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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 238001 to 239000 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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