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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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