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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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