C# Discussion Boards - CodeProject

loctrice14-Dec-12 8:40

14-Dec-12 8:40

I'm not very good with regular expressions. Google isnt' turning up much, but I think it's because I am not asking correctly.

I have a data annotation with multiple things I'm looking for in the regular expression validation. I have two words that can be typed, or it can start with one letter, but it cannot end in a letter unless it's on of the two words.

I've been tinkering with just starting with 2 letters, or ending with 1 letter. I found that one alright:

@"^[a-zA-Z0-9]{1}[0-9]+\d"

but I need the opposite of that. If I were to use that for validation I need something that does not match that pattern. I thought ^() would reverse it, but it didn't.

Urgentz codez?

If it moves, compile it

Re: Regex

PIEBALDconsult14-Dec-12 8:46

PIEBALDconsult

14-Dec-12 8:46

Maybe try a (?! subexpression ) Zero-width negative lookahead assertion.

Re: Regex

loctrice14-Dec-12 9:10

loctrice

14-Dec-12 9:10

thanks for the help.

If it moves, compile it

Re: Regex

loctrice14-Dec-12 9:10

loctrice

14-Dec-12 9:10

@"(^([0-9]|[A-Za-z][0-9])[A-Za-z0-9]+\d$)|(SpecialWord)|(OtherSpecialWord)"

I always do that. I post a question and then realize I was being a tard. This is the/a solution for the data annotation.

If it moves, compile it

Location of Ascii table or ascii table generator

computerpublic14-Dec-12 6:23

computerpublic

14-Dec-12 6:23

Hi,
Does anyone know the exact location of the C#.net ascii table or where exactly it is generated. Can someone please assist me a path or file name.

Thank You.

Re: Location of Ascii table or ascii table generator

Ennis Ray Lynch, Jr.14-Dec-12 9:14

Ennis Ray Lynch, Jr.

14-Dec-12 9:14

for(byte i=0;i<255;i++){
Console.WriteLine(((char)i));
}

Need custom software developed? I do custom programming based primarily on MS tools with an emphasis on C# development and consulting.

"And they, since they Were not the one dead, turned to their affairs" -- Robert Frost

"All users always want Excel" --Ennis Lynch

Re: Location of Ascii table or ascii table generator

computerpublic14-Dec-12 9:56

computerpublic

14-Dec-12 9:56

Thanks, but I don't need the code. I need the location of where to find it. Sorry about the misunderstanding.

Re: Location of Ascii table or ascii table generator

Ravi Bhavnani14-Dec-12 10:01

Ravi Bhavnani

14-Dec-12 10:01

What are you talking about? A file that contains a list of ASCII values!? Confused | :confused:

/ravi

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Re: Location of Ascii table or ascii table generator

computerpublic14-Dec-12 10:05

computerpublic

14-Dec-12 10:05

I really don't know how to make this any clearer. I am looking for the specific "location" of where the process of generating ascii values are done with the .net environment.

Re: Location of Ascii table or ascii table generator

Ravi Bhavnani14-Dec-12 10:10

Ravi Bhavnani

14-Dec-12 10:10

They're not generated. The .NET framework (and other frameworks such as the JDK) use Unicode encodings to map characters in different scripts to byte values. Unicode and ASCII reference tables are of course available online.

Hope this helps.

/ravi

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Re: Location of Ascii table or ascii table generator

computerpublic14-Dec-12 10:16

computerpublic

14-Dec-12 10:16

Ok understood. But "where exactly" (location) are these mapping done in the environment. All I am asking for is a path or file name.

Re: Location of Ascii table or ascii table generator

Ravi Bhavnani14-Dec-12 10:32

Ravi Bhavnani

14-Dec-12 10:32

They are done in read-only sections of code and aren't configurable (i.e. read from a file or the registry). It's the same with timezone definitions, calendar types and locales.

/ravi

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Re: Location of Ascii table or ascii table generator

Eddy Vluggen14-Dec-12 10:34

Eddy Vluggen

14-Dec-12 10:34

There's no "editor", there's no "file" where the mappings are loaded from.

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Re: Location of Ascii table or ascii table generator

jschell14-Dec-12 12:54

jschell

14-Dec-12 12:54

I would suppose

System.Text.ASCIIEncoding

In mscorlib (in mscorlib.dll)

Re: Location of Ascii table or ascii table generator

computerpublic14-Dec-12 22:18

computerpublic

14-Dec-12 22:18

Jschell,

Thank you very much for the help. I am very curious how you went about finding this file. Can you please explain your methodology?

Thanks again.

Re: Location of Ascii table or ascii table generator

jschell15-Dec-12 11:03

jschell

15-Dec-12 11:03

computerpublic wrote:
Can you please explain your methodology?

I already knew about encoders and the ASCII one.

And if you look up the encoder in the MS docs it tells you which dll contains the classes. It says that right at the top and looks like the following

Assembly:  mscorlib (in mscorlib.dll)

Re: Location of Ascii table or ascii table generator

computerpublic16-Dec-12 7:37

computerpublic

16-Dec-12 7:37

Thank you. I really appreciate your help in this matter.

Re: Location of Ascii table or ascii table generator

PIEBALDconsult15-Dec-12 9:02

PIEBALDconsult

15-Dec-12 9:02

That's like asking, "where are the integers stored?", as if there's some table that contains the complete set of integers. There is no such thing. It's a meaningless question.

My best guess would be that you want to know where to find typeface (font) files that allow the system to generate a particular glyph on the screen for a given ASCII code (or Unicode codepoint).

Some code pages are built into the system, but you may also want to look at dir %SystemRoot%\fonts .

Re: Location of Ascii table or ascii table generator

jschell15-Dec-12 11:00

jschell

15-Dec-12 11:00

PIEBALDconsult wrote:
That's like asking, "where are the integers stored?", as if there's some table that contains the complete set of integers. There is no such thing. It's a meaningless question.

The analogy is not apt.

Although ASCII is a rather trivial character set one can suppose that one might handle it like more complex character sets. Certainly since the memory considerations for the entire code page are trivial it certainly would be better unless one found that performance was better without it.

Re: Location of Ascii table or ascii table generator

PIEBALDconsult15-Dec-12 15:54

PIEBALDconsult

15-Dec-12 15:54

My point is that ASCII is really just a set of integers and not very useful without context.

iTunes Playlists in Folders

trgz14-Dec-12 5:08

trgz

14-Dec-12 5:08

I've a little project to organize my Library but I'm struggling to create a folder with a bunch of playlists within it. I've stripped it right down to the bare bones for here. I know that I can do this:

iTunesApp myTunes = new iTunesApp();
iTunesLib.IITPlaylist test1 = myTunes.CreateFolderInSource("test1", myTunes.LibrarySource);

or this

iTunesLib.IITPlaylist test2= myTunes.CreateFolder("test2");

and I can see that I have two options to add a playlist:

iTunesLib.IITPlaylist tempPlaylist = default(iTunesLib.IITPlaylist);
tempPlaylist = myTunes.CreatePlaylist("testP1");

tempPlaylist = myTunes.CreatePlaylistInSource("testP2",myTunes.LibrarySource);

but all I end up with is a an empty folder and a playlist sat in the main Library (ie in the section headed 'PLAYLISTS'). Has anyone got any suggestions please? It's not really C# specific but as I'm writing it in C#, and as it's one of the larger discussion areas, I thought I'd post it here Smile | :)

gris view and sql id (have to set without GUI)

GugliMugli14-Dec-12 4:53

GugliMugli

14-Dec-12 4:53

there are a grid view and sqldata sourceid in my code defined previously.
can i use it for any sql query? or i have to create some another???

Re: gris view and sql id (have to set without GUI)

chester_it2114-Dec-12 21:22

chester_it21

14-Dec-12 21:22

it all depends on your needs ....
for example:
If you have a query like this in your SqldDataSource to display the data to the Gridview :

SQL

select * from TableMasterCity

then you can use it to Bind dropdownlist or other control.
it all depends on the manufacture of the SQL query that you created and the need for its control.

Re: gris view and sql id (have to set without GUI)

GugliMugli15-Dec-12 20:23

GugliMugli

15-Dec-12 20:23

i need to call like
select * from temp c1,c2,c3 where c1='17/nov/2011'
is there any restriction to use specific data type??means when we create a grid view or sql data id we have to define data type of columns or not?

Re: gris view and sql id (have to set without GUI)

chester_it2116-Dec-12 8:31

chester_it21

16-Dec-12 8:31

I think,if you want show all colums in GridView,
you can define columns or not..both it's yes can...
If you dont want define columns in gridview,you can set Autogeneratecolumns=true in Properties Gridview ,and result will show data column c1,c2,c3..
If you set Autogeneratecolumns=false,you must define columns in gridview..

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