根据条件设置节点值

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

答

ServerName ='true'" < xsl:apply-templates/ > 跨度> < xsl:value-of 选择 ="

ServerName='true'"> <xsl:apply-templates/> <xsl:value-of select="

RowCount" / < /xsl:何时 > < xsl:否则 > < xsl:apply-templates/ > 跨度> < xsl:value-of 选择 =" / > < /xsl:otherwise > < /xsl:choose > < /xsl:template > 但这会将值设置为Null，如< RowCount > < /RowCount &gt ; 谢谢 Ratz

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

您如何声明变量?对于您的真实情况，这应该可以正常工作:

How are you declaring your variables? This should work correctly for your true case:

<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="."/>

根据条件设置节点值

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