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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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