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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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