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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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