# UpdateBuildProperty

> Adds and removes values from a build property in all build configurations for the specified target(s).

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.iOS.Xcode](/engine/6000.5/script-reference/unityeditor/ios/xcode.md)
* **Assembly:** UnityEditor.iOS.Extensions.Xcode

## UpdateBuildProperty(string, string, IEnumerable\<string>, IEnumerable\<string>)

Adds and removes values from a build property in all build configurations for the specified target(s).

```csharp
public void UpdateBuildProperty(string targetGuid, string name, IEnumerable<string> addValues, IEnumerable<string> removeValues)
```

### Parameters

**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The target GUID as returned by NativeTargetByName.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The name of the build property.**** (\[IEnumerable\<string>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)): The values to add to the build property.**** (\[IEnumerable\<string>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)): The values to remove from the build property.

### Examples

```csharp
using UnityEditor;
using System.IO;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class Sample_UpdateBuildProperty  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {

        // Stop processing if build target is not iOS
        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get the target GUID
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Set up which property you will want to update, what values you want to add and what values you want to remove
        string propertyName = "ON_DEMAND_RESOURCES_INITIAL_INSTALL_TAGS";
        string[] newTags = new string[] { "newTag1", "newTag2", "newTag3"};
        string[] oldTags = new string[] { "oldTag1", "oldTag2", "oldTag3"};

        // Update the property using the UpdateBuildPropery function
        pbxProject.UpdateBuildProperty(mainTargetGuid, propertyName, newTags, oldTags);

        // Apply changes to the pbxproj file
        pbxProject.WriteToFile(projectPath);
    }
}
```

## UpdateBuildProperty(IEnumerable\<string>, string, IEnumerable\<string>, IEnumerable\<string>)

Adds and removes values from a build property in all build configurations for the specified target(s).

```csharp
public void UpdateBuildProperty(IEnumerable<string> targetGuids, string name, IEnumerable<string> addValues, IEnumerable<string> removeValues)
```

### Parameters

**** (\[IEnumerable\<string>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)): An array of target GUIDs.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): The name of the build property.**** (\[IEnumerable\<string>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)): The values to add to the build property.**** (\[IEnumerable\<string>]\(https\://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)): The values to remove from the build property.

### Examples

```csharp
using UnityEditor;
using System.IO;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class Sample_UpdateBuildProperty  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {

        // Stop processing if build target is not iOS
        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get the target GUID
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Set up which property you will want to update, what values you want to add and what values you want to remove
        string propertyName = "ON_DEMAND_RESOURCES_INITIAL_INSTALL_TAGS";
        string[] newTags = new string[] { "newTag1", "newTag2", "newTag3"};
        string[] oldTags = new string[] { "oldTag1", "oldTag2", "oldTag3"};

        // Update the property using the UpdateBuildPropery function
        pbxProject.UpdateBuildProperty(mainTargetGuid, propertyName, newTags, oldTags);

        // Apply changes to the pbxproj file
        pbxProject.WriteToFile(projectPath);
    }
}
```