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How can we pass byte array data from Javascript to asp.net server side
Posted 25-Feb-13 0:04am
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aspnet_regiis -i at 25-Feb-13 5:11am
   
Assign it to a asp.net hidden field and access it from server side... Or use ajax call to post the value to the server
Niral Soni at 25-Feb-13 9:25am
   
Won't it be similar to the HTML file upload component ??
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Solution 1

As already suggested by aspnet_regiis, you have multiple ways to do it. Standard or most commonly used way is via traditional Ajax, i.e. XMLHttpRequest.
 
Have a quick read on this article: Sending and Receiving Binary Data[^]
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Solution 2

You can base64 encode the byte array in JavaScript to a base64 string and then pass the base64 string to asp.net. In asp.net you can decode the base64 string to a byte array.
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