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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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