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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 132001 to 133000 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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