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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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