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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 203001 to 204000 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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