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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 133001 to 134000 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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