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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 132001 to 133000 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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