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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 217001 to 218000 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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