在C#中在父窗体的中心显示子窗体 [英] Show a child form in the centre of Parent form in C#
问题描述
我创建一个新表单并从父表单调用,如下所示:
I create a new form and call from the parent form as follows:
loginForm = new SubLogin();
loginForm.Show();
我需要在父窗体的中心显示子窗体.所以,在子表单加载中,我做了以下操作:`
I need to display the child form at the centre of the parent. So,in the child form load I do the foll:`
Point p = new Point(this.ParentForm.Width / 2 - this.Width / 2, this.ParentForm.Height / 2 - this.Height / 2);
this.Location = p;
但这会引发错误,因为父表单为空.我也尝试设置 Parent 属性,但没有帮助.对此有任何意见吗?
But this is throwing error as parent form is null. I tried setting the Parent property as well, but didn't help. Any inputs on this?
推荐答案
尝试:
loginForm.StartPosition = FormStartPosition.CenterParent;
loginForm.ShowDialog(this);
当然,子窗口现在将是父窗口的阻塞窗体(对话框),如果不需要,则只需将 ShowDialog
替换为 Show
..
Of course the child for will now be a blocking form (dialog) of the parent window, if that isn't desired then just replace ShowDialog
with Show
..
loginForm.Show(this);
尽管如此,您仍然需要指定 StartPosition.
You will still need to specify the StartPosition though.
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