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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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