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(C#) Get the Last-Modified Date Before HTTP DownloadDemonstrates how to send a HEAD request to get the last-modified date of a file on a web server (without downloading the file).
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Http http = new Chilkat.Http(); Chilkat.HttpResponse resp = http.GetHead("https://www.chilkatsoft.com/hamlet.xml"); if (http.LastMethodSuccess == false) { Debug.WriteLine(http.LastErrorText); return; } // Examine the response header. Debug.WriteLine(resp.Header); // Here is a sample response header: // Content-Length: 279658 // Content-Type: text/xml // Last-Modified: Thu, 12 May 2016 15:14:08 GMT // Accept-Ranges: bytes // ETag: "c1cd8bee60acd11:0" // Server: Microsoft-IIS/8.5 // X-Powered-By: ASP.NET // X-Powered-By-Plesk: PleskWin // Date: Thu, 25 Jul 2019 16:40:54 GMT // Get the Last-Modified header. string lastModStr = resp.GetHeaderField("Last-Modified"); // If the header exists... if (resp.LastMethodSuccess == true) { // Parse the RFC822 format date/time string Chilkat.CkDateTime ckdt = new Chilkat.CkDateTime(); ckdt.SetFromRfc822(lastModStr); // If we want to access individual date/time parts (in the local timezone) Chilkat.DtObj dt = ckdt.GetDtObj(true); Debug.WriteLine("day/month/year = " + Convert.ToString(dt.Day) + "/" + Convert.ToString(dt.Month) + "/" + Convert.ToString(dt.Year)); } |
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