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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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