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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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