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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 170001 to 171000 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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