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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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