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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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