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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 218001 to 219000 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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