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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 220001 to 221000 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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