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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 60001 to 61000 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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