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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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