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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 66001 to 67000 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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