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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 94001 to 95000 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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