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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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