是否有内置的 TypeConverter 或 UITypeEditor 来编辑字符串列表

发布于 2024-08-19 23:29:31 字数 160 浏览 12 评论 0原文

我想知道.Net-3.5是否带有内置的 List 或 string[] TypeConverter 或 UITypeEditor 这样我就可以从属性网格编辑此类属性。

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喵星人汪星人 2024-08-26 23:29:31

对于 `List` 的 UITypeEditor

对于 string[]，您不需要执行任何特殊操作，属性网格将使用包含多行文本框的标准对话框来编辑字符串数组，每一行都是数组中的一个元素。

要在属性网格中编辑 List，您可以使用以下任一选项：

StringCollectionEditor，它显示一个包含多行文本框的对话框，用于编辑
元素自定义 CollectionEditor 以编辑集合编辑器对话框中的项目

选项 1 - StringCollectionEditor

private List<string> myList = new List<string>();
[Editor("System.Windows.Forms.Design.StringCollectionEditor, " +
    "System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
    typeof(UITypeEditor))]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public List<string> MyList {
    get {
        return myList;
    }
    set {
        myList = value;
    }
}

选项 2 - 自定义 CollectionEditor

首先创建自定义编辑器：

//You need to add reference to System.Design
public class MyStringCollectionEditor : CollectionEditor {
    public MyStringCollectionEditor() : base(type: typeof(List<String>)) { }
    protected override object CreateInstance(Type itemType) {
        return string.Empty;
    }
}

然后使用编辑器属性装饰该属性：

private List<string> myList = new List<string>();
[Editor(typeof(MyStringCollectionEditor), typeof(UITypeEditor))]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public List<string> MyList {
    get {
        return myList;
    }
    set {
        myList = value;
    }
}

UITypeEditor for `List<String>`

For string[] you don't need to do anything special and the property grid will use a standard dialog containing a multi-line text box to edit string array and each line will be an element in the array.

To edit List<string> in property grid, you can use either of the following options:

StringCollectionEditor which shows a dialog containing a multi-line text box to edit elements
Create a custom CollectionEditor to edit items in a collection editor dialog

Option 1 - StringCollectionEditor

private List<string> myList = new List<string>();
[Editor("System.Windows.Forms.Design.StringCollectionEditor, " +
    "System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
    typeof(UITypeEditor))]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public List<string> MyList {
    get {
        return myList;
    }
    set {
        myList = value;
    }
}

Option 2 - Custom CollectionEditor

First create the custom editor:

//You need to add reference to System.Design
public class MyStringCollectionEditor : CollectionEditor {
    public MyStringCollectionEditor() : base(type: typeof(List<String>)) { }
    protected override object CreateInstance(Type itemType) {
        return string.Empty;
    }
}

Then decorate the property with the editor attribute:

private List<string> myList = new List<string>();
[Editor(typeof(MyStringCollectionEditor), typeof(UITypeEditor))]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public List<string> MyList {
    get {
        return myList;
    }
    set {
        myList = value;
    }
}