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C用户控件作为自定义面板

user-controls winforms c#

Toto · 技术社区 · 15 年前

我创建自己的用户控件,其中只包含一个面板:

当我在设计器中拖动MyPanel对象,然后尝试在其上添加按钮时,该按钮实际上被添加到表单的控件中。

为了执行此操作,是否需要设置一个属性/属性,或者使用其他方法来执行此操作?

public class MyPanel : UserControl
{
    private Panel panelMain;

    public MyPanel()
    {
        InitializeComponent();
    }

    private void InitializeComponent()
    {
        this.panelMain = new System.Windows.Forms.Panel();
        this.SuspendLayout();
        // 
        // panelMain
        // 
        this.panelMain.BackColor = System.Drawing.SystemColors.ActiveCaption;
        this.panelMain.Dock = System.Windows.Forms.DockStyle.Fill;
        this.panelMain.Location = new System.Drawing.Point(0, 0);
        this.panelMain.Name = "panelMain";
        this.panelMain.Size = new System.Drawing.Size(150, 150);
        this.panelMain.TabIndex = 0;
        // 
        // myPanel
        // 
        this.Controls.Add(this.panelMain);
        this.Name = "MyPanel";
        this.ResumeLayout(false);
    }
}

2 回复 | 直到 9 年前

Attacktive 9 年前

看看这里

How to make a UserControl object acts as a control container design-time by using Visual C#

但如果您只需要扩展面板功能,最好直接从面板继承。

Toto 15 年前

更准确地说,我做了以下工作:

[Designer(typeof(myControlDesigner))] 
public class MyPanel : UserControl
{
    private TableLayoutPanel tableLayoutPanel1;
    private Panel panelMain;
    ...

    [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
    public Panel InnerPanel
    {
        get { return panelMain; }
        set { panelMain = value; }
    }

    [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
    public TableLayoutPanel InnerTableLayout
    {
        get { return tableLayoutPanel1; }
        set { tableLayoutPanel1 = value; }
    }
}

对于[设计器(typeof(mycontroldesigner))]的mycontroldesigner

class myControlDesigner : ParentControlDesigner
{

    public override void Initialize(IComponent component)
    {

        base.Initialize(component);

        MyPanel myPanel = component as MyPanel;
        this.EnableDesignMode(myPanel.InnerPanel, "InnerPanel");
        this.EnableDesignMode(myPanel.InnerTableLayout, "InnerTableLayout");

    }

}

(其他来源: Add Control to UserControl )