C# Discussion Boards - CodeProject

Dromar2-Mar-09 10:54

2-Mar-09 10:54

Hi everyone,

I use Regex for splitting a string. Now i have 2 Questions:

1. I have e.g the string "something || anything && anotherthing" and I want to split it into string[3] ={ something, anything, anotherthing }; is there an easier way than to use 2 Regex like Regex("||") and Regex("&&") and split it first with one Regex and then each element with the other?

2. I have heard that when you split a string you can leave the splitsequence (like in the example before "||") to one of the stringsresults. How can I do that?

Thanks for your help!

Re: Regex

Maxim Langman2-Mar-09 11:11

Maxim Langman

2-Mar-09 11:11

If you have the same delimiter between strings, then the easiest way is to use Split() method of string class.

string str = "aaa::bbb::ccc";
string[] splittedStrings = str.Split("::");

But, if the explression is more difficult, then Regex is a good solution

Re: Regex

snorkie2-Mar-09 11:23

snorkie

2-Mar-09 11:23

Why not just use the following regex: "( \|\| )|( && )" It finds either and can be used in your split.

Hogan

Re: Regex

Dromar2-Mar-09 12:12

Dromar

2-Mar-09 12:12

Somehow that is not working...
I tried
Regex reg = new Regex("(\\|\\|)(&&)");
on
string input = "something || anything && anotherthing";
but it isnt Spliting it even once Frown | :(

Re: Regex

snorkie2-Mar-09 13:23

snorkie

2-Mar-09 13:23

Try again with the correct string Smile | :)

Regex reg = new Regex("( \|\| )|( && )");

Hogan

Re: Regex

Dromar3-Mar-09 5:37

Dromar

3-Mar-09 5:37

Oh there was an | between the brackets...

Thanks a lot, and this also solves Question 2 Smile | :)

Getting TableName in Tables of DataSet

Maxim Langman2-Mar-09 10:25

Maxim Langman

2-Mar-09 10:25

Hello,
I have a little Stored Procedure (SQL Server 2005), which returns some tables. Now, I'm getting those tables in the DataSet in my code. The problem is that I'm not getting TableName of none of the tables. All I get is a default naming convention "Table", Table1", Table2" ....
What is the way to get the TableName from SP? How can I basically know which table represents which select in the SP?
Thanks,
Maxim

Re: Getting TableName in Tables of DataSet

PIEBALDconsult2-Mar-09 12:52

PIEBALDconsult

2-Mar-09 12:52

You can't.

Re: Getting TableName in Tables of DataSet [modified]

Maxim Langman2-Mar-09 19:35

Maxim Langman

2-Mar-09 19:35

What do you mean: "you can't"? There has to be some proper way to get tables named then counting them in the SP and then reading them like myDataSet.Tables[5]. And what if SP has been changed? Will I have to recompile the whole project? BTW, If I can't then why do I need this property "TableName" at all?

modified on Tuesday, March 3, 2009 1:55 AM

Re: Getting TableName in Tables of DataSet

PIEBALDconsult3-Mar-09 3:28

PIEBALDconsult

3-Mar-09 3:28

Maxim Langman wrote:
There has to be some proper way to get tables named

There isn't. There can't be.

Maxim Langman wrote:
then why do I need this property "TableName" at all

You don't.

2 C# question

E_Gold2-Mar-09 9:59

E_Gold

2-Mar-09 9:59

Hi evryone
I have some C# question
1. how to make event and use him ?
2. how to transfer file from computer1 to computer2 (in LAN - in share folder)
I try whit File.Copy, but it isent work

thank's for any help

Re: 2 C# question

DaveyM692-Mar-09 10:32

DaveyM69

2-Mar-09 10:32

1. There are many great articles around on CodeProject and elsewhere. A search here and on google should yeild many results. I also have an article here[^] aimed at beginners to events.
2. .NET applications without some work cannot access network shares etc with good reason. You can do it using impersonation (and spplying valid credentials of a user that has permissions to access the share) or physically altering the .NET runtime security policy on each machine that requires it.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: 2 C# question

Maxim Langman2-Mar-09 11:02

Maxim Langman

2-Mar-09 11:02

1. In order to create an event in your call you should do declare two things:
a. Declare public delegate
b. Declare public event which is an instance of this delegate

public delegate void ClickHandler(int Param1, int Param2);
public event ClickHandler Click;

Then when you want to fire this event you just call it:

private void foo(){
...
...
Click(argument1, argument2);
...
}

2. File.Copy should work if you map the drive

Bitmap.LockBits !

Mohammad Dayyan2-Mar-09 8:42

Mohammad Dayyan

2-Mar-09 8:42

Hi.
Could you explain when we have to use LockBits methods in Bitmap class ?

I've read http://msdn.microsoft.com/en-us/library/system.drawing.bitmap.lockbits.aspx[^] but it doesn't describe well.

Many thanks in advance

Re: Bitmap.LockBits !

Dave Kreskowiak2-Mar-09 8:51

Dave Kreskowiak

2-Mar-09 8:51

It's not so useful in VB.NET, but it's used when accessing the bitmap contents in memory using pointers. It's good for C# and managed C++, but VB.NET has no use for it since there is no pointer support in VB.NET.

If you want an example, there is a good series of Image Processing articles by Christian Graus that shows how to use it. Just search the articles for "Image Processing for Dummies".

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: Bitmap.LockBits !

Mohammad Dayyan2-Mar-09 8:59

Mohammad Dayyan

2-Mar-09 8:59

Great, thank you very much Thumbs Up | :thumbsup:

Re: Bitmap.LockBits !

knockNrod9-Sep-10 3:08

knockNrod

9-Sep-10 3:08

I hate to be a contrarian, but that's not correct. Bob Powell has some really great documentation on GDI+. Just google Bob Powell GDI+. When there, search for LockBits.

Bitmaps are usually displayed on screen. If you're editing a portion of a bitmap that is displayed, it will be really slow because it has to perform safe edits on each pixel. Instead, you can grab the piece (even if that piece is the whole image) you want to work with and copy that piece into an array of memory and pin it there. That's what LockBits does for you. Calling SetPixel on the copied, pinned array will be much, much faster, but you have to remember to call UnlockBits so that it can be unpinned.

Without darkness, there are no dreams.
-Karla Kuban

Read the formatting from a Word document using C#

Edward Hoad2-Mar-09 8:28

Edward Hoad

2-Mar-09 8:28

Hi,

I am looking for a way to programatically read a Word document and based on the formatting, extract text. Specifically, I am searching each line in a document for a particular heading; then, extracting text if the following lines are bulleted. I would appreciate it if anyone would point me in the right direction.

Thanks in advance,

Ed

How to call a method from a running service?

s196675m2-Mar-09 6:48

s196675m

2-Mar-09 6:48

Windows has many services running. How can I call a method from a particular service from my application.
Suppose Service name "ftpsvc" is running. From my aplication I want to call a method of ftpsvc service
to see the return value.

I have some idea about Remoting, WCF. Any example code or pointing to the right direction will be helpful.
thank you.

Re: How to call a method from a running service?

Ravi Bhavnani2-Mar-09 8:10

Ravi Bhavnani

2-Mar-09 8:10

I think you may be confusing a Windows service with a web service.

A Windows service is an app that can be configured to start when the Windows starts and runs in the background as long as Windows is running. IOW, a user isn't required to be logged on in order to run the app.
A web service is an API that can be accessed over the network. A WCF web service is hosted in a service host, which is usually IIS, a Windows service, or a Windows or console app.

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

Re: How to call a method from a running service?

s196675m2-Mar-09 9:44

s196675m

2-Mar-09 9:44

Hi Thank you for your reply.
My question is not about the type of services.

I have a windows service running and suppose it has a Method (contract) called GetTime(). From another service or application,how can I call GetMethod() of the other running windows service.
Thank you

Re: How to call a method from a running service?

Ravi Bhavnani2-Mar-09 9:50

Ravi Bhavnani

2-Mar-09 9:50

s196675m wrote:
I have a windows service running and suppose it has a Method (contract) called GetTime().

Just to confirm I understand you, your Windows service has a ServiceHost that hosts the WCF service that has the GetTime() operation contract, right?

If so, just add a reference to the WCF service (make sure it's running) in your client app. You can do this through the IDE or generate the reference (i.e. the client proxy) manually using svcutil.exe. Then, just call the proxy's GetTime() method.

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

about USP to Parallel port

Member 33767902-Mar-09 6:43

Member 3376790

2-Mar-09 6:43

I want to use usb to parallel port in my C# applications
I Have one but I don't know its address.

abdallah

Returning primary key value from a FoxPro Table insert

dptalt2-Mar-09 4:36

dptalt

2-Mar-09 4:36

Does anyone know how to get the primary key value when inserting a record into a FoxPro table? Thanks.

Re: Returning primary key value from a FoxPro Table insert

Xmen Real 2-Mar-09 6:11

Xmen Real

2-Mar-09 6:11

I think you should search here[^]

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