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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 164001 to 165000 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