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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 210001 to 211000 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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