如何在c#中更改文件名？ [复制]

Question

我在从文件对话框返回文件名时遇到问题。 我只需要更改文件名，而不需要更改其路径。
我想要这样的东西......

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

Answer 1

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

或不带文件扩展名：

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

Answer 2

也许你要查看MSDN，例如：

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