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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 218001 to 219000 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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