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File name from a string with file path C# [duplicate]

This question already has answers here:
Given a filesystem path, is there a shorter way to extract the filename without its extension?
(10 answers)
Closed 10 months ago.
Suppose I have an array of strings with full file names and paths. For example
string[] filesArray = Directory.GetFiles(#"C:\dir", "*", SearchOption.AllDirectories);
Now let's say we have the following data in the array:
filesArray[0] = "C:\dir\file1.txt"
filesArray[1] = "C:\dir\subdir1\file2.txt"
filesArrat[2] = "C:\dir\subdir1\subdir2\file3.txt"
... etc.
Now I want a new array, that will store only the files' names, something like this:
nameArray[0] = "file1.txt"
nameArray[1] = "file2.txt"
nameArray[2] = "file3.txt"
What is the best way to do it, using string array only, without storing the full FileInfo class objects?

Using LINQ it's pretty simple
string[] nameArray = filesArray.Select(p => Path.GetFileName(p)).ToArray()

Find absolute path in c# [duplicate]

This question already has answers here:
Relative path to absolute path in C#?
(8 answers)
Closed 2 years ago.
I'm trying to get the full path to a file.
I have the "end" of the path like:
\some_folder\myTextFile.txt
and the "beginning" like:
c:\Users\me\...
how do I find the absolute path to the textfile?

using System.IO
(...)
string relativePath = "\some_folder\myTextFile.txt";
string absolutePath = Path.GetFullPath(relativePath);
should work

string [] fileEntries = Directory.GetFiles(targetDirectory);
foreach(string a in fileEntries)
{
if(a.Contains("\some_folder\myTextFile.tx"))
{
return a
}
else
{
continue;
}
}

Find a set of characters in a string C# class file(.cs) [duplicate]

This question already has answers here:
How can I check if a string exists in another string
(10 answers)
Closed 5 years ago.
I'm working on a Existing Class file(.cs) which fetches a string with some data in it.
I need to check if the string contains a word. String has no blank spaces in it.
The string-
"<t>StartTxn</t><l>0</l><s>0</s><u>1</u><r>0</r><g>1</g><t>ReleaseUserAuthPending</t>"
I need to check if the string contains 'ReleaseUserAuthPending' in it.

You can try this:
var strValue = "<t>StartTxn</t><l>0</l><s>0</s><u>1</u><r>0</r><g>1</g><t>ReleaseUserAuthPending</t>";
if (strValue.Contains("ReleaseUserAuthPending"))
{
//Do stuff
}
Refer About String - Contains function
For your information: Contains function is case-sensitive. If you want to make this Contains function as case-insensitive. Do the following step from this link.

bool containsString = mystring.Contains("ReleaseUserAuthPending");

Try
String yourString = "<t>StartTxn</t><l>0</l><s>0</s><u>1</u><r>0</r><g>1</g><t>ReleaseUserAuthPending</t>";
if(yourString.Contains("ReleaseUserAuthPending")){
//contains ReleaseUserAuthPending
}else{
//does not contain ReleaseUserAuthPending
}

How do I get the file name with it's extension? [duplicate]

This question already has answers here:
Given a filesystem path, is there a shorter way to extract the filename without its extension?
(10 answers)
Closed 7 years ago.
I have tried this but this only gets the file name not the extension. How do I get file name with extension?
string[] FileList = (string[])e.Data.GetData(DataFormats.FileDrop, false);
string filename = Path.GetFileNameWithoutExtension(FileList[0]);

Path.GetFileName()
string[] FileList = (string[])e.Data.GetData(DataFormats.FileDrop, false);
string filename = Path.GetFileName(FileList[0]);
Check the documentation

Return filename without extension from full path in C# [duplicate]

This question already has answers here:
Getting file names without extensions
(14 answers)
Closed 7 years ago.
I'm looking for a way to return fileName from full path but without extension.
private static string ReturnFileNameWithoutExtension(string varFullPathToFile) {
string fileName = new FileInfo(varFullPathToFile).Name;
string extension = new FileInfo(varFullPathToFile).Extension;
return fileName.Replace(extension, "");
}
Is there more bullet proof solution then replacing extension with empty string?

return Path.GetFileNameWithoutExtension (fullpath);

i'm using System.IO.Path.GetFileNameWithoutExtension(filename);

You're looking for Path.GetFileNameWithoutExtension

One More solution
string fileName = new FileInfo(varFullPathToFile).Name;
fileName=fileName.Substring(0, fileName.LastIndexOf("."));