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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 242001 to 243000 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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