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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 171001 to 172000 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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