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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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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