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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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