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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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