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How can I display a summary of info from a Text field in DB?

Posted on 2013-02-06
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Last Modified: 2013-02-08
Hi I want to display only the first 200 chars of text stored in the DB as a text field.  How do I do this so that it is cut off after a word and not in the middle of a word??  Also, I am displaying the text in a GridView.
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Question by:Lorna70
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4 Comments
 
LVL 42

Accepted Solution

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sedgwick earned 200 total points
ID: 38859034
assume you have the text insome variable after your query succeeds:
string longTxtFromDB = "extremely long text more than 200 characters ... .. . . ..  ..";
int i = longTxtFromDB.IndexOf(' ', 200); //find the index of first occurrence of space from the 200th characters
string cutOffString = longTxtFromDB.Substring(0,i);//substring the original txt

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LVL 42

Expert Comment

by:sedgwick
ID: 38859083
if you want that the total of characters after the substring will be always less or equal to 200 then you need something a bit different:

string longTxtFromDB = "extremely long text more than 200 characters ... .. . . ..  ..";
var st = new string(longTxtFromDB.Reverse().ToArray());
                int i = st.IndexOf(' ', longTxtFromDB.Length - 20);
               string cutOffString = longTxtFromDB.Substring(0, longTxtFromDB.Length-i);

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btw, i used 20 just for testing, you should first check if the string length is more than 200:

string longTxtFromDB = "extremely long text more than 200 characters ... .. . . ..  ..";
if(longTxtFromDB.Length> 20){
var st = new string(longTxtFromDB.Reverse().ToArray());
                int i = st.IndexOf(' ', longTxtFromDB.Length - 20);
               string cutOffString = longTxtFromDB.Substring(0, longTxtFromDB.Length-i);
}

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LVL 10

Assisted Solution

by:Monica P
Monica P earned 50 total points
ID: 38863117
while fetching and binding itself u can get only specified length of values from the database


it takes 10 characters

SELECT  SUBSTRING(country,1,10) as country
FROM  countries 

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Author Closing Comment

by:Lorna70
ID: 38867256
Thanks - I didn't use the T-SQL solution but didn't know about SUBSTRING so thank you Akila :-)
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