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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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