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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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