c# 自定义含有标题的容器控件(标题背景为渐变色)

1、控件效果图

此效果图中的标题颜色、字号及字体可以在控件属性中设置。标题背景的渐变色及布局内容的背景色也可以在属性中设置。

2、实现的代码（用户控件）

 public partial class UcPanel : UserControl
     {
         public UcPanel()
         {
             InitializeComponent();
         }
         #region 外观

         [Category("自定义-外观"), DefaultValue("标签"), Description("Caption控件部分的字样")]
         public string CaptionText { get { return label.Text; } set { label.Text = value; } }

         [Category("自定义-外观"), Description("Caption控件部分的字体")]
         public Font CaptionFont { get { return label.Font; } set { label.Font = value; } }

         private Color LabelForeColor = Color.White;
         [Category("自定义-外观"), Description("Caption控件部分的字体颜色")]
         public Color CaptionColor
         {
             get { return LabelForeColor; }
             set
             {
                 LabelForeColor = value;
                 label.ForeColor = LabelForeColor;
         } }

         private Color PanelBackColor1 = Color.Blue;
         private Color PanelBackColor2 = Color.White;
         [Category("自定义-外观"), Description("控件Panel部分的开始颜色")]
         public Color PanelColorUp
         {
             get { return PanelBackColor1; }
             set
             {
                 PanelBackColor1 = value;
             }
         }

         [Category("自定义-外观"), Description("控件Panel部分的结束颜色")]
         public Color PanelColorDw
         {
             get { return PanelBackColor2; }
             set
             {
                 PanelBackColor2 = value;

             }
         }

         private Color PanelBackColor = DefaultBackColor;
         [Category("自定义-外观"), Description("Panel2控件部分的背景颜色")]
         public Color Panel2Color
         {
             get { return PanelBackColor; }
             set
             {
                 PanelBackColor = value;
                 panel2.BackColor = PanelBackColor;
             }
         }

         #endregion 外观

         private void panel1_Paint(object sender, PaintEventArgs e)
         {
             Graphics g = e.Graphics;
             Color FColor =PanelBackColor1;
             Color TColor = PanelBackColor2;
             Brush b = new LinearGradientBrush(panel1.ClientRectangle, FColor, TColor, LinearGradientMode.Vertical);
             g.FillRectangle(b, panel1.ClientRectangle);
         }

     }