如何在c＃中更改文件名？

Question

我在文件对话框中返回文件名时遇到问题。 我只需要更改文件名而不是路径 我想要这样的东西......

string name_to_change="abc";
string filenameAtClient = this.saveFileDialog.FileName;
filenameAtClient=name_to_change;

Answer 1

也许您必须检查MSDN，例如：

http://msdn.microsoft.com/en-us/library/microsoft.visualbasic.fileio.filesystem.renamefile(v=vs.110).aspx

Answer 2

string name_to_change = "abc";
string filenameAtClient = this.saveFileDialog.FileName;
filenameAtClient = filenameAtClient.Replace(Path.GetFileName(filenameAtClient), name_to_change);

没有文件扩展名的OR：

string name_to_change = "abc";
string filenameAtClient = this.saveFileDialog.FileName;
filenameAtClient = filenameAtClient.Replace(Path.GetFileNameWithoutExtension(filenameAtClient), name_to_change);