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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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