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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 147001 to 148000 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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