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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 136001 to 137000 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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