Loop through controls within different control user in c#

Question

Ok so here is my problem:I have a form with 10 user control (they are all the same) and they each include 1 textbox, 1 combobox and 5 checkbox.

By default everything is disabled, but with another checkbox the user will enabled either the textbox or the combobox or all 5 checkboxes.

I could easly do it by doing something like

    ucPlayer1.name.Enabled = true;
    ucPlayer2.name.Enabled = true;

etc .. but it seems unnecessary

Before I wasn't using any usercontrol so I could do something like:

    foreach (Control c in this.Controls)
    {
        if (c is TextBox && c != null)
           ((TextBox)c).Enabled = true;
    }

but now, i'm stuck, I can't get a working loop, i tried something like:

    foreach(UserControl uc in Controls)

But it doesn't work.

Any ideas ??

Answer 1

Try something like this. If it is usercontrol then call the same method recursively.

private void DoItRecursive(Control parent)
{
    foreach (Control c in parent.Controls)
    {
        if(c is UserControl)
            DoItRecursive(c);
        else if (c is TextBox)
            c.Enabled = true;
    }
}

Then use it like this

DoItRecursive(this);

Where this refers to Form typically.

Note: I've removed c != null checking from your code because is keyword takes care of that. You don't need to, and casting c to TextBox is redundant.