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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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