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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 242001 to 243000 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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