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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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