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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 92001 to 93000 of 300000 Page: of 300 GoPage size:

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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>

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