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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 159001 to 160000 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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