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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 158001 to 159000 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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