在c#中点击主窗体的控件，调用子窗体，并在子窗体中显示内容？？

添加一个窗体，名为form2，原窗体名为form1，工程名为 form ，双击Form2.Designer.cs：将 private System.Windows.Forms.TextBox textBox1; 改为：public System.Windows.Forms.TextBox textBox1; form1中的命令按钮的单击代码： using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace form
{
public partial class Form1 : Form
{
public Form2 f2 = new Form2();
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
f2.Owner = this;
f2.textBox1.Text = "ffddsf";
f2.ShowDialog();
}
}
}

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有详细的步骤

创建子窗体时 顺便给传个值就是咯