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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 223001 to 224000 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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