Change File Name on Button click

Suresh Panta

I have more than 1000 file name like All_Test.txt.202102180430 (All_Test.txt.yyyyMMdd0430)

and like to change only (yyyyMMdd) on button click, according to clicked date would you please help me.

thank you very much in Advance.

stay safe and healthy!

3 Replies

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Shweta Lodha5y ago
Accepted answer
In that case, you can use below line to get list of all the files in any folder:
var files = Directory.GetFiles(FolderPath);
Suresh Panta5y ago
Thank you for your response.

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**1200 name with DateTimePicker value on the button click event
Thank you in Advance.
Shweta Lodha5y ago
1. List<string> fileCollection = new List<string>();
2. fileCollection.Add(@"C:\FolderName\sh.txt.202102180430");
3. fileCollection.Add(@"C:\FolderName\sh1.txt.202102180430");
4. foreach (var file in fileCollection)
5. {
6. var fileExtn = Path.GetExtension(file);
7. var newFileExtn = fileExtn.Replace(fileExtn.Substring(1, 8), "NEW_TEXT");
8. var newfile = Path.GetFileNameWithoutExtension(file) + newFileExtn;
9. System.IO.File.Move(file, Path.GetDirectoryName(file) + "\\" + newfile);
10. }