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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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