﻿namespace Sunny.UI.Demo
{
    public partial class FFlowLayoutPanel : UIPage
    {
        public FFlowLayoutPanel()
        {
            InitializeComponent();
        }

        public override void Init()
        {
            base.Init();
            uiFlowLayoutPanel1.Clear();
            index = 0;

            for (int i = 0; i < 10; i++)
            {
                uiButton1.PerformClick();
            }
        }

        private int index;
        UIButton btn;
        private void uiButton1_Click(object sender, System.EventArgs e)
        {
            btn = new UIButton();
            btn.SetDPIScale();
            btn.Text = "Button" + index++.ToString("D2");
            //btn.Click += Btn_Click;

            //建议用封装的方法Add
            uiFlowLayoutPanel1.Add(btn);
            //也可以用原生方法Controls.Add（不推荐）
            //uiFlowLayoutPanel1.Controls.Add(btn);    

            uiButton3.Enabled = true;
        }

        private void Btn_Click(object sender, System.EventArgs e)
        {
            var button = (UIButton)sender;
            ShowInfoTip(button.Text);
        }

        private void uiButton2_Click(object sender, System.EventArgs e)
        {
            //清除用Clear方法
            uiFlowLayoutPanel1.Clear();
            //或者用
            //uiFlowLayoutPanel1.Panel.Controls.Clear();

            uiButton3.Enabled = false;
        }

        private void uiButton3_Click(object sender, System.EventArgs e)
        {
            if (btn != null)
            {
                //移除用Remove方法
                uiFlowLayoutPanel1.Remove(btn);
                //或者用
                //uiFlowLayoutPanel1.Panel.Controls.Remove(btn);

                btn = null;
            }

            uiButton3.Enabled = false;
        }
    }
}
