View pdf file web page asp net

ToString ;. SetCacheability HttpCacheability. NoCache ;. BinaryWrite bytes ;. Flush ;. End ;. QueryString "Id". Dim bytes As Byte. AddWithValue " Id" , id. If context. AppendHeader "Content-Disposition" , Convert. BinaryWrite bytes. Return False. End Get. End Property. End Class.

Adobe PDF Reader installed. Adobe PDF Reader not installed. Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation. You will be notified via email when the author replies to your comment. Please select a comment to reply.

If a website is moved, an absolute path will be wrong. Moreover, for a hosted site as opposed to on your own computer you typically don't even know what the correct path is when you're writing the code. But sometimes like now, for writing a file you do need a complete path. The solution is to use the MapPath method of the Server object. This returns the complete path to your website. You can then concatenate additional information onto whatever the method returns in order to create a complete path.

In this example, you add a file name. You can read more about how to work with file and folder paths in Introduction to ASP. This folder is a special folder in ASP. The WriteAllText method of the File object writes the data to the file. This method takes two parameters: the name with path of the file to write to, and the actual data to write.

Notice that the name of the first parameter has an character as a prefix. This tells ASP. For more information, see Introduction to ASP. On your development computer this is not typically an issue.

However, when you publish your site to a hosting provider's web server, you might need to explicitly set those permissions. If you run this code on a hosting provider's server and get errors, check with the hosting provider to find out how to set those permissions. In the previous example, you used WriteAllText to create a text file that's got just one piece of data in it. If you call the method again and pass it the same file name, the existing file is completely overwritten.

However, after you've created a file you often want to add new data to the end of the file. You can do that using the AppendAllText method of the File object. In the website, make a copy of the UserData. This code has one change in it from the previous example. The methods are similar, except that AppendAllText adds the data to the end of the file. Even if you don't need to write data to a text file, you'll probably sometimes need to read data from one.

To do this, you can again use the File object. You can use the File object to read each line individually separated by line breaks or to read individual item no matter how they're separated. This procedure shows you how to read and display the data that you created in the previous example.

The code starts by reading the file that you created in the previous example into a variable named userData , using this method call:. The code to do this is inside an if statement. When you want to read a file, it's a good idea to use the File. Exists method to determine first whether the file is available. The code also checks whether the file is empty.

The body of the page contains two foreach loops, one nested inside the other. The outer foreach loop gets one line at a time from the data file. Raw TempData[ "Embed" ]. Adobe PDF Reader installed. Adobe PDF Reader not installed. Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation. You will be notified via email when the author replies to your comment.

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