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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 63001 to 64000 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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