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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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