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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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