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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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