Can someone help me understand Property Condition usage a bit better?

Question

I see many examples of Property elements being using a syntax like the following:

    <AfterAddIisSettingAndFileContentsToSourceManifest Condition="'$(AfterAddIisSettingAndFileContentsToSourceManifest)'==''">
          $(AfterAddIisSettingAndFileContentsToSourceManifest);
          SetCustomACLs;
    </AfterAddIisSettingAndFileContentsToSourceManifest>

What I don't understand is this,  if the Condition just verified that the property is not set,

'$(AfterAddIisSettingAndFileContentsToSourceManifest)'==''

then why bother calling the property?

'$(AfterAddIisSettingAndFileContentsToSourceManifest);

Answer 1

Hi Hugh

Based on above code, it seems to define a propery with a condition to check if it is defined before. If it is not defined, set it as SetCusyomACLs.

I agree with you, the $(AfterAddIisSettingAndFileContentsToSourceManifest); seems useless in the property defination depends on above code only.

Regards,

Yi

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Yi Feng Li [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Hi,

I am writing to check the status of the issue on your side.  Would you mind letting us know the result of the suggestions? 

Yi

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Yi Feng Li [MSFT]
MSDN Community Support | Feedback to us

Answer 3

I think you've answered my question.   I was ultimately able to follow the breadcrumbs all the way from my initial .csproj file to my .wpp.targets file and now have at least a fuzzy idea of how it all connects.