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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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