How to make search button using linq in asp.net

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I need to make "search button" using linq in ASP.NET, but I can't know how to do that.

I'm using this code, but the result didn't appear: the code is:

C#

if(txtSearch.Text !=null)
{
   string query = string.Format("select * from PROJECTS where {0} like '%{1}%'"
                                                               , sender, e);
    query.ToList();
}

Posted 14-Mar-15 23:16pm

ahmed eltaib

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Maciej Los 15-Mar-15 5:35am

The code you provided does not use Linq query. It creates sql query string instead.

2 solutions

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Maciej Los · Answer 1 · 2015-03-14T23:55:00

Please, read my comment to the question.

I'd suggest to read this: ASP.NET - LINQ[^]
Using LINQ to SQL (Part 1)[^]
Simple Tutorial with example of using LINQ to SQL in ASP.Net Website using C# and VB.Net[^]

Assuming that you want to create queries on the fly, you might be interested in createing dynamic queries. Please, see:
Dynamic LINQ (Part 1: Using the LINQ Dynamic Query Library)[^]
Dynamic LINQ Query in C#[^]
Dynamic Query Sample[^]

AbuEhab · Answer 2 · 2015-03-15T03:29:00

Solution 2

var q = ( from c in db.PRODUCT where c.ProductName == textBox1.Text select c).ToList();

Posted 15-Mar-15 3:29am

AbuEhab