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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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