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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 164001 to 165000 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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