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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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