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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 215001 to 216000 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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