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Control p = this;
FrmMain frmMain=null;
do{
p = p.Parent;
if(p is FrmMain ){
frmMain = (FrmMain)p;
break;
}
}
while(p!=null)
if(frmMain !=null){
FrmView frmView = new FrmView();
frmMain.ChangePanel(frmView);
}
while少打了Control p = this;
FrmMain frmMain=null;
do{
p = p.Parent;
if(p is FrmMain ){
frmMain = (FrmMain)p;
break;
}
}
if(frmMain !=null){
FrmView frmView = new FrmView();
frmMain.ChangePanel(frmView);
}
while(p!=null)FrmMain frmMain = this.Parent as FrmMain;
if(frmMain !=null){
FrmView frmView = new FrmView();
frmMain.ChangePanel(frmView);
}