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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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