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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 142001 to 143000 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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