I need to create an object in the flowLayoutPanel on the click of a button, identical to those that are already there. So that the same properties remain, but the name of the object changes (For example, block1 was copied and the new object was called block2). How can this be done in C# Windows Form?

CodePudding user response：

I think the best approach would be to implement IClonable in your control. Then, you can implement the Clone method, which will give you control over which properties you'd like to clone.

public partial class MyUserControl : UserControl, ICloneable
{
    public string Name { get; set; }

    public MyUserControl()
    {
        InitializeComponent();
    }

    private void MyUserControl_Load(object sender, EventArgs e)
    {
        this.lblName.Text = this.Name;
    }

    public object Clone()
    {
        MyUserControl? result = Activator.CreateInstance(this.GetType()) as MyUserControl;

        if (result != null)
        {
            foreach (var control in this.Controls)
            {
                // Clone child controls or properties as needed
            }
        }

        return result ?? this;
    }
}

Then, in your button click event, you can do:

private void btnCreate_Click(object sender, EventArgs e)
{
    // Get the "master" control to clone from
    var userControl = this.flowLayoutPanel1.Controls[0] as MyUserControl;

    if (userControl != null)
    {
        for (int x = 2; x < 10; x  )
        {
            MyUserControl? clone = userControl.Clone() as MyUserControl;

            if (clone != null)
            {
                clone.Name = $"Block {x}";
                        
                this.flowLayoutPanel1.Controls.Add(clone);
            }
        }
    }
}