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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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