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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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