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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 223001 to 224000 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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