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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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