在 C# 中更改图像路径的文件名

Question

My image URL is like this:

photo\myFolder\image.jpg

I want to change it so it looks like this:

photo\myFolder\image-resize.jpg

Is there any short way to do it?

Answer 1

This following code snippet changes the filename and leaves the path and the extenstion unchanged:

string path = @"photo\myFolder\image.jpg";
string newFileName = @"image-resize";

string dir = Path.GetDirectoryName(path);
string ext = Path.GetExtension(path);
path =  Path.Combine(dir, newFileName + ext); // @"photo\myFolder\image-resize.jpg"

Answer 2

You can use Path.GetFileNameWithoutExtension method.

Returns the file name of the specified path string without the extension.

string path = @"photo\myFolder\image.jpg";
string file = Path.GetFileNameWithoutExtension(path);
string NewPath = path.Replace(file, file + "-resize");
Console.WriteLine(NewPath); //photo\myFolder\image-resize.jpg

Here is a DEMO .

Answer 3

Or the File.Move method:

System.IO.File.Move(@"photo\myFolder\image.jpg", @"photo\myFolder\image-resize.jpg");

---

BTW: \\ is a relative Path and / a web Path, keep that in mind.

Answer 4

This is what i use for file renaming

public static string AppendToFileName(string source, string appendValue)
{
    return $"{Path.Combine(Path.GetDirectoryName(source), Path.GetFileNameWithoutExtension(source))}{appendValue}{Path.GetExtension(source)}";
}

Answer 5

I would use a method like this:

private static string GetFileNameAppendVariation(string fileName, string variation)
{
    string finalPath = Path.GetDirectoryName(fileName);

    string newfilename = String.Concat(Path.GetFileNameWithoutExtension(fileName), variation, Path.GetExtension(fileName));

    return Path.Combine(finalPath, newfilename);
}

In this way:

string result = GetFileNameAppendVariation(@"photo\myFolder\image.jpg", "-resize");

Result: photo\\myFolder\\image-resize.jpg

Answer 6

You can try this

 string  fileName = @"photo\myFolder\image.jpg";
 string newFileName = fileName.Substring(0, fileName.LastIndexOf('.')) + 
                     "-resize" + fileName.Substring(fileName.LastIndexOf('.'));

 File.Copy(fileName, newFileName);
 File.Delete(fileName);

Answer 7

try this

File.Copy(Server.MapPath("~/") +"photo/myFolder/image.jpg",Server.MapPath("~/") +"photo/myFolder/image-resize.jpg",true);
File.Delete(Server.MapPath("~/") + "photo/myFolder/image.jpg");