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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 170001 to 171000 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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