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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 139001 to 140000 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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