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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 149001 to 150000 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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