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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 194001 to 195000 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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