WinFrom子窗体向父窗体传值

时间:2022-05-25 17:54:58

父窗框mainForm;子窗体childForm,利用事件进行传值

在子窗体中的操作:

public event EventHandler accept;public string value;
private void btnStart_Click(object sender, EventArgs e)
{  
   value=txtName.text;  
   if(accept!=null)  
   {    
     accept(this, EventArgs.Empty);//当事件触发时,传递自身引用  
   }
}

在父窗体中的操作:

childForm frmChild=new childForm();

private void btnForm_Click(object sender, EventArgs e)

{

  if(frmChild.IsDisposed)

  {

    frmChild=new childForm();//时刻保持只有一个窗体显示

  }

    frmChild.accept += new EventHandler(Main_accept);

frmChild.Show();

}

//父窗体处理子窗体传来的值

public void Main_accept(object sender, EventArgs e)

{

childForm frmChild= (childForm)sender;

string childValue = childForm .value;

    txtUser.text=childValue;

}