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Hello

I have read some tutorial about linq to sql and working with stored procedure in linq. Actually a lot of them work on just one parameter and searching on just one table. Now I like to make an advanced search page in ASP.NET with linq data model and advance searching on 4 to 6 parameter (text box, drop down list,) on joined tables. Please help how I can do that, or some sample (application) can be very helpful.

Best regards.

Posted 14-Oct-11 19:08pm

alimahdipour

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Ed Nutting 15-Oct-11 7:09am

Search CP articles or usae Google - this has been done, you just have to search a bit.

alimahdipour 15-Oct-11 10:56am

Thanks I have searched a lot in Google before but i could not find that. actually i think my "key words" for searching are not correct.please address me one link or good "key word" for searching this title in Google.
thanks in advanced.

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Amir Mahfoozi · Accepted Answer · 2011-10-15T22:11:00

You should make your search tables into a one single view by joining them as much as possible(in Database)
After bringing your view into data layer and business layer you can apply the criteria by LINQ expressions very easily.
Just separate search items by AND operators.
So when user clicks on search button you should do something like this :

... MySearchView.Where(i=> i.Name == NameCriteria.Text && i.Country == DropDownList.SelectedVaule && ... );

or if your Data layer supports navigation do something like this :

... Country.Where(i => i.Country == DropDownList.SelectedVaule).Students.Where(i=> i.Name == NameCriteria.Text ) ...

(take care of null result in each step)

and redirect the results to a grid or something like that.

Hope it gives you some clues.