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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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