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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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