check the filename existence in the list list[] before move (rename)

Accepted answer

string str="file_test.txt.202102021112 ";
int defaultlength =str.Length;
bool IsValid = yourList.Any(x=>x.Length!=defaultLength);

+1

How can check the file name length on the same list? all the file names contain the same length. if it is different in file name length just pop up the error message?

eg

file_test.txt.202102021112

file_test.txt.202102021113

error filename

file_test.txt.202102021112 -copy

or

ile_test.txt.-copy202102021112

+1

Sachin Singh5y ago

for List all will work

method 1.

bool isAny=YourList.Any(e => e==OldFileName);

method 2.

public bool IsAny(List myList, string path)
{
if(myList.Contains(path))
{
return true;
}
return false;
}

+1

Suresh Panta5y ago

sorry for the inconvenience

its List !

+1

Sachin Singh5y ago

please elaborate more , is this List or List

for list you can simple use contains/Exist/Any methods

bool isAny=YourList.Any(e => e==OldFileName);

Note :- i am considering that you have a List as file names.

+1