Question

所以我仍在学习，因为我去了很多，但我似乎无法弄清楚如何在动态创建的用户控件中访问方法。

我设法让这个工作：

Control picture = new UserControl1();
picture.Visible = true;
picture.Name = "PIC1";
picture.Location = new Point(0, 0);
picture.Show();
flowLayoutPanel1.Controls.Add(picture);

(UserControl1)picture).SetMSG("Test");

但是我希望通过它的名称来解决控件的每个实例：

Control picture = new UserControl1();
picture.Visible = true;
picture.Name = "PIC1";
picture.Location = new Point(0, 0);
picture.Show();
flowLayoutPanel1.Controls.Add(picture);

(UserControl1)PIC1).SetMSG("Test");

我想我可能只是误解了整个概念？

Answer 1

我想我可能只是误解了整个概念？

是的，你是。你不能只使用那样的控件名称。你可以做：

var PIC1 = flowLayoutPanel1.Controls.Find("PIC1",false);

但您已经拥有对控件的引用（picture），因此我不需要获取不同的引用。< / p>

Answer 2

您可以在视图中保留对动态创建的控件的引用：

class MyView
{
    public void CreateControl(string name)
    {
        Control picture = new UserControl1();
        picture.Visible = true;
        picture.Name = name;
        picture.Location = new Point(0, 0);
        picture.Show();
        flowLayoutPanel1.Controls.Add(picture);

        this.controls.Add(name, picture);
    }

    public void SetMsg(string name, msg)
    {
        ((UserControl1)this.controls[name]).SetMSG(msg);
    }

    private Dictionary<string, Control> controls = new Dictionary<string, Control>();
}

在动态创建的用户控件中访问方法？

2 个答案: