myForm.StartPosition = this.CenterToParent() 出问题，请问何解？谢谢

Question

以下是mainform弹出frmabout窗体，要在父窗体中间。frmAbout myForm = new frmAbout();
myForm.Owner = this;
myForm.StartPosition = this.CenterToParent();  --> 出错
myForm.Show();错误原因：错误 1 无法将类型“void”隐式转换为“System.Windows.Forms.FormStartPosition”请问何解？谢谢

Answer 1

StartPosition 是个属性....
CenterToParent();  是个方法......

Answer 2

myForm.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

Answer 3

this.StartPosition = FormStartPosition.CenterParent;

Answer 4

this.StartPosition = CenterToParent