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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 84001 to 85000 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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