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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 110001 to 111000 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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