如何将物理路径转换为虚拟路径

Question

Below you can see the path that has been stored in the database and what i need it to look like. So I can use the path to change an image.

From the Database:

C:\\Users\\AlphaDog\\Desktop\\Alumni Revised\\AlumiTrackingSystem\\AlumiTrackingSystem\\AlumiTrackingSystem\\AlumiTrackingSystem\\image\\Vince\\Tulips.jpg

Needs to be changed to:

~/image/Vince/Tulips.jpg

Answer 1

i hope this is what you are looking for:

String RelativePath = AbsolutePath.Replace(Request.ServerVariables["APPL_PHYSICAL_PATH"], String.Empty);

it should work if your app phisical path is:

C:\Users\AlphaDog\Desktop\Alumni Revised\AlumiTrackingSystem\AlumiTrackingSystem\AlumiTrackingSystem\AlumiTrackingSystem\

Answer 2

Something like the following should do the trick. A little more code than the previous answer, but you know, sometimes I like to do things the hard way.

    string path = @"C:\Users\AlphaDog\Desktop\Alumni Revised\AlumiTrackingSystem\AlumiTrackingSystem\AlumiTrackingSystem\AlumiTrackingSystem\image\Vince\Tulips.jpg";
    string[] splitPath = path.Split('\\');
    int start = 0;
    foreach (string s in splitPath) {
         if (s == "image")
             break;
         else
             start++;
    }
    string virtualPath = "~/";
    for (int i = start; start < splitPath.Length; start++) {
         virtualPath += (i > start ? "/" : "") + splitPath[start];
    }