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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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