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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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