Finding Character in String

[Mr. B]

I want to return the name of the drawing file (DWG) from the end of a string.
The string will be of varying lengths... as well as the drawing file name
itself.

I could do it the long way by getting the length of the string, and
subtracting one character at a time until I hit the '\' character... then
I'll know how much to subtract to get my file name.

An example of the string is:
"P:\Projects\2004\10-02-230 (ProjectName\600 Drawings\E101.dwg"

But is there an easier (and faster) way to search for the last '\' character
in my string? (keep in mind that the number of '\' in each string will also
vary).

Thanks in advance!

Regards,

Bruce

[Bernie Yaeger]

Hi Mr B,

Take a look at the instrrev function.

HTH,

Bernie Yaeger

"Mr. B" <Us**@NoWhere.com> wrote in message
news:7o********************************@4ax.com...

I want to return the name of the drawing file (DWG) from the end of a string. The string will be of varying lengths... as well as the drawing file name
itself.

I could do it the long way by getting the length of the string, and
subtracting one character at a time until I hit the '\' character... then
I'll know how much to subtract to get my file name.

An example of the string is:
"P:\Projects\2004\10-02-230 (ProjectName\600 Drawings\E101.dwg"

But is there an easier (and faster) way to search for the last '\' character in my string? (keep in mind that the number of '\' in each string will also vary).

Thanks in advance!

Regards,

Bruce

[John Q]

The System.IO.Path class is filled with static methods to deal with file and path names

string fileName = Path.GetFileName(yourPathString);

[george_wilburn]

try this if you are doing directory enumeration
http://msdn.microsoft.com/library/default.asp?
url=/library/en-
us/cpref/html/frlrfsystemiofilesysteminfoclassextensiontop
ic.asp

-----Original Message-----
Hi Mr B,

Take a look at the instrrev function.

HTH,

Bernie Yaeger

"Mr. B" <Us**@NoWhere.com> wrote in message
news:7o********************************@4ax.com.. .

I want to return the name of the drawing file (DWG) from the end of a

string.

The string will be of varying lengths... as well as

the drawing file name itself.

I could do it the long way by getting the length of the string, and subtracting one character at a time until I hit the '\' character... then I'll know how much to subtract to get my file name.

An example of the string is:
"P:\Projects\2004\10-02-230 (ProjectName\600 Drawings\E101.dwg"
But is there an easier (and faster) way to search for

the last '\'character

in my string? (keep in mind that the number of '\' in

each string willalso

vary).

Thanks in advance!

Regards,

Bruce

.

[Mr. B]

With Deft Fingers, Mr. B <Us**@NoWhere.com> wrote:

I want to return the name of the drawing file (DWG) from the end of a string.
The string will be of varying lengths... as well as the drawing file name
itself.

Yeow! Thanks ALL... so many options to choose from... I'll try them all and
see where I get.

Thanks muchly!

bruce

[Jon Skeet [C# MVP]]

Mr. B <Us**@NoWhere.com> wrote:

With Deft Fingers, Mr. B <Us**@NoWhere.com> wrote:

I want to return the name of the drawing file (DWG) from the end of a string.
The string will be of varying lengths... as well as the drawing file name
itself.

Yeow! Thanks ALL... so many options to choose from... I'll try them all and
see where I get.

While there are indeed lots of ways of approaching this, I'd be
surprised if Path.GetFileName or Path.GetFileNameWithoutExtension
didn't turn out to be the best one here, as they do *exactly* what it
sounds like you need.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Cor Ligthert]

Hi Jon,

That was what Herfried had answered already in the VB.language group,
however you can not see that because Herfried is using a newsreader which
cannot crosspost when it is not in his range of standard newsgroups.

Therefore you was probably suprissed by the answer of mr. B.

Just to make it more clear for you.

Cor

While there are indeed lots of ways of approaching this, I'd be
surprised if Path.GetFileName or Path.GetFileNameWithoutExtension
didn't turn out to be the best one here, as they do *exactly* what it
sounds like you need.

[Joe Fallon]

I agree that these are the best :Path.GetFileName or
Path.GetFileNameWithoutExtension .

One alternative for finding the position of the last character in a string
which is not a file name is:
strFoo.LastIndexOf("\")

Dim somestring As String = "this is a long string"
Dim i As Integer = somestring.LastIndexOf("s")

i =15

--
Joe Fallon


"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

Mr. B <Us**@NoWhere.com> wrote:

With Deft Fingers, Mr. B <Us**@NoWhere.com> wrote:

I want to return the name of the drawing file (DWG) from the end of a string.The string will be of varying lengths... as well as the drawing file nameitself.

Yeow! Thanks ALL... so many options to choose from... I'll try them all and see where I get.

While there are indeed lots of ways of approaching this, I'd be
surprised if Path.GetFileName or Path.GetFileNameWithoutExtension
didn't turn out to be the best one here, as they do *exactly* what it
sounds like you need.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Cor Ligthert]

Hi Joe,

That is what Bernie posted (although with the VB function equivalent from
it) and Herfried and Jon did give both independent from each other the
better alternative GetFilePath.

In this thread even a C# diehard as Jon did not come with the LastIndexOf. I
can assure you that all other posters active in this thread do know that
method very well. It was (by me, however I think also by the others)
express not given, so the OP would not become confused.

Do you think you help the OP with telling this worse method for this
problem.

Cor

[Cor Ligthert]

I forgot to mention John. Q. sorry John,

Cor