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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 174001 to 175000 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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