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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 207001 to 208000 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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