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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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