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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 63001 to 64000 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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