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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 35001 to 36000 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="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ 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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