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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 149001 to 150000 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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