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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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