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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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