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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 134001 to 135000 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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