New to Telerik UI for ASP.NET AJAX? Download free 30-day trial

Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Owner	Pascale Cartrain	France	1 2 3 4 5
2	Marketing Manager	Pascale Cartrain	Brazil	1 2 3 4 5
3	Marketing Manager	Hanna Moos	Austria	1 2 3 4 5
4	Accounting Manager	Pascale Cartrain	Brazil	1 2 3 4 5
5	Sales Representative	Georg Pipps	Bulgaria	1 2 3 4 5
6	Owner	Georg Pipps	Brazil	1 2 3 4 5
7	Sales Consultant	Antonio Moreno	England	1 2 3 4 5
8	Accounting Manager	Matti Karttunen	Germany	1 2 3 4 5
9	Accountant	Georg Pipps	Germany	1 2 3 4 5
10	Owner	Paul Henriot	Germany	1 2 3 4 5
11	Marketing Assistant	Georg Pipps	Italy	1 2 3 4 5
12	Accountant	Jaime Yorres	Italy	1 2 3 4 5
13	Owner	Georg Pipps	Argentina	1 2 3 4 5
14	Marketing Assistant	Pascale Cartrain	Germany	1 2 3 4 5
15	Accountant	Patricio Simpson	England	1 2 3 4 5
16	Owner	Antonio Moreno	Germany	1 2 3 4 5
17	Sales Manager	Elizabeth Lincoln	Italy	1 2 3 4 5
18	Sales Manager	Paul Henriot	Germany	1 2 3 4 5
19	Sales Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
20	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
21	Sales Agent	Georg Pipps	USA	1 2 3 4 5
22	Accountant	Jaime Yorres	Brazil	1 2 3 4 5
23	Sales Consultant	Matti Karttunen	Spain	1 2 3 4 5
24	Marketing Assistant	Paul Henriot	USA	1 2 3 4 5
25	Marketing Manager	Hanna Moos	England	1 2 3 4 5
26	Sales Associate	Patricio Simpson	Austria	1 2 3 4 5
27	Accounting Manager	Hanna Moos	USA	1 2 3 4 5
28	Sales Associate	Georg Pipps	England	1 2 3 4 5
29	Marketing Assistant	Jaime Yorres	Austria	1 2 3 4 5
30	Marketing Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
31	Sales Associate	Antonio Moreno	Germany	1 2 3 4 5
32	Accountant	Pascale Cartrain	Bulgaria	1 2 3 4 5
33	Accounting Manager	Georg Pipps	USA	1 2 3 4 5
34	Marketing Assistant	Elizabeth Lincoln	England	1 2 3 4 5
35	Marketing Manager	Hanna Moos	France	1 2 3 4 5
36	Marketing Manager	Howard Snyder	France	1 2 3 4 5
37	Marketing Manager	Matti Karttunen	France	1 2 3 4 5
38	Marketing Manager	Pascale Cartrain	Spain	1 2 3 4 5
39	Sales Agent	Hanna Moos	Argentina	1 2 3 4 5
40	Accounting Manager	Hanna Moos	Austria	1 2 3 4 5
41	Sales Consultant	Howard Snyder	Spain	1 2 3 4 5
42	Sales Representative	Patricio Simpson	Argentina	1 2 3 4 5
43	Accountant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
44	Marketing Manager	Georg Pipps	USA	1 2 3 4 5
45	Accountant	Georg Pipps	Germany	1 2 3 4 5
46	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
47	Owner	Matti Karttunen	Brazil	1 2 3 4 5
48	Marketing Manager	Georg Pipps	England	1 2 3 4 5
49	Sales Representative	Howard Snyder	Brazil	1 2 3 4 5
50	Accountant	Patricio Simpson	Argentina	1 2 3 4 5
51	Accountant	Hanna Moos	Germany	1 2 3 4 5
52	Marketing Manager	Hanna Moos	USA	1 2 3 4 5
53	Marketing Assistant	Hanna Moos	Spain	1 2 3 4 5
54	Owner	Hanna Moos	Germany	1 2 3 4 5
55	Marketing Assistant	Jaime Yorres	France	1 2 3 4 5
56	Accountant	Antonio Moreno	USA	1 2 3 4 5
57	Owner	Matti Karttunen	Brazil	1 2 3 4 5
58	Sales Manager	Paul Henriot	Brazil	1 2 3 4 5
59	Owner	Matti Karttunen	England	1 2 3 4 5
60	Marketing Manager	Hanna Moos	Germany	1 2 3 4 5
61	Accounting Manager	Elizabeth Lincoln	Germany	1 2 3 4 5
62	Accountant	Matti Karttunen	USA	1 2 3 4 5
63	Sales Consultant	Hanna Moos	Brazil	1 2 3 4 5
64	Sales Agent	Pascale Cartrain	USA	1 2 3 4 5
65	Sales Associate	Paul Henriot	Argentina	1 2 3 4 5
66	Sales Manager	Paul Henriot	USA	1 2 3 4 5
67	Sales Associate	Patricio Simpson	England	1 2 3 4 5
68	Sales Consultant	Hanna Moos	England	1 2 3 4 5
69	Sales Agent	Paul Henriot	Spain	1 2 3 4 5
70	Sales Associate	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
71	Sales Consultant	Pascale Cartrain	Spain	1 2 3 4 5
72	Sales Agent	Matti Karttunen	France	1 2 3 4 5
73	Accounting Manager	Georg Pipps	Bulgaria	1 2 3 4 5
74	Sales Associate	Pascale Cartrain	Spain	1 2 3 4 5
75	Sales Consultant	Georg Pipps	Spain	1 2 3 4 5
76	Sales Manager	Georg Pipps	England	1 2 3 4 5
77	Sales Agent	Howard Snyder	Bulgaria	1 2 3 4 5
78	Sales Associate	Antonio Moreno	Bulgaria	1 2 3 4 5
79	Sales Consultant	Jaime Yorres	Spain	1 2 3 4 5
80	Sales Agent	Antonio Moreno	England	1 2 3 4 5
81	Accountant	Jaime Yorres	Austria	1 2 3 4 5
82	Owner	Paul Henriot	USA	1 2 3 4 5
83	Marketing Manager	Hanna Moos	Argentina	1 2 3 4 5
84	Marketing Manager	Matti Karttunen	Argentina	1 2 3 4 5
85	Sales Agent	Antonio Moreno	USA	1 2 3 4 5
86	Sales Associate	Georg Pipps	Italy	1 2 3 4 5
87	Accounting Manager	Hanna Moos	Germany	1 2 3 4 5
88	Owner	Elizabeth Lincoln	Germany	1 2 3 4 5
89	Sales Consultant	Patricio Simpson	Germany	1 2 3 4 5
90	Sales Agent	Howard Snyder	Austria	1 2 3 4 5
91	Owner	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
92	Marketing Manager	Pascale Cartrain	France	1 2 3 4 5
93	Sales Representative	Howard Snyder	Austria	1 2 3 4 5
94	Accountant	Pascale Cartrain	Spain	1 2 3 4 5
95	Sales Associate	Howard Snyder	France	1 2 3 4 5
96	Sales Agent	Paul Henriot	Argentina	1 2 3 4 5
97	Accountant	Antonio Moreno	Brazil	1 2 3 4 5
98	Marketing Manager	Hanna Moos	Germany	1 2 3 4 5
99	Accountant	Georg Pipps	Brazil	1 2 3 4 5
100	Accountant	Paul Henriot	USA	1 2 3 4 5


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 of 300000 Page: of 300 GoPage size:

Sort Ascending
Sort Descending
Clear Sorting
Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

Support & Learning Resources

Find Assistance

Submit a support ticket if you have an active license or trial
Post in the forum if you don't have access to support

Virtualization

Related Resources

Support & Learning Resources

Find Assistance