Parsing a String (foreach)

[Shaitan00]

Given a string called Format which would be of the form

string Format = �[Col1] : [Col2] : [Col3] : ���.. [ColX]�

 

I need to create a method to count the # of Columns the string defines [located between the [x]'s].

 

Any clues?

Edited December 23, 2003 by Shaitan00

[AlexCode]

I would use the Split method of the string...

If you use it with the Char ":" it will create an array with all [x]'s, then you just have to "ask" the array how many object it has...

 

This will show a messagebox with the counting:

Dim a() As String = Format.Split(":")
MessageBox.Show(a.Length)

 

Alex :D

Edited December 23, 2003 by AlexCode

[Shaitan00]

Amazing idea, that is exactly the type of method I needed [parsing was driving me nutz].

 

This is the code I am trying to use (given your example):

string[] arrCols = format.Split(" : ");

 

 

However it generates the following errors:

- The best overloaded method match for 'string.Split(params char[])' has some invalid arguments

- Argument '1': cannot convert from 'string' to 'char[]'

 

 

Any clues?

[AlexCode]

the parameter on the Split method can't be a string... it has the be a char ... and chars can't have more than 1 character...

 

use:

string[] arrCols = format.Split(":");

 

if you then want to take spaces use the Trim method on the string...

 

 

Alex :D

[dynamic_sysop]

		char[] cr="[]:".ToCharArray();
		string[] Format = "[Col1] : [Col2] : [Col3] : [ColX]".Split(cr);
		foreach(string s in Format)
		{
			Console.WriteLine(s);
		}

[Bucky]

dynaimc_sysop, that will return a bunch of blank array elements,

because the string will be split at any one of those character.

So, for example, the array elements would be "", "Col1", " ", " ",

etc. I believe the best method is to use the Split method of the

Regex class.

 

string[] columns = System.Text.RegularExpressions.Regex.Split("[Col1] : [Col2] : [Col3] : [ColX]", " : ")

foreach (string column in columns) {
 // do whatever with column
}