I have an application that collects data and puts it in a text file. When the data collection is complete the UI offers the user the opportunity to save or open the text file with a dialog box using this code:
Response.Clear();
Response.ClearHeaders();
Response.AppendHeader("Content-Disposition", "attachment; filename=" + outputFilename + ";");
Response.Cache.SetCacheability(HttpCacheability.Private);
Response.ContentType = "text/plain";
Response.WriteFile(outputFilePath + outputFilename);
Response.End();
Response.Flush();
The problem is this. The starting interface allows the user to select a large number of data gathering points. If all are selected the program will run for about 90 minutes. Sometimes it will present the dialog box, sometimes not. Sometimes it will present the dialog box, but regardless of whether the user selects ...
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