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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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