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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ 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