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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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