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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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