|
Does anyone know how to check for the existence
of a particular element in an XML file? I need to add <appSettings> to
the machine.config file but if I assume that the <appSettings> node does
not exist then I end up with two. The only thing I see in the WiX schema is
XmlFile which creates or updates elements. I need to query. __________ Doug Watts From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of OK, either my questions are getting easier
or I’m starting to get the hang of this. I figured out that I need
to escape the brackets and now it works fine. My follow-up question is how do I check an
XML file to see if an element already exists? If the appSettings element is already
there this I don’t need to create it. However, the XmlFile Wix
element is used from creating or updating elements…not for querying them.
__________ Doug Watts From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of I am trying to use the XmlFile element to modify the
MACHINE.CONFIG file. I need to add application settings for my app.
I need to add settings such that the config file ends up as follows: <appSettings> <add key="MyKey1" value="key
1 value" /> <add key="MyKey2"
value="key 2 value" /> </appSettings> First I create an “add” element. Next, I
want to set the element’s attributes as shown above. However, when
I try to set the second “add” element I end up changing the first
and adding an empty second “add” element. I tried specifying
the first element (ElementPath='//configuration/appSettings/add[1]') with no
luck; I tried the last element (ElementPath='//configuration/appSettings/add[last()]') with no
luck. I have tried the following: <Component
Id="MachineConfigComponent"
Guid="00000000-0000-0000-0000-000000000000" > <XmlFile
Id='XmlSettings1'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='appSettings' ElementPath='//configuration'
Sequence='1' /> <XmlFile
Id='XmlSettings2'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='add' ElementPath='//configuration/appSettings'
Sequence='2' /> <XmlFile
Id='XmlSettings3'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='key' Value='MyKey1'
ElementPath='//configuration/appSettings/add'
Sequence='3' /> <XmlFile
Id='XmlSettings4'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='value' Value='key 1 value'
ElementPath='//configuration/appSettings/add'
Sequence='4' /> <XmlFile
Id='XmlSettings5'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='add' ElementPath='//configuration/appSettings'
Sequence='5' /> <XmlFile
Id='XmlSettings6'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='key' Value='MyKey2'
ElementPath='//configuration/appSettings/add[1]'
Sequence='6' /> <XmlFile
Id='XmlSettings7'
File='[FRAMEWORKINSTALLPATH]v1.1.4322\CONFIG\Machine.Config'
Action='' Name='value' Value='key 2 value'
ElementPath='//configuration/appSettings/add[1]' Sequence='7' /> </Component> Does anyone know how to add elements and set their
attributes when the element names are the same? __________ Doug Watts |
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