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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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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