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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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