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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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