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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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