繁体   English   中英

无法将类型'UnityEngine.ScriptableObject'隐式转换为'T'

[英]Cannot implicitly convert type `UnityEngine.ScriptableObject' to `T'

public class UVBaseTool : ScriptableObject, IPropertiesChanged
{
    private BaseToolProperties properties_;
    private ScriptableObject propertiesNoValidate_;

    // Some code ...

    protected void SetProperties(System.Type propertiesType, System.Type properties1Type)
    {
        properties_ = propertiesType == null ? null : CreateInstance(propertiesType) as BaseToolProperties;
        if (properties_ != null)
        {
            properties_.tool = (this);
        }

        propertiesNoValidate_ = properties1Type == null ? null : CreateInstance(properties1Type);
    }

    public T Properties<T>()
    {
        return properties_;
    }

    public T PropertiesNoValidate<T>()
    {
        return propertiesNoValidate_;
    }
}

任何人都可以帮我解决这个问题,因为我无法解决以下错误:

  1. 资产/火箭/ Archi /脚本/编辑器/UVEditor/UVBaseTool.cs(219,14):错误CS0029:无法将Rocket.Archi.BaseToolProperties' to类型隐式转换Rocket.Archi.BaseToolProperties' to T'
  2. 资产/火箭/存档/脚本/编辑器/UVEditor/UVBaseTool.cs(224,14):错误CS0029:无法将类型UnityEngine.ScriptableObject' to隐式转换UnityEngine.ScriptableObject' to T'

我尝试通过CS0029的在线上下文,但仍然似乎无法通过IConvertable进行转换。 请让我知道是否有解决方案。

这就是我打电话给的方式

[SerializeField]
private BaseToolProperties properties_;
[SerializeField]
private ScriptableObject propertiesNoValidate_;

public virtual void Start()
{
      EditorUtil.HideGlobalGizmo();
      ArchiEx.selectedElements.ClearVertexBoxes();
      ArchiEx.currentCamera = (Camera) null;
      GizmoHandler.Destroy();
      if (properties_ != null)
        EditorUtil.LoadObject(properties_, null);
      if (propertiesNoValidate_ != null)
        EditorUtil.LoadObject(propertiesNoValidate_, null);
      Ruler.Add(this, RulerType.Local);
      ArchiSettings.GatherArchi();
}

这是baseTool;

using System;
using UnityEngine;

namespace Rocket.Archi
{
  [Serializable]
  public class BaseToolProperties : ScriptableObject
  {
    [NonSerialized]
    public IPropertiesChanged tool;

    public virtual void OnValidate()
    {
      if (tool == null)
        return;
      tool.OnPropertiesChanged();
    }
  }
}

所附的图像显示了我如何在其他类中调用Properties,并相信我在该部分中没有错误,我已经一遍又一遍地检查了所有上下文,但是这个通用函数使我丧命。

如果我这样写,错误消失了,但是现在我又遇到了另一个错误,该错误是针对IConvertable的。 每当我尝试在场景视图中制作对象时,都会出现此重复错误。 见下文;

public T Properties<T>()
    {
        return (T)Convert.ChangeType(properties_, typeof(T));
    }

    public T PropertiesNoValidate<T>()
    {
        return (T)Convert.ChangeType(propertiesNoValidate_, typeof(T));
    }

InvalidCastException:对象必须实现IConvertible。 System.Convert.ChangeType(System.Object值,System.Type conversionType,System.IFormatProvider提供程序)(在0处)System.Convert.ChangeType(System.Object值,System.Type conversionType)(在0处)RocketMod.Archi .BaseTool.Properties [T]()(在Assets / Rocket-建模工具/Archi/Scripts/Editor/BaseTool.cs:224处)RocketMod.Archi.PropertiesGUI.HasContents()(在Assets / Rocket-建模工具/ Archi /脚本/编辑器/属性GUI.cs:54)RocketMod.Archi.PropertiesGUI.OnGUI()(在Assets / Rocket-建模工具/Archi/Scripts/Editor/PropertiesGUI.cs:17)RocketMod.Archi.ToolSelectionGUI.OnGUI()(在Assets / Rocket-建模工具/Archi/Scripts/Editor/ToolSelectionGUI.cs:164处)RocketMod.Archi.ArchiEditor.OnInspectorGUI()(在Assets / Rocket-建模工具/Archi/Scripts/Editor/ArchiEditor.cs:299处) UnityEditor.InspectorWindow.DrawEditor(UnityEditor.Editor []编辑器,System.Int32 editorIndex,System.Boolean rebuildOptimizedGUIBlock,System.Boolean&showImportedObjectBarNext,UnityEngine.Rect 和importedObjectBarRect)(在C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1253)UnityEngine.GUIUtility:ProcessEvent(Int32,IntPtr)

如果要解决这个问题,我写如下

public T Properties<T>() where T : IConvertible
    {
        return (T)Convert.ChangeType(properties_, typeof(T));
    }

    public T PropertiesNoValidate<T>() where T : IConvertible
    {
        return (T)Convert.ChangeType(propertiesNoValidate_, typeof(T));
    }

任何帮助都会被认可的人!

您在返回特定类型属性的方法中使用通用类型<T>

用以下内容替换方法的签名:

//     v----------------v--------------The type of properties_
public BaseToolProperties Properties()
{   //                              ^----------------the <T> was removed
    return properties_;
}

//     v--------------v----------------The type of propertiesNoValidate_
public ScriptableObject PropertiesNoValidate()
{   //                                      ^--------the <T> was removed
    return propertiesNoValidate_;
}

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM