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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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