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How can I get from a string of a directory and file name only the file name? [closed]

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Closed 10 years ago.
The code:
'Files' is a List<string> and _indx is an int.
label22.Text = files[_indx];
For example in 'files' in index[0] I have this string:
D:\New folder (45)\converted.avi_Automatic\Lightning 0 Length 2 [91 - 93]\000091.bmp
But instead in label22.Text I want it to show me only '000091.bmp' without the rest of the directory path.
How can I do it ?

Use Path.GetFileName:
label22.Text = Path.GetFileName(files[_indx]);

I believe you are looking for Path.GetFileName():
label22.Text = Path.GetFileName(files[_indx]);

Path.GetFileName(fileName) returns the file name without the directory.
taken from http://msdn.microsoft.com/en-us/library/system.io.path.getfilename(v=vs.100).aspx

The simplest way is
Path.GetFileName(files[_indx]);

Converting C# line to VB.net [closed]

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Closed 10 years ago.
I was trying to convert the following c# code to vb.net.
I see the problem is my lack of familiarity with the syntax of the parameters of OrderByDescending() What is the proper VB.Net equivalent of the C# line?
//C# code
SelectedFolder.Search("ALL", true).OrderByDescending(_ => _.Date).ToList();
//VB.Net part which doesn't work
For Each msg In SelectedFolder.Search("ALL", True).OrderByDescending(Function(_).[Date]).ToList()
After removing the underscore before [Date] the error became,
Error 1 Identifier expected.

The _ character is a line continuation in VB. Try changing the variable name to something more common, like x
For Each msg In SelectedFolder.Search("ALL", True).OrderByDescending(Function(x) x.[Date]).ToList()

Why am I getting a FileNotFoundException when the file is there? [closed]

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Closed 9 years ago.
I'm trying to save a file to the server and then load into a reader for it to be downloaded. However, I am getting a FileNotFoundExeption. I save to the exact same path, manually open the directory and can see the file there. However, reading it results in the exception. This is my first time trying his - am I doing something wrong?
try
{
using (StreamReader reader = new
StreamReader(HttpContext.Current.Server.MapPath(#"~/Downloads/data.text")))
{
// do something
}
}
catch (Exception)
{
}

Double-check the file name! In one of your comments you used the file name data.txt and not the name data.text. I suppose it's just a typo in your code.

what does format {0:x} mean? [closed]

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Closed 10 years ago.
I came across this C# literal and was wondering what does it mean?
Especially, in the following case:
string.Format("{0:x}", byteArray[i]);
Thanks

It means format the first argument (index 0) as hexadecimal: http://msdn.microsoft.com/en-us/library/s8s7t687(v=vs.80).aspx

It means the first argument will be output as hexadecimal (in lowercase !!).
To output uppercase you could use "{0:X}".
Look msdn for more info about string formatting : MSDN Custom string format

This represents the hexadecimal format.

explicitly casting generics in C# 4 [closed]

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Closed 11 years ago.
Can anyone help me in casting generic collection in c# 4.
Here is the code snippet.
GridView1.DataSource = dataServiceColl.Select(t => t.product_desc="EdibileItem")
It is throwing up runtime error at the below line,
Gridview1.Databind();
Saying it is a HTTP Exception.
I think it should be a simple type cast.
Thanks,
Kris.

Use
t => t.product_desc=="EdibileItem"

HTTP Exception? That has nothing to do with casting.
More importantly, why are you assigning "EdibleItem" to t.product_desc here?
Select(t => t.product_desc="EdibileItem")
Did you meant == instead of =? If so, would a Where be more appropriate than a Select?
I think it all boils down to: what are you trying to achieve, exactly?