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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 160001 to 161000 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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