ContentType PropertyUse the ContentType property in ASP.NET to change the Content-Type HTTP header.
This page was last reviewed on Sep 27, 2022.
ContentType sets an HTTP header. It is useful when sending a response that is not HTML. By using the ContentType property we change the HTTP header for the response.
Server headers. So when you set the ContentType property, how does this affect the HTTP headers sent by IIS? We will see this header being sent: "Content-Type: text/plain".
Example. Here the Application_BeginRequest event handler is defined. In Application_BeginRequest, we acquire the HttpResponse, and then assign the ContentType property to "text/plain".
Finally We write some characters with the Response.Write method and call CompleteRequest.
using System; using System.Web; namespace WebApplication1 { public class Global : HttpApplication { void Application_BeginRequest(object sender, EventArgs e) { // Get response. HttpResponse response = base.Response; // Set ContentType. response.ContentType = "text/plain"; // Write string. response.Write("PLAIN TEXT"); // Complete request. base.CompleteRequest(); } } }
Page output. When this is executed successfully, you will see a plain text page in your web browser with the PLAIN TEXT in monospaced font.
Note Browsers will read this header and then display your page as a plain text document, not HTML.
A summary. We sent a different Content-Type HTTP header in the ASP.NET environment. By assigning to the ContentType property, the response will be sent with your specified value.
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This page was last updated on Sep 27, 2022 (edit).
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