单击按钮以使文本出现在另一个表单文本框中

Question

I am using Visual Studio. I have 2 forms (formA and formB). There is a button on formA. When I click it, I want a word to appear on formB. This is what I have in formA.cs. FormB is the public class name in formB.

 private void button1_Click(object sender, System.EventArgs e)
    {
        FormB search1 = new FormB();
        search1.TextBox.Text = "test123";
    }

However, when I run my program, no text appears in formB. Can you please help?

Answer 1

Make a constructor on FormB with parameter;

public FormB(string str)
{
  InitializeComponent();
  textBox1.Text = str;
}

then from FormA initialize FormB and pass your parameter.

private void button1_Click(object sender, System.EventArgs e)
{
FormB search1 = new FormB("test123");
search1.Show();
}