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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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