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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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