image to binary

Question

when i use below code to convert image1.ImageUrl into binary it will work fine. 

 

MemoryStream ms = new MemoryStream();
byte[] imgtobinary = new byte[ms.Length];
ms.Position = 0;
ms.Read(imgtobinary, 0, (int)ms.Length);
ms.Read(imgtobinary, 0, imgtobinary.Length);

but when i use below code to convert image1.ImageUrl into binary it is not working and page is not responding anthing no generate any error and response. 

what should i do for this ?

 

i want to convert image into binary which is captured and display on image control by webcam.