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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 196001 to 197000 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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