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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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