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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 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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