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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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