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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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