RULES Attribute | rules Property 表格的rules标签详解

Sets or retrieves which dividing lines (inner borders) are displayed.

Syntax

HTML
<TABLE RULES = sRule... >

Scripting
TABLE.rules [ = sRule ]

Possible Values

sRule
String that specifies or receives one of the following values.

all
Borders are displayed on all rows and columns.

cols
Borders are displayed between all table columns.

groups
Horizontal borders are displayed between all tHead, tBody, and tFoot objects; vertical borders are displayed between all colGroup objects.

none
All interior table borders are removed.

rows
Horizontal borders are displayed between all table rows.

The property is read/write. The property has no default value.

Expressions can be used in place of the preceding value(s), as of Microsoft® Internet Explorer 5. For more information, see About Dynamic Properties.

Remarks

The value none turns off only the interior borders. To turn off the table borders, set the rules property to '', or omit the RULES attribute from the table object.

Examples

This example initially sets the RULES attribute on the table, and then uses the rules property to dynamically change the table borders.

HideExample

<TABLE ID="oID_1" RULES="cols">
<THEAD>
<TR>
<TD>EST</TD><TD>1am</TD><TD>8pm</TD>
</TR>
</THEAD>
<TR>
<TD>CST</TD><TD>2am</TD><TD>9pm</TD>
</TR>
<TR>
<TD>MST</TD><TD>3am</TD><TD>10pm</TD>
</TR>
<TFOOT>
<TR>
<TD>PST</TD><TD>4am</TD><TD>11pm</TD>
</TR>
</TFOOT>
</TABLE>
<P>
<BUTTON onclick="oID_1.rules=''">No borders</BUTTON>
<BUTTON onclick="oID_1.rules='none'">Exterior border</BUTTON>
<BUTTON onclick="oID_1.rules='all'">All borders</BUTTON><BR>
<BUTTON onclick="oID_1.rules='cols'">Column borders</BUTTON>
<BUTTON onclick="oID_1.rules='groups'">Groups borders</BUTTON>
<BUTTON onclick="oID_1.rules='rows'">Table row borders</BUTTON>
</P>