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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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