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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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