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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 215001 to 216000 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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