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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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