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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 222001 to 223000 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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