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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 69001 to 70000 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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