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How can I use list in where clues in Entity Framework that list contain my searching value.

List<String> Search_option= new List<string>();
var Data= from a in Db_table select a;

And I also use this code too:

var Data= from a in Db_table where(Search_option.contains(a.Field.Tostring())) select a;

Posted 8-Feb-12 3:43am
Edited 8-Feb-12 5:49am
BobJanova at 8-Feb-12 11:24am
What's the question? Does your second code sample not work?
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Solution 1

you can use LINQ for searching in a LIST<> object
Search_option.Any(x => x.value == "a")
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Solution 2

I Suggest you can use DropdownList for your Parameters

markup in line
<asp:dropdownlist id="ddlSearchOption" runat="server">
 <asp:listitem text="-- Select One --" value="" selected="True"></asp:listitem>
 <asp:listitem text="A" value="A"></asp:listitem>
 <asp:listitem text="B" value="B"></asp:listitem>

Code Behind
var Data = from a in Db_table
           where a.fieldName == this.ddlSearchOption.SelectedValue
           select a;
Other Option
var Data = Db_table.Where(a => a.fieldName.Contains(this.ddlSearchOption.SelectedValue).ToList();

Hope this will help you
don't forget to vote

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