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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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