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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 140001 to 141000 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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