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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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