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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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