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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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