在Form1中,假如为子父窗体的时候.
private Form3 f3;
public System.Windows.Forms.TreeView treeView1;
f3=new Form3();
f3.GetForm1=this;
f3.MdiParent=this;
f3.Show();
在 Form3中:
private Form1 form1;
public Form1 GetForm1
{
get
{
return form1;
}
set
{
form1=value;
}
}
private void Form3_Activated(object sender, System.EventArgs e)
{
this.form1.treeView1.Nodes.Clear();
}
功能,在触发F3时,清空F1中树控件的所有节点内容.