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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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