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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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