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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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