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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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