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c#asp.netweb-applicationsashxaspx-user-control
BOBIN JOSEPH
BOBIN JOSEPH

Reputation: 1022

How to use web handlers for PDF creation?

I have pretty less knowledge in web handlers. All I know is web handlers are used for creating some dynamic file creation purpose.

And also I know how to add the Web handlers.

But, I need to use web handlers in my ASP.NET project for PDF creation purpose.

Upvotes: 2

Views: 2469

Answers (2)

shivas
shivas

Reputation: 923

You can have a HTTP handler to serve out your PDFs like this:

public void ProcessRequest (HttpContext context) {

    // Get your file as byte[]
    string filename = "....file name.";
    byte[] data = get your PDF file content here;

    context.Response.Clear();
    context.Response.AddHeader("Pragma", "public");
    context.Response.AddHeader("Expires", "0");
    context.Response.AddHeader("Content-Type", ContentType);
    context.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", filename));
    context.Response.AddHeader("Content-Transfer-Encoding", "binary");
    context.Response.AddHeader("Content-Length", data.Length.ToString());
    context.Response.BinaryWrite(data);
    context.Response.End(); 

}

Upvotes: 2

CodeCaster
CodeCaster

Reputation: 151586

Read What is an HttpHandler in ASP.NET and MSDN: HTTP Handlers and HTTP Modules Overview.

You do not need a handler to serve files for downloading over HTTP. You can also generate and return a file response in a WebForms page, as well as from ASP.NET MVC and WebAPI.

Depending on the technology you use, check out:

Of course, any layer on top of a handler (as opposed to running your code from a handler directly) adds additional overhead (though it'll be minimal), where I suspect WebForms to be the heaviest. MVC and WebAPI are run through the MvcHandler.

Upvotes: 2

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