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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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