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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 224001 to 225000 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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