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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 210001 to 211000 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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