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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 137001 to 138000 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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