如何控制动态添加的usercontrol？

Question

I have a code like this:

MyUserControl[] myControl = new MyUserControl[10];

when Form load:

for( int i = 0; i < 10; i++ )
{
    myControl[i] = new MyUserControl();
    myControl[i].label1.Text = "Title";

    this.Controls.Add ( myControl[i] );
}

now it is show normally.

after then press button like below:

private void Button1_Click(object sender, EventArgs e)
{
    myControl[0].label1.Text = "Other Title";
}

When i see the debug mode,value was added normally, but lable1 text not show "Other Title".

So, I try to below method, but not work anything.

myControl[0].label1.Update();
myControl[0].label1.Invalidate();
myControl[0].label1.Refresh();

Please, kindly advise.

Answer 1

I don't understand your concept Hope this example work for you

private void Button1_Click(object sender, EventArgs e)
{
    //myControl[0].label1.Text = "Other Title";

    MyUserControl ctrl = null;
    foreach (var c in this.Controls)
    {
        if (c.GetType().Name == "MyUserControl")
        {
            var myctrl = (MyUserControl)c;
            if (myctrl.Text == "Title")
            {
                ctrl = myctrl;
                break;
            }
        }
    }
    if (ctrl != null)
    {
        ctrl.Text = "Other Title";
    }
}

This is a very simple example that code will work and you have to enhance as you like

Answer 2

Thank you for everyone. I got a root cause in this matter.

myControl[0].label1.Text = "Other Title";
myControl[0].BringToFront(); // <- Solved problem with this code.

I don't know why z-order was twisted.