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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 210001 to 211000 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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