c# - 根据运行时的新自定义属性初始化自定义 C# 控件

Question

我制作了一个新的自定义按钮和一个新的 bool 属性。当我在 Visual Studio 中将新的自定义按钮添加到我的表单时，设计功能效果很好。

我想根据该 bool 属性加载两个设计，但父表单已经在 formdesigner.cs 中包含设计代码并且按钮看起来相同。

我应该覆盖什么方法来访问按钮的“加载”？

这是我的按钮cs

     namespace Regio.UI
      {
public class MetroButton : System.Windows.Forms.Button
{
    public bool Highlight { get; set; }
    public MetroButton()
    {
        if (Highlight == true)
        {


            base.BackColor = Color.White;
            base.ForeColor = Color.Black;
            FlatStyle = FlatStyle.Flat;
            FlatAppearance.BorderColor = Color.Gray;
            FlatAppearance.BorderSize = 2;
            FlatAppearance.MouseOverBackColor = Color.WhiteSmoke;
        }
        else {
            base.BackColor = Color.White;
            base.ForeColor = Color.Black;
            base.FlatStyle = FlatStyle.Flat;
            base.FlatAppearance.BorderColor = Color.FromArgb(0, 174, 219);
            base.FlatAppearance.BorderSize = 3;
            base.FlatAppearance.MouseOverBackColor = Color.WhiteSmoke;

        }
    }

}
 }

这是 Form1.Designer.cs:

 this.metroButton1 = new Regio.UI.MetroButton();
        this.metroButton2 = new Regio.UI.MetroButton();
        this.SuspendLayout();
        // 
        // metroButton1
        // 
        this.metroButton1.BackColor = System.Drawing.Color.Black;
        this.metroButton1.FlatAppearance.BorderColor = System.Drawing.Color.Gray;
        this.metroButton1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
        this.metroButton1.Font = new System.Drawing.Font("Arial", 10F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.metroButton1.ForeColor = System.Drawing.Color.White;
        this.metroButton1.Highlight = false;
        this.metroButton1.Location = new System.Drawing.Point(212, 172);
        this.metroButton1.Margin = new System.Windows.Forms.Padding(5, 0, 5, 0);
        this.metroButton1.MinimumSize = new System.Drawing.Size(100, 30);
        this.metroButton1.Name = "metroButton1";
        this.metroButton1.Padding = new System.Windows.Forms.Padding(3);
        this.metroButton1.Size = new System.Drawing.Size(171, 111);
        this.metroButton1.TabIndex = 0;
        this.metroButton1.Text = "metroButton1";
        this.metroButton1.UseVisualStyleBackColor = false;

提前致谢

Answer 1

是的，当涉及到自定义控件时，Visual Studio 可能会令人讨厌。但是你的代码确实有一个缺陷。您已经在构造函数中放入当 bool 值为真时，它以一种方式设计，而当它为假时，它以另一种方式设计。但是，我想您会希望在更改 bool 值时重置设计。以下是我将如何更改它。

public class MetroButton : System.Windows.Forms.Button
{
    private bool highlight;
    public bool Highlight
    { 
        get
        {
            return highlight;
        }
        set
        {
            highlight = value;
            if (highlight)//This is the same as "if(highlight == true)" but the last part is redundant in most programming languages.
            {

                FlatAppearance.BorderColor = Color.Gray;
                FlatAppearance.BorderSize = 2;
                FlatAppearance.MouseOverBackColor = Color.WhiteSmoke;
            }
            else 
            {
                base.FlatAppearance.BorderColor = Color.FromArgb(0, 174, 219);
                base.FlatAppearance.BorderSize = 3;
                base.FlatAppearance.MouseOverBackColor = Color.WhiteSmoke;
            }
        }
    }
    public MetroButton()
    {
        base.BackColor = Color.White;
        base.ForeColor = Color.Black;
        FlatStyle = FlatStyle.Flat;
        Highlight = true;//Just setting a default.
    }

}

现在，只要更改“Highlight”的值，就会运行 if 语句中的代码。