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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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