可访问性不一致:与"EditTag.tag"字段相比，"TagHandler"字段类型的访问性较差 [英] Inconsistent accessibility: field type 'TagHandler' is less accessible than field 'EditTag.tag'

问题描述

我想创建一个表单，可以在其中编辑类 TagHandler 的字段.因此，我决定将参数传递给表单的构造函数 TagHandler标签，其中 tag -是我要编辑的标签.在我的表单中，我有一个 tag 字段，我可以对其进行编辑，然后获取其数据.例如，在我的主窗体中，我有一个带有 MouseDoubleClick 方法

I want to create a form where I can edit a field of my class TagHandler. So I decided to pass as a paramter to form's constructor TagHandler tag where tag - is a tag I want to edit. In my form I've got a field tag which I edit and then get its data. For example in my main form I've got a listbox with MouseDoubleClick method

void listBox1_MouseDoubleClick(object sender, MouseEventArgs e)
{
    int index = listBox1.SelectedIndex;
    TagHandler tg = listData[index];

    EditTag edit = new EditTag(tg);
    if (edit.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    {
        listData[index] = edit.Tag as TagHandler;
    }
}

其中 EditTag 是表单

public partial class EditTag : Form
{
    public TagHandler tag { set; get; }
    public EditTag(TagHandler tag)
    {
        InitializeComponent();
        this.CenterToParent();
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
        this.MaximizeBox = false;

        this.tag = tag;
        this.label2.Text = tag.Tag;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        tag.Data = richTextBox1.Text;
        this.DialogResult = System.Windows.Forms.DialogResult.OK;
    }
}

但是我有这样的错误

可访问性不一致:属性类型'XmlMissionEditor.TagHandler'的访问权限比属性'XmlMissionEditor.EditTag.tag'

可访问性不一致:参数类型'XmlMissionEditor.TagHandler'的访问权限比方法'XmlMissionEditor.EditTag.EditTag(XmlMissionEditor.TagHandler)'

出什么问题了?我什至将 tag 字段设置为 public ，但它仍然显示相同的错误.我的课程 TagHandler 看起来像这样

What's the problem? I even set tag field as public but it still shows the same error. My class TagHandler looks like this

[Serializable]
class TagHandler
{
    private string data;
    private string tag;
    private Color color;
    private List<AttributeHandler> attributes;

    public TagHandler(string tag, bool close)
    {
        attributes = new List<AttributeHandler>();
        if (close)
        {
            string s = "/" + tag;
            this.tag = s;
        }
        else
        {
            this.tag = tag;
        }
    }

    public string Tag
    {
        get { return tag; }
        set { tag = value; }
    }

    public string Data
    {
        get { return data; }
        set { data = value; }
    }

    ...other methods

}

推荐答案

这些是问题所在:

public TagHandler tag { set; get; }
public EditTag(TagHandler tag)

后者是公共类中的公共方法.因此，它的所有参数及其返回类型也应该是公共的-否则，您说的是可以调用此函数，但不知道调用它的类型"(或者返回的是什么，如果返回的话)类型不是公共的.同样，属性的类型也必须是公共的.

The latter is a public method in a public class. Therefore all its parameters and its return type should be public too - otherwise you're saying "You can call this, but you can't know about the type you're calling it with" (or what it's returning, if it's the return type that's not public. Likewise the type of the property has to be public.

或者将构造函数和属性设置为内部，或者将 TagHandler 类型设置为公共.

Either make the constructor and property internal or make the TagHandler type public.

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