Multiple Parameters in LINQ to SQL - vb.net

Question

I am trying to pass several search parameters to an LINQ expression to retrieve all entries that contain one of the search items.
Example:
Dim query = From p In db.BEW_PROFIL
For Each searchItem As String In searchItems
Dim item As String = searchItem
query = query.Where(Function(p) p.NAME = item)
Next
Problem here is I don´t get any results because the Where clause looks with that code something like this.
... Where p.NAME = item1 AND p.NAME = item2
What i need is an OR between the parameters, but I don´t get it how I can achieve this.
Any help would be greatly appreciated.

Answer 1

Got it...
void Main()
{
var searchItems = new string[] { "test", "past", "most", "last", "fast", "feast", "yeast", "cast" };
var query = from p in searchItems select new MyClass { Name = p };
Predicate<MyClass> whereClause = _ => false;
foreach (var item in searchItems)
{
var searchItem = item;
Predicate<MyClass> oldClause = whereClause;
whereClause = p => p.Name == searchItem || oldClause(p);
}
query = query.Where(p => whereClause(p));
query.Dump();
}
public class MyClass
{
public MyClass() { }
public string Name { get; set; }
}
The code was ran in LINQPad, and that returned every element.
Here is that code translated to Vb.Net
Private Sub Main()
Dim searchItems = New String() {"test", "past", "most", "last", "fast", "feast", "yeast", "cast"}
Dim query = From p In searchItems Select New [MyClass]() With { .Name = p }
Dim whereClause As Predicate(Of [MyClass]) = Function(element) False
For Each item As String In searchItems
Dim searchItem = item
Dim oldClause As Predicate(Of [MyClass]) = whereClause
whereClause = Function(p) p.Name = searchItem OrElse oldClause(p)
Next
query = query.Where(Function(p) whereClause(p))
query.Dump()
End Sub
Public Class [MyClass]
Public Sub New()
End Sub
Public Property Name() As String
Get
Return m_Name
End Get
Set
m_Name = Value
End Set
End Property
Private m_Name As String
End Class