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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 170001 to 171000 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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