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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 66001 to 67000 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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