Capturing HTML output with a controller action filter

Question

I\'ve got the following filter in place on an action to capture the HTML output, convert it to a string, do some operations to modify the string, and return a ContentResult

Answer 1

Try rewinding the stream to the beginning by setting Position = 0; before you read it.

public override void OnActionExecuted(ActionExecutedContext filterContext)
{
    stream.Position = 0;
    string response = new StreamReader(stream).ReadToEnd();
    ContentResult contres = new ContentResult();
    contres.Content = response;
    filterContext.Result = contres;
}