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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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