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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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