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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 145001 to 146000 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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