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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 174001 to 175000 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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