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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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