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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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