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; }