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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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