在其父级中心显示对话框

Question

在其父窗体的中心显示一个DialogBox是一团糟.这是一个显示对话框的方法.

我将其父级定位到中心,但无法使DialogBox居中

private void OpenForm(Object point, Object height, Object width)
{
    FormLoading frm = new FormLoading();
    Point temp = (Point)point;
    Point location = new Point(temp.X + (int)((int)width) / 2, 
                               temp.Y + (int)((int)height) / 2);
    frm.Location = location;
    frm.ShowDialog();
}

private void btnView_Click(object sender, EventArgs e)
{
    try
    {                    
        ThreadStart starter= delegate { OpenForm(currentScreenLocation, 
                                                 this.Height, this.Width); };
        Thread t = new Thread(starter);
        t.Start();
        ////// Some functionality here...
        t.Abort();
    }
    catch (Exception)
    {
    }
}

Answer 1

您可能想要查看Form.StartPosition酒店.

http://msdn.microsoft.com/en-us/library/system.windows.forms.form.startposition.aspx

类似的东西:

private void OpenForm(Form parent)
{
    FormLoading frm = new FormLoading();
    frm.Parent = parent;
    frm.StartPosition = FormStartPosition.CenterParent;
    frm.ShowDialog();
}

这当然需要设置表单的父级.

Answer 2

form1.StartPosition = FormStartPosition.CenterScreen;

请参阅http://msdn.microsoft.com/en-us/library/system.windows.forms.form.startposition(v=vs.110).aspx

Answer 3

如果您正在制作自定义 MessageBox，您可以简单地输入：

CenterToParent();

在您的自定义 MessageBoxformload()方法中。