string manipulation in c#

[uglyeyes]

I have like 1000 rows returning from database is string.split and looping to get the 7 words appropriate way to go? could you please send me an efficient way to do this so it could load in web page faster

[Abhijit Jana]

uglyeyes wrote:

I have like 1000 rows returning from database is string.split and looping to get the 7 words appropriate way to go?

Then why you are not doing this thing in DB End ? Make the stored procedure which will return those first 7 words from DB rather than whole sentence.

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[uglyeyes]

I am not very good in DB could you pleae help? and do I really need a stored proc for this. can it be not done in a single line?

[Tripathi Swati]

split using space n make one for loop which will go upto lenght where take one variable which is going up to 7 and again reset to 1. dis manner u can get. and yes store this result in list ...

Reasons are not Important but Results are Important. Swati Tripathi

[Abhijit Jana]

uglyeyes wrote:

could you pleae help?

PL SQL Function :

CREATE FUNCTION SplitString
(
-- Add the parameters for the function here
@myString varchar(500),
@deliminator varchar(10)
)
RETURNS
@ReturnTable TABLE
(
-- Add the column definitions for the TABLE variable here
[id] [int] IDENTITY(1,1) NOT NULL,
[part] [varchar](50) NULL
)
AS
BEGIN
Declare @iSpaces int
Declare @part varchar(50)

    --initialize spaces
    Select @iSpaces = charindex(@deliminator,@myString,0)
    While @iSpaces > 0

    Begin
        Select @part = substring(@myString,0,charindex(@deliminator,@myString,0))

        Insert Into @ReturnTable(part)
        Select @part

Select @myString = substring(@mystring,charindex(@deliminator,@myString,0)+ len(@deliminator),len(@myString) - charindex(' ',@myString,0))


        Select @iSpaces = charindex(@deliminator,@myString,0)
    end

    If len(@myString) > 0
        Insert Into @ReturnTable
        Select @myString

RETURN 

END
GO

And Try with Example

Select * From SplitString('Hello John Smith',' ')

Original Source[^] :)

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[uglyeyes]

hello either in sql or c# a code hint will be really helpful. I prefer in sql thou.

[Abhijit Jana]

uglyeyes wrote:

hello either in sql or c# a code hint will be really helpful. I prefer in sql thou.

Try with sample that I have provided to you !

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[uglyeyes]

this one worked. DECLARE @mystring VARCHAR(200) DECLARE @count INT DECLARE @max INT DECLARE @space INT SET @mystring = 'A quick sly fox jumped over the lazy brown dog' SET @count = 0 SET @max = 7 SET @space = 1 SET NOCOUNT ON WHILE @count < @max BEGIN SELECT @space = CHARINDEX (' ', @mystring , @space + 1) -- SELECT 'position: ', @space SET @count = @count + 1 END SELECT LEFT(@mystring,@space) SET NOCOUNT OFF

[Abhijit Jana]

:thumbsup:

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[Abhijit Jana]

Why somebody voted it as 1 ? Any Proper reason ?

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[sashidhar]

May be They Dont like U..! ;P Check now..!

LatestArticle :Log4Net Why Do Some People Forget To Mark as Answer .If It Helps.

[Abhijit Jana]

:laugh: .

Abhijit Jana | Codeproject MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

[uglyeyes]

Ok, I think via database it works but I need to use this logic via c# code. could someone please show me how to write a function that will give me same output. thanks in advance below code runs two times and prints it twice. how can i make it more efficient so it loads faster and dispalys only once?

public string getAdBrief(string text)
{
string s = "";
string[] words = text.Split(' ');
for (int i = 0; i < 7; i++)
{
s +=words[i] + ' ';
}
return s;
}

modified on Wednesday, November 18, 2009 9:30 PM

[uglyeyes]

never mind this helped

public static string GetFirstFewWords(string input, int numberWords)
{
if (input.Split(new char[] { ' ' },
StringSplitOptions.RemoveEmptyEntries).Length > numberWords)
{
// Number of words we still want to display.
int words = numberWords;
// Loop through entire summary.
for (int i = 0; i < input.Length; i++)
{
// Increment words on a space.
if (input[i] == ' ')
{
words--;
}
// If we have no more words to display, return the substring.
if (words == 0)
{
return input.Substring(0, i);
}
}
return string.Empty;
}
else
{
return input;
}
}