File downloading

Question

Response.ContentType = dr[projecttype].ToString(); Response.AddHeader(Content-Disposition attachment;filename=+dr[filename]+); Response.BinaryWrite((byte[])dr[size]); Response.End(); Can anybody explain these four steps clearly? they are related to file downloading concept.... plzzzz its needed very quickly...

Srikanth Reddy · Answer

ok.. then how it is going to download the file to our system. internally what happens when these four statements are executing?

Iftikar Hussain · Answer

Hi Response.ContentTyp e - The ContentType property specifies the HTTP content type for the response. If no ContentType is specified the default is text/HTML. Response.AddHeader - The AddHeader method adds a new HTML header and value to the response sent to the client. It does not replace an existing header of the same name. After a header has been added it cannot be removed. Response.BinaryWrite - The BinaryWrite method writes the specified information to the current HTTP output without any character conversion. This method is useful for writing nonstring information such as binary data required by a custom application. Response.End - The End method causes the Web server to stop processing the script and return the current result. The remaining contents of the file are not processed. Regards Iftikar