Request.MapPath( )

Hi Akshay,

You need to use MapPath to resolve virtual paths and physical paths. You run the ASP.NET development server on your local machine, but the paths on it are not the same as they are on your server. Here we use MapPath to find physical paths and file locations, using the C# programming language.

First, in ASP.NET the ~ tilde indicates the root of a virtual path. We need the tilde because otherwise ASP.NET can't figure out if a path is absolute or relative. Let's look at some virtual paths and what they might map to.

Virtual paths

~/App_Data/Sample.xml

~/

~/Map.txt

Physical paths

C:\Website\Files\Sample.xml

C:\Website\Default.aspx

C:\Website\Map.txt

Example code that uses MapPath [C#]

using System;

using System.Web;

 

///

/// This is an example code-behind file you can put in App_Code.

/// It shows examples of using MapPath in code-behind easily.

///

public class Example

{

    public Example()

    {

                // This will locate the Example.xml file in the App_Data folder.

                // ... (App_Data is a good place to put data files.)

                string a = HttpContext.Current.Server.MapPath("~/App_Data/Example.xml");

                // This will locate the Example.txt file in the root directory.

                // ... This can be used in a file in any directory in the application.

                string b = HttpContext.Current.Request.MapPath("~/Example.txt");

    }

}

 

 

Hi Akshay,



Mappath() method converts a virtual path to a fully qualified physical path on the server.

string fullpath = Request.MapPath("~\Test.txt");






Thanks