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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 69001 to 70000 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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