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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 248001 to 249000 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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