How to add panel into another panel

Question

I want to add one of panel1,2,... into panel0 when I click on button1 .

It's my code

private void button3_Click(object sender, EventArgs e)
        {
            int i = 0;
            int j = 0;


            Panel[] pnl = new Panel[3];

            while ( i<2)
            {
                pnl[i].Parent = panel0;                  // erorr

                pnl[i].BackColor = Color.PeachPuff;

                pnl[i].Size = new Size(50, 10);
                pnl[i].Location = new Point(j+5,10);
                panel0.Controls.Add(pnl[i]);
                pnl[i].BringToFront();

                i++;
                j = j + 13;
            }
         }

Have a suggestion ?

well, your panel hasn't initialized yet, you only call the array constructor, but you should still use `pnl[i] = new Panel()` before you can access its members. For the rest, you should choose between having it as parent, or assigning it to the controls of `panel0`, as both do pretty much the same — Icepickle, Jan 02 '19 at 12:06

score 0 · Accepted Answer · answered Jan 02 '19 at 12:20

0

change Panel[] pnl = new Panel[3] to:

var pnl  = new List<Panel>{existingPanel1, existingPanel2, existingPanel3};

answered Jan 02 '19 at 12:20

CodeMan

671
6
13

existingPanel1,2,3 are in your form. – CodeMan Jan 02 '19 at 12:21
thank you , How can I do this if the number of panels is too high? – jsmlz Jan 02 '19 at 12:30
foreach (Control control in Controls) if (control is Panel) // and other conditions to add to pnl list – CodeMan Jan 02 '19 at 12:37
Thanks my Friend – jsmlz Jan 02 '19 at 12:40

How to add panel into another panel

1 Answers1