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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 64001 to 65000 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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