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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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