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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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