本文介绍了根据条件设置节点值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
<?xml version="1.0" encoding="utf-8"?>
<Project >
<ServerName>2712</ServerName>
<Name1><ServerName>2712</ServerName>
<Tables>
<Table>
<Name>Table1</Name>
<TableType>Generated</TableType>
<DataVersion version="1" type="PopulationDetails">
<PopulationType>RowCount</PopulationType>
<RowCount>2712</RowCount>
<ProportionTableExists>False</ProportionTableExists>
<Proportion>0</Proportion>
<TimeToPopulate>0</TimeToPopulate>
</Table>
<Table>
<Name>Table2</Name>
<TableType>Generated</TableType>
<DataVersion version="1" type="PopulationDetails">
<PopulationType>RowCount</PopulationType>
<RowCount>2712</RowCount>
<ProportionTableExists>False</ProportionTableExists>
<Proportion>0</Proportion>
<TimeToPopulate>0</TimeToPopulate>
</Table>
<Table>
<Name>Table3</Name>
<TableType>Generated</TableType>
<DataVersion version="1" type="PopulationDetails">
<PopulationType>RowCount</PopulationType>
<RowCount>2712</RowCount>
<ProportionTableExists>False</ProportionTableExists>
<Proportion>0</Proportion>
<TimeToPopulate>0</TimeToPopulate>
</Table>
</Tables>
</Name1>
<Name2>
<Name1><ServerName>2712</ServerName></Name1></Name2>
</Project>
Need help in writing XSLT
I want to change all the RowCount Values to 1000. based on the parameter if it is true else it should not change the value.
I tried writing this
<xsl:template match="Tables/Table/RowCount/text()">
<xsl:choose>
<xsl:when test="$ServerName='true'">
<xsl:apply-templates/>
<xsl:value-of select="$RowCount" />
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates/>
<xsl:value-of select="text()" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
But this is setting the value as Null as in <RowCount></RowCount>
Thanks
Ratz推荐答案
<xsl:variable name="ServerName">true</xsl:variable>
<xsl:variable name="RowCount">1000</xsl:variable>
可能是错误的情况，为您提供了null，在这种情况下，请尝试以下操作:
It may be the false case that''s giving you null, in which case, try this:
<xsl:value-of select="."/>
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