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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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