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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 142001 to 143000 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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