Search Strings

[charindal]

How can i search within a string say a description of items and would like the program to search for matching words in any order but they should relate e.g. consider this description: CEMENT AFRISAM 50KG SATCHETS....
i would want a user to lets say type in the words "SATCHETS CEMENT", the search code should be able to list all descriptions that have SATCHETS AND CEMENT in one line.

[tlhintoq]

Loops within loops checking all the suspect words against all the strings you want to search. Making use of the String.Contains method.

http://msdn.microsoft.com/en-us/library/system.string.contains.aspx

[charindal]

i m trying that but its not coming alright, i might be missing something do you have a sample code?

[Christian Binder]

Maybe you first show us what you've tried (code) and tell us the problem you're facing with your code. So I could help you finding the "something" you're missing.

[ThatThatGuy]

you can use regular expressions for checking the existence of the word in a string
with expression as ".*SATCHETS CEMENT*." which will search for the word in string and return whether the word exists....

have a look at the tutorial below if you need any help
http://msdn.microsoft.com/en-us/libr...95(VS.80).aspx is a way where you can search

[charindal]

this was an error i have re entered it below.

[charindal]

char[] splitchar = { ' ' };
            string[] str = txtstocksearch.Text.Split(splitchar);
            foreach (string item in str)
            {
                SqlDataAdapter adp = new SqlDataAdapter("select * from stock where stock_description like '%" + item + "%'  , connection.connect());
          
  
            DataSet ds = new DataSet();
            adp.Fill(ds);
            DataTable dt = ds.Tables[0];
            dataGridView2.RowHeadersVisible = false;
            dataGridView2.DataSource = dt;
            dataGridView2.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells;
            connection.connect ().Close();

[tlhintoq]

TIP: When you are writing your question, there is a button on the tool bar that wraps the [code] tags around your copy/pasted code. It helps a bunch. Its the button with a '#' on it. More on tags. They're cool. Check'em out.

[jkmyoung]

SqlDataAdapter adp = new SqlDataAdapter( "select * from stock where stock_descripti on like '%" + item + "%' , connection.conn ect());




You want something like
select * from stock where
stock_descripti on like '%" + item + "%' AND
stock_descripti on like '%" + item2 + "%' AND
stock_descripti on like '%" + item3 + "%' ....
correct?

Create the query string beforehand. For each item beyond the first, add:

"AND \n stock_descripti on like '%" + item + "%'

Then do your query.

[charindal]

I seem to have found a lead. i enabled my fulltext indexing on SQL and the problem ha been greatly minimised. however ther is still one annoying problem. how do you pass wildcards from a textbox into the select statment. e.g when in sqladmin, it is easier to type a command like select * from a where contains(b,' "cem* " '), here it will list everything that starts with cem. however, when in c# how do i incorporate the wildcard * to my text box. if i use select * from a where contains(b,' " + textbox1.tex + " *') nuthing happends

[Christian Binder]

Maybe you should use

string command = "SELECT * FROM a WHERE CONTAINS(b, ' [U]\"[/U]" + textBox1.Text+ "*[U]\"[/U] ')";

Notice the underlined \"

[charindal]

thank you very much. it seems to be behaving....