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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 147001 to 148000 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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