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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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