DataTable dt = new DataTable();
            dt.Columns.Add("Id", typeof(int));
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Price", typeof(decimal));
            for (int i = 0; i < 10; i++)
            {
                dt.Rows.Add(i,"Item"+i, null);
            }

            this.radGridView1.DataSource = dt;
            this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            this.radFilterView1.AssociatedControl = this.radGridView1;

        Me.RadFilterView1.FilterViewElement.LoadCategoriesAsync = False
        Me.RadGridView1.DataSource = Me.ProductsBindingSource
        Me.RadGridView1.EnableFiltering = True
        Me.RadGridView1.ShowFilteringRow = False


        AddHandler Me.RadFilterView1.FilterChanged, AddressOf Me.RadFilterView1_FilterChanged
        AddHandler Me.RadFilterView1.FilterViewElement.CategoryCreating, AddressOf Me.FilterViewElement_CategoryCreating
        AddHandler Me.RadFilterView1.FilterViewElement.CategoryCreated, AddressOf Me.FilterViewElement_CategoryCreated

        Me.RadFilterView1.AssociatedControl = Me.RadGridView1

       
        Dim filter As New FilterDescriptor With {
            .PropertyName = "ProductID",
            .Operator = FilterOperator.IsLessThanOrEqualTo,
            .Value = 5,
            .IsFilterEditor = True
        }

        Dim filter2 As New FilterDescriptor With {
            .PropertyName = "CategoryID",
            .Operator = FilterOperator.IsLessThanOrEqualTo,
            .Value = 4,
            .IsFilterEditor = True
        }
        Me.RadFilterView1.FilterDescriptors.AddRange(filter, filter2)