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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 177001 to 178000 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