C#使用自定义TabPage更改TabControl中的默认TabPage

Question

我创建了一个自定义TabControl和一个自定义TabPage，如下所示：

自定义TabControl代码：

public class MyCustomTabControl : TabControl
{
   //Some Custom Properties

   public MyCustomTabControl () : base()
    {
        base.Width = 200;
        base.Height = 100;

    }
}

自定义TabPage

public class MyCustomTabPage : TabPage
{
    //Some Custom Properties

    public MyCustomTabPage() : base()
    {                     
        this.BackColor = System.Drawing.Color.Transparent;
    }
}

如何做到这一点，以便在表单中添加自定义控件MyCustomTabControl时，添加名为MyCustomTabPage的自定义TabPage。目前，它从窗口添加TabPage。

Answer 1

您需要执行一些步骤，首先定义类MyCustomTabCollection并为MyCustomTabCollection类实现所有三个接口方法，然后将MyCustomTabControl上的MyCustomTabCollection实例声明为public属性。

实现接口

public class MyCustomTabPageCollection : IList, ICollection, IEnumerable
{
    // implement all three interfaces
}

实现所有方法

public object this[int index] { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }

public bool IsReadOnly => throw new NotImplementedException();

public bool IsFixedSize => throw new NotImplementedException();

public int Count => throw new NotImplementedException();

public object SyncRoot => throw new NotImplementedException();

public bool IsSynchronized => throw new NotImplementedException();

public int Add(object value)
{
    throw new NotImplementedException();
}

public void Clear()
{
    throw new NotImplementedException();
}

public bool Contains(object value)
{
    throw new NotImplementedException();
}

public void CopyTo(Array array, int index)
{
    throw new NotImplementedException();
}

public IEnumerator GetEnumerator()
{
    throw new NotImplementedException();
}

public int IndexOf(object value)
{
    throw new NotImplementedException();
}

public void Insert(int index, object value)
{
    throw new NotImplementedException();
}

public void Remove(object value)
{
    throw new NotImplementedException();
}

public void RemoveAt(int index)
{
    throw new NotImplementedException();
}

声明您的CustomTabPageCollection

public class MyCustomTab : TabControl
{
    public MyCustomTabPageCollection TabPages { get; set; }

    public MyCustomTab() : base()
    {
        base.Width = 200;
        base.Height = 100;

    }
}

如果有什么问题，请告诉我。