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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 158001 to 159000 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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