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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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