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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 219001 to 220000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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