Renaming Multiple files in folder C#

Question

I have over 200 files in a folder with Names like "Abc_Aucho.txt.202102011200", "Mnz_Aucho.txt.202102011210" I want to Replace this Abc_Aucho.txt.**20210201**1200name with DateTimePicker value on the button click event Thank you in Advance.

Amit Gupta · Answer

Use the VB assembly in C#. Add reference to Microsoft.VisualBasic Then to rename the file: Microsoft.VisualBasic.FileIO.FileSystem.RenameFile(myfile, newName); As File.Move(..) is not an ideal solution

Sachin Singh · Answer

okk then follow this DirectoryInfo d = new DirectoryInfo(@ "D:\Test" ); //Assuming Test is your Folder FileInfo[] Files = d.GetFiles( "*.txt" ); //Getting Text files string str = "" ; foreach(FileInfo file in Files ) { str = file.Name.Substring(14); // all before daatepart File.Move( file.Name, str+(Convert.ToDateTime(Calender1.SelectedDate)).ToString()); }

Suresh Panta · Answer

@Sachain sing sir. The name is like Abc_Aucho.txt.202102011200 format

Sachin Singh · Answer

First, let me know ,your extension (.txt) is at the last or middle means names are Abc_Aucho.txt.202102011200 or Abc_Aucho 202102011200 .txt; accordingly , i will tell you how to alter name.

Suresh Panta · Answer

string[] files = Directory.GetFiles(FileBrowser.SelectedPath); there are {string [200]} value and i would like to edit all filename where yyyyMMdd value is value from DateTimePicker Abc_Aucho.txt.yyyyMMdd1200

Salman Beg · Answer

Hey. Check this link which will give you what you are looking for, https://stackoverflow.com/questions/12347881/renaming-files-in-folder-c-sharp

Kiran Mohanty · Answer

Hi, You can replace file name as below . FileInfo file = new FileInfo( "c:	est.txt" ); file.Rename( "test2.txt" );