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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 219001 to 220000 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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