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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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