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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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