, 0, file.ContentLength);
ImageElement image = ImageElement.FromBinary(byteArray);
C# Solutions
Solution 1 - C#
Use a BinaryReader object to return a byte array from the stream like:
byte[] fileData = null;
using (var binaryReader = new BinaryReader(Request.Files[0].InputStream))
{
fileData = binaryReader.ReadBytes(Request.Files[0].ContentLength);
}
Solution 2 - C#
BinaryReader b = new BinaryReader(file.InputStream);
byte[] binData = b.ReadBytes(file.InputStream.Length);
line 2 should be replaced with
byte[] binData = b.ReadBytes(file.ContentLength);
Solution 3 - C#
It won't work if your file InputStream.Position is set to the end of the stream. My additional lines:
Stream stream = file.InputStream;
stream.Position = 0;
Solution 4 - C#
in your question, both buffer and byteArray seem to be byte[]. So:
ImageElement image = ImageElement.FromBinary(buffer);
Solution 5 - C#
before stream.copyto, you must reset stream.position to 0; then it works fine.
Solution 6 - C#
For images if your using Web Pages v2 use the WebImage Class
var webImage = new System.Web.Helpers.WebImage(Request.Files[0].InputStream);
byte[] imgByteArray = webImage.GetBytes();