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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 245001 to 246000 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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