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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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