Imports DevExpress.Data.Helpers
Imports DevExpress.Data.Filtering
Imports DevExpress.XtraGrid.Views.Base
Imports System.Reflection

Namespace LookupGrid
    Public Class LookupGridView
        Inherits DevExpress.XtraGrid.Views.Grid.GridView

        Private _simpleSearch As Boolean
        Public Sub New()
            Me.New(Nothing)
        End Sub
        Public Property SimpleSearch() As Boolean
            Get
                Return _simpleSearch
            End Get
            Set(ByVal value As Boolean)
                _simpleSearch = value
            End Set
        End Property

        Public Sub New(ByVal grid As DevExpress.XtraGrid.GridControl)
            MyBase.New(grid)
            ' put your initialization code here
        End Sub
        Protected Overrides ReadOnly Property ViewName() As String
            Get
                Return "LookupGridView"
            End Get
        End Property
        Protected Overrides Function ConvertGridFilterToDataFilter(ByVal criteria As CriteriaOperator) As CriteriaOperator
            Dim originalFindFilterText As String = Convert.ToString(GetType(ColumnView).InvokeMember("findFilterText", BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.GetField, Nothing, Me, New Object() {}))
            If SimpleSearch Then
                If Not (String.IsNullOrEmpty(originalFindFilterText)) Then
                    GetType(ColumnView).InvokeMember("findFilterText", BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.SetField, Nothing, Me, New Object() {String.Concat("""", originalFindFilterText, """")})
                End If
                Dim findCriteria As CriteriaOperator = Nothing
                Dim _lastParserResults As FindSearchParserResults = Nothing
                If Not (String.IsNullOrEmpty(FindFilterText)) Then
                    _lastParserResults = (New FindSearchParser()).Parse(FindFilterText, GetFindToColumnsCollection())
                    GetType(ColumnView).GetField("lastParserResults", BindingFlags.NonPublic Or BindingFlags.Instance).SetValue(Me, _lastParserResults)
                    If Not IsServerMode Then
                        _lastParserResults.AppendColumnFieldPrefixes()
                    End If
                    findCriteria = DxFtsContainsHelperAlt.Create(_lastParserResults, FilterCondition.Contains, IsServerMode)
                End If
                GetType(ColumnView).InvokeMember("findFilterText", BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.SetField, Nothing, Me, New Object() {originalFindFilterText})
                Return criteria And findCriteria
            End If
            Return MyBase.ConvertGridFilterToDataFilter(criteria)
        End Function
    End Class

End Namespace