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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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