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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 243001 to 244000 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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