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Editorial Team
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Asked: 2026-05-11T17:46:57+00:00

I’ve added a pre-build action for an ASP.NET web control (server control) project, that

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I’ve added a pre-build action for an ASP.NET web control (server control) project, that runs jsmin.exe on a set of Javascript files. These output files are part of the source control tree and are embedded into the assembly.

The problem is when the pre-build runs, jsmin can’t write the file as it’s readonly. Is it possible to check the file out before hand? Or am I forced to set the file’s attributes in the command line.

Any improved solution to the problem is welcome.

Update
One small issue with Mehmet’s answer -you need to prepend the VS directory:

"$(DevEnvDir)tf" checkout /lock:none "$(ProjectDir)myfile"
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1 Answer

  1. Editorial Team

    If you’re using Team Foundation Server, you can use team foundation command line utility (tf.exe) to check out the file(s) during pre-build and then check them back in during post-build. If you’re using something else for source control, you can check if they have a command line tool like tf.exe.

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