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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 222001 to 223000 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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