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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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