📄 sel.htm
字号:
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Programmatically Making Selections in a JTable Component (Java Developers Almanac Example)
</TITLE>
<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
<META CONTENT="Addison-Wesley/Patrick Chan" NAME="OWNER">
<META CONTENT="3/20/02" NAME="revision">
<META CONTENT="no-cache" HTTP-EQUIV="Pragma">
<LINK href="/almanac.css" media="screen" type="text/css" rel="stylesheet">
</HEAD>
<BODY>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD></TD>
</TR>
</TABLE>
<br>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD></TD>
</TR>
<TR>
<TD rowspan="3"><A HREF="/?l=ex"><IMG BORDER="0" ALIGN="BOTTOM" HSPACE="10" SRC="/egs/almanac14a.jpg"></A></TD><TD VALIGN="top">
<h1>The Java Developers Almanac 1.4</h1>
<br>
Order this book from <a href="/cgi-bin/scripts/redirect.pl?l=ex&url=http://www.amazon.com/exec/obidos/ASIN/0201752808/xeo">Amazon</a>.
</TD>
</TR>
<TR>
<TD align="right" valign="bottom">
<FORM method="get" action="/cgi-bin/search/find.pl">
<INPUT size="25" name="words" type="text"><INPUT value="Search" type="submit">
</FORM>
</TD>
</TR>
</TABLE>
<HR color="#6666cc">
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD valign="top"><script type="text/javascript">
<!--
google_ad_client = "pub-6001183370374757";
google_ad_width = 120;
google_ad_height = 600;
google_ad_format = "120x600_as";
google_ad_channel = "4777242811";
google_ad_type = "text_image";
google_color_border = "FFFFFF";
google_color_bg = "FFFFFF";
google_color_link = "6666CC";
google_color_url = "6666CC";
google_color_text = "000000";
//--></script><script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javascript"></script></TD><TD> </TD><TD valign="top">
<DIV ALIGN="LEFT">
<A HREF="/">Home</A>
>
<A HREF="../index.html">List of Packages</A>
>
<A HREF="../javax.swing.table/pkg.html">javax.swing.table</A><font color="#666666" class="xsmall-font">
[62 examples]
</font>
>
<B><A HREF="../javax.swing.table/pkg.html#Selection">Selection</A></B><font color="#666666" class="xsmall-font">
[6 examples]
</font>
</DIV><P>
<h3>e941. Programmatically Making Selections in a JTable Component</h3>
To select columns, <code>setColumnSelectionInterval()</code>,
<code>addColumnSelectionInterval()</code>, and
<code>removeColumnSelectionInterval()</code> are available. However, these
only work if <code>columnSelectionAllowed</code> is true and
<code>rowSelectionAllowed</code> is false. This also applies to rows.
<P> To select individual cells or blocks of cells, use
<code>changeSelection()</code>. However, both <code>columnSelectionAllowed</code> and
<code>rowSelectionAllowed</code> must be false.
<P> These selection methods observe the setting of the selection
mode. For example, if the selection mode is <code>SINGLE_SELECTION</code>,
only a single row, column, or cell can be made. See
<a href="../javax.swing.table/MultiSel.html" class="eglink"><b>e940</b> Enabling Single or Multiple Selections in a JTable Component</a> for more information on
selection modes.
<pre> int rows = <font color="#0066ff"><i>10</i></font>;
int cols = <font color="#0066ff"><i>5</i></font>;
JTable table = new JTable(rows, cols);
// Use this mode to demonstrate the following examples
table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
// The following column selection methods work only if these
// properties are set this way
table.setColumnSelectionAllowed(true);
table.setRowSelectionAllowed(false);
// Select a column - column 0
table.setColumnSelectionInterval(<font color="#0066ff"><i>0</i></font>, <font color="#0066ff"><i>0</i></font>);
// Select an additional range of columns - columns 1 to 2
table.addColumnSelectionInterval(<font color="#0066ff"><i>1</i></font>, <font color="#0066ff"><i>2</i></font>);
// Deselect a range of columns - columns 0 to 1
table.removeColumnSelectionInterval(<font color="#0066ff"><i>0</i></font>, <font color="#0066ff"><i>1</i></font>);
// The following row selection methods work only if these
// properties are set this way
table.setColumnSelectionAllowed(false);
table.setRowSelectionAllowed(true);
// Select a row - row 0
table.setRowSelectionInterval(<font color="#0066ff"><i>0</i></font>, <font color="#0066ff"><i>0</i></font>);
// Select an additional range of rows - rows 1 to 2
table.addRowSelectionInterval(<font color="#0066ff"><i>1</i></font>, <font color="#0066ff"><i>2</i></font>);
// Deselect a range of rows - rows 0 to 1
table.removeRowSelectionInterval(<font color="#0066ff"><i>0</i></font>, <font color="#0066ff"><i>1</i></font>);
// The following cell selection methods work only if these
// properties are set this way
table.setColumnSelectionAllowed(true);
table.setRowSelectionAllowed(true);
// Select a cell: cell (2,1)
int row = <font color="#0066ff"><i>2</i></font>;
int col = <font color="#0066ff"><i>1</i></font>;
boolean toggle = false;
boolean extend = false;
table.changeSelection(row, col, toggle, extend);
// Extend the selection to include all cells between (2,1) to (5,3)
row = <font color="#0066ff"><i>5</i></font>;
col = <font color="#0066ff"><i>3</i></font>;
toggle = false;
extend = true;
table.changeSelection(row, col, toggle, extend);
// Deselect a cell: cell (3,2)
// All cells in the row and column containing (3,2) are deselected.
row = <font color="#0066ff"><i>3</i></font>;
col = <font color="#0066ff"><i>2</i></font>;
toggle = true;
extend = false;
table.changeSelection(row, col, toggle, extend);
// This method actually toggles the selection state so that
// if it were called again, it exactly reverses the first call.
// Select cell (3,2) as well as the other cells that
// were deselected in the first call.
toggle = true;
extend = false;
table.changeSelection(row, col, toggle, extend);
// Select all cells
table.selectAll();
// Deselect all cells
table.clearSelection();
</pre>
<P><table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td bgcolor="#6666cc" align="center"><font color="#ffffff">
<b>Related Examples</b></font></td>
</tr>
</table>
e939. <a class="eglink" href="SelRowCol.html?l=rel">
Enabling Row, Column, or Cell Selections in a JTable Component
</a>
<br>
e940. <a class="eglink" href="MultiSel.html?l=rel">
Enabling Single or Multiple Selections in a JTable Component
</a>
<br>
e942. <a class="eglink" href="GetSel.html?l=rel">
Getting the Selected Cells in a JTable Component
</a>
<br>
e943. <a class="eglink" href="NoSel.html?l=rel">
Disabling Selections in a JTable Component
</a>
<br>
e944. <a class="eglink" href="GetAnchor.html?l=rel">
Getting the Anchor Cell in a JTable Component
</a>
<br>
<table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td align="left">
<br>
See also:
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Cells">
Cells
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Column%20Heads">
Column Heads
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Columns">
Columns
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Editing">
Editing
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Events">
Events
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Layout">
Layout
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Rows">
Rows
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Scrolling">
Scrolling
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Sorting">
Sorting
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Table%20Model">
Table Model
</a>
<a class="eglink" href="/egs/javax.swing.table/pkg.html?l=rel#Tool%20Tips">
Tool Tips
</a>
</td>
</tr>
</table>
<br>
<br>
<FONT class="xsmall-font">
© 2002 Addison-Wesley.
</FONT></TD><TD> </TD><TD valign="top"><A href="http://compositesw.com/devzone?ref=javaalmanac"><IMG alt="Click Here" height="600" width="120" border="0" src="/csw_oad_120x600_final.gif"></A></TD>
</TR>
</TABLE>
</BODY>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<META CONTENT="NO-CACHE" HTTP-EQUIV="PRAGMA">
</HEAD>
</HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -