Merge pull request #13467 from JanKrivanek/patch-5

Document MSBuild support for 'IfDifferent' for 'CopyToOutputDirectory'

Author: prmerger-automator[bot]

docs/msbuild/common-msbuild-project-items.md

@@ -96,7 +96,7 @@ Represents the source files for the compiler.
 | AutoGen | Optional boolean. Indicates whether the file was generated for the project by the Visual Studio integrated development environment (IDE). |
 | Link | Optional string. The notational path to be displayed when the file is physically located outside the influence of the project file. |
 | Visible | Optional boolean. Indicates whether to display the file in **Solution Explorer** in Visual Studio. |
-| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest |
+| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest<br />4. IfDifferent |
 
 ## EmbeddedResource
 
@@ -112,7 +112,7 @@ Represents resources to be embedded in the generated assembly.
 | CustomToolNamespace | Optional string. The namespace in which any file generator that runs on this item should create code. |
 | Link | Optional string. The notational path is displayed if the file is physically located outside the influence of the project. |
 | Visible | Optional boolean. Indicates whether to display the file in **Solution Explorer** in Visual Studio. |
-| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest |
+| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest<br />4. IfDifferent |
 | LogicalName | Required string. The logical name of the embedded resource. |
 
 ## Content
@@ -129,7 +129,7 @@ Represents files that aren't compiled into the project, but may be embedded or p
 | PublishState | Required string. The publish state of the content, either:<br /><br /> - Default<br />-   Included<br />-  Excluded<br />- DataFile<br />- Prerequisite |
 | IsAssembly | Optional boolean. Specifies whether the file is an assembly. |
 | Visible | Optional boolean. Indicates whether to display the file in **Solution Explorer** in Visual Studio. |
-| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest |
+| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest<br />4. IfDifferent |
 | TargetPath | Optional string. The output path (relative to the configuration- and/or platform-specific output directory) of an item, including the filename. This respects the `Link` metadata, if provided. If TargetPath isn't provided, it's computed during the build process. See [AssignTargetPath](assigntargetpath-task.md). |
 
 ## None
@@ -144,7 +144,7 @@ Represents files that should have no role in the build process.
 | CustomToolNamespace | Optional string. The namespace in which any file generator that runs on this item should create code. |
 | Link | Optional string. The notational path to be displayed if the file is physically located outside the influence of the project. |
 | Visible | Optional boolean. Indicates whether to display the file in **Solution Explorer** in Visual Studio. |
-| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest |
+| CopyToOutputDirectory | Optional string. Determines whether to copy the file to the output directory. Values are:<br /><br /> 1. Never<br />2. Always<br />3. PreserveNewest<br />4. IfDifferent |
 
 ## AssemblyMetadata