使用Server.MapPath定位正确的目录

Question

I'm building a webapp using ASP.NET.

On my physical hard drive:

The path for my text file is: D:\\Users\\(MyName)\\Documents\\Visual Studio 2013\\Projects\\(ProjectName)\\(ProjectName)\\Data\\TextFiles\\someFile.txt

The .cs file is located in: D:\\Users\\(MyName)\\Documents\\Visual Studio 2013\\Projects\\(ProjectName)\\(ProjectName)\\Account\\someCSFile.cs

In my code, I have the followings:

string fileName= Server.MapPath("TextFile/someFile.txt");

The code throws an exception saying that Could not find a part of the path 'D:\\Users\\(MyName)\\Documents\\Visual Studio 2013\\Projects\\(ProjectName)\\(ProjectName)\\Account\\TextFile\\someCSFile.cs

How am I going to use Server.MapPath to make it "go up one level", then find the "Data" folder > "TextFiles" > finally the "someFile.txt" WITHOUT hardcoding the entire file path?

Answer 1

This should do the trick

string fileName= Server.MapPath(@"..\Data\TextFile\someFile.txt");

take a look at this: StackOverflow Post about Server.MapPath

Answer 2

You can use .. to go up one level:

string fileName= Server.MapPath("../Data/TextFile/someFile.txt");

You can also start from the application root by starting the path with a slash:

string fileName= Server.MapPath("/Data/TextFile/someFile.txt");