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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 229001 to 230000 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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