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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 68001 to 69000 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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