RadListView Filtering with RadFilter

RadFilter can be used to build complex filtering criteria by means of intuitive visual UI and depending on the data type of the underlying source fields. To use RadFilter to filter data in RadLsitView, you need to set the FilterContainerID property of RadFilter or handler the ApplyExpressions server event of RadFilter.

Using the FilterContainerID property

ASPNET

<telerik:RadFilter RenderMode="Lightweight" runat="server" ID="RadFilter1" FilterContainerID="RadListView1" />
<telerik:RadListView ID="RadListView1" DataSourceID="SqlDataSource1" PageSize="6"
    AllowPaging="True" runat="server" ItemPlaceholderID="ProductsHolder" DataKeyNames="OrderID">
    <ItemTemplate>
        <div class="rlvA" style="height: 120px; width: 270px; margin-top: 5px; margin-left: 2px;
            margin-bottom: 20px; padding-left: 10px; border-style: none">
            <fieldset style="height: 100%">
                <table>
                    <tr>
                        <td>
                            <strong>OrderID:</strong>
                            <asp:Label ID="OrderIDLabel" runat="server" Text='<%# Eval("OrderID") %>' /><br />
                            <strong>Order date:</strong>
                            <asp:Label ID="OrderDateLabel" runat="server" Text='<%# ((DateTime)Eval("OrderDate")).ToString() %>' /><br />
                            <strong>Ship city:</strong>
                            <asp:Label ID="ShipCityLabel" runat="server" Text='<%# Eval("ShipCity") %>' /><br />
                            <strong>Ship country:</strong>
                            <asp:Label ID="ShipCountryLabel" runat="server" Text='<%# Eval("ShipCountry") %>' /><br />
                            <strong>Ship name:</strong>
                            <asp:Label ID="ShipNameLabel" runat="server" Text='<%# Eval("ShipName") %>' /><br />
                        </td>
                        <td>
                            <img src="Img/ordertracking.gif" alt="" />
                        </td>
                    </tr>
                </table>
            </fieldset>
        </div>
    </ItemTemplate>
    <LayoutTemplate>
        <fieldset>
            <legend style="margin-left: 20px">Orders</legend>
            <div class="RadListView RadListViewFloated RadListView_Default">
                <div class="rlvFloated">
                    <div id="ProductsHolder" runat="server">
                    </div>
                </div>
                <div>
                    <telerik:RadDataPager RenderMode="Lightweight" ID="RadDataPager1" PageSize="6" runat="server">
                        <Fields>
                            <telerik:RadDataPagerButtonField FieldType="Numeric" />
                        </Fields>
                    </telerik:RadDataPager>
                </div>
            </div>
        </fieldset>
    </LayoutTemplate>
</telerik:RadListView>
<asp:SqlDataSource runat="server" ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
    SelectCommand="Select OrderID, OrderDate, ShipVia, ShipName, ShipAddress, ShipCity, ShipCountry FROM Orders">
</asp:SqlDataSource>

Handling the AppyExpressions event handler

ASPNET

<telerik:RadFilter RenderMode="Lightweight" runat="server" ID="RadFilter1" OnApplyExpressions="RadFilter1_AppyExpressions">
    <FieldEditors>
        <telerik:RadFilterNumericFieldEditor DataType="System.Int32" FieldName="OrderID" />
        <telerik:RadFilterDateFieldEditor DataType="System.DateTime" FieldName="OrderDate" />
        <telerik:RadFilterTextFieldEditor DataType="System.String" FieldName="ShipCity" />
        <telerik:RadFilterTextFieldEditor DataType="System.String" FieldName="ShipCountry" />
        <telerik:RadFilterTextFieldEditor DataType="System.String" FieldName="ShipName" />
    </FieldEditors>
</telerik:RadFilter>
<telerik:RadListView ID="RadListView1" DataSourceID="SqlDataSource1" PageSize="6"
    AllowPaging="True" runat="server" ItemPlaceholderID="ProductsHolder" DataKeyNames="OrderID">
    <ItemTemplate>
        <div class="rlvA" style="height: 120px; width: 270px; margin-top: 5px; margin-left: 2px;
            margin-bottom: 20px; padding-left: 10px; border-style: none">
            <fieldset style="height: 100%">
                <table>
                    <tr>
                        <td>
                            <strong>OrderID:</strong>
                            <asp:Label ID="OrderIDLabel" runat="server" Text='<%# Eval("OrderID") %>' /><br />
                            <strong>Order date:</strong>
                            <asp:Label ID="OrderDateLabel" runat="server" Text='<%# ((DateTime)Eval("OrderDate")).ToString() %>' /><br />
                            <strong>Ship city:</strong>
                            <asp:Label ID="ShipCityLabel" runat="server" Text='<%# Eval("ShipCity") %>' /><br />
                            <strong>Ship country:</strong>
                            <asp:Label ID="ShipCountryLabel" runat="server" Text='<%# Eval("ShipCountry") %>' /><br />
                            <strong>Ship name:</strong>
                            <asp:Label ID="ShipNameLabel" runat="server" Text='<%# Eval("ShipName") %>' /><br />
                        </td>
                        <td>
                            <img src="Img/ordertracking.gif" alt="" />
                        </td>
                    </tr>
                </table>
            </fieldset>
        </div>
    </ItemTemplate>
    <LayoutTemplate>
        <fieldset>
            <legend style="margin-left: 20px">Orders</legend>
            <div class="RadListView RadListViewFloated RadListView_Default">
                <div class="rlvFloated">
                    <div id="ProductsHolder" runat="server">
                    </div>
                </div>
                <div>
                    <telerik:RadDataPager RenderMode="Lightweight" ID="RadDataPager1" PageSize="6" runat="server">
                        <Fields>
                            <telerik:RadDataPagerButtonField FieldType="Numeric" />
                        </Fields>
                    </telerik:RadDataPager>
                </div>
            </div>
        </fieldset>
    </LayoutTemplate>
</telerik:RadListView>
<asp:SqlDataSource runat="server" ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
    SelectCommand="Select OrderID, OrderDate, ShipVia, ShipName, ShipAddress, ShipCity, ShipCountry FROM Orders">
</asp:SqlDataSource>

C#

protected void RadFilter1_AppyExpressions(object sender, RadFilterApplyExpressionsEventArgs e)
{
    RadFilterListViewQueryProvider provider = new RadFilterListViewQueryProvider(new List<RadFilterGroupOperation>() { RadFilterGroupOperation.And, RadFilterGroupOperation.Or }); 
    provider.ProcessGroup(e.ExpressionRoot); 
    RadListView1.FilterExpressions.Add(provider.ListViewExpressions[0]); 
    RadListView1.Rebind();
}

VB.NET

Protected Sub RadFilter1_AppyExpressions(ByVal sender As Object, ByVal e As RadFilterApplyExpressionsEventArgs)
    Dim provider As New RadFilterListViewQueryProvider(New List(Of RadFilterGroupOperation)())
    provider.ProcessGroup(e.ExpressionRoot)
    RadListView1.FilterExpressions.Add(provider.ListViewExpressions(0))
    RadListView1.Rebind()
End Sub	

Find a live demo illustrating the integration of RadFilter with RadListView here.