父窗框mainForm;子窗體childForm,利用事件進行傳值
在子窗體中的操作:
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);//當事件觸發時,傳遞自身引用
}
}
在父窗體中的操作:
childForm frmChild=new childForm();
private void btnForm_Click(object sender, EventArgs e)
{
if(frmChild.IsDisposed)
{
frmChild=new childForm();//時刻保持隻有一個窗體顯示
}
frmChild.accept += new EventHandler(Main_accept);
frmChild.Show();
}
//父窗體處理子窗體傳來的值
public void Main_accept(object sender, EventArgs e)
{
childForm frmChild= (childForm)sender;
string childValue = childForm .value;
txtUser.text=childValue;
}