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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 113001 to 114000 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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