C# 遍历界面的控件并赋值

private void button2_Click(object sender, EventArgs e)
{
foreach (Control cur in Controls)
{
if (cur is TextBox )
{
string name = cur.Name;
cur.Text = name.Substring(name.Length-1,1);
}
}
}

 

private void button3_Click(object sender, EventArgs e)
{
Control col = this.Controls.Find("button1", true)[0];
Button btn = col as Button;//转为Button
btn.Text = "haha";
}

Controls["button" + "1"].BackColor = Color.Green;