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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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