使用UserControl创建具有设计时支持的ToolBox组件

时间:2009-09-19 11:15:53

标签: .net winforms user-controls components design-time

我有一个用于Windows窗体的UserControl。如何将其转换为组件?我想要做的是,将它添加到VS工具箱,在设计时通过拖放将其添加到表单,并使用“属性”窗口更改其位置和Dock属性。我该怎么做呢?

我之前创建过类似的东西,但它是一个Component类。我可以将它添加到VS工具箱,使用拖放功能将其添加到表单中,并使用“属性”窗口更改其自定义属性,但由于它是在底部组件区域显示的组件,并且没有设计时支持。

1 个答案:

答案 0 :(得分:1)

UserControl Component。你没有必要做任何额外的事情来做到这一点。

如果在VS中创建新的UserControl,它将自动拥有您正在寻找的行为:从工具箱拖到表单上,通过“属性”面板更改其属性。

此代码创建在工具箱中显示自身的功能控件,并允许更改其属性。

public class TestUserControl : UserControl
{
    public TestUserControl() {
        InitializeComponent();
    }
    /// <summary> 
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.IContainer components = null;

    /// <summary> 
    /// Clean up any resources being used.
    /// </summary>
    /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
    protected override void Dispose(bool disposing) {
        if (disposing && (components != null)) {
            components.Dispose();
        }
        base.Dispose(disposing);
    }

    #region Component Designer generated code

    /// <summary> 
    /// Required method for Designer support - do not modify 
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent() {
        this.label1 = new System.Windows.Forms.Label();
        this.SuspendLayout();
        // 
        // label1
        // 
        this.label1.AutoEllipsis = true;
        this.label1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.label1.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
        this.label1.Location = new System.Drawing.Point(0, 0);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(231, 51);
        this.label1.TabIndex = 0;
        this.label1.Text = "This is a test user control";
        this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
        // 
        // TestUserControl
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.BackColor = System.Drawing.SystemColors.ActiveCaption;
        this.Controls.Add(this.label1);
        this.Name = "TestUserControl";
        this.Size = new System.Drawing.Size(231, 51);
        this.ResumeLayout(false);

    }

    #endregion

    private System.Windows.Forms.Label label1;
}

也许你可以将你的功能添加到这个类中,看看它是否有效。