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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 219001 to 220000 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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