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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 170001 to 171000 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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