组框C＃中的中心元素

Question

我已经创建了窗口应用程序，并希望将元素置于组框中。我可以用代码吗？

groupbox

Answer 1

此代码假定您将完全在代码中创建其他控件，而不是使用Designer。 如果您使用Designer，只需删除

行

  

按钮按钮=新按钮（）{文字=＆＃34;按钮1＆＃34; };

并将按钮控件的名称放在下一行。

    private void AddControlsToGroupBox()
    {
        Button button = new Button() { Text = "Button1" };
        CentreControlInGroupBox(this.groupBox1, button);
    }

    private void CentreControlInGroupBox(GroupBox theGroupBox, Control theControl)
    {
        // Find the centre point of the Group Box
        int groupBoxCentreWidth = theGroupBox.Width / 2;
        int groupBoxCentreHeight = theGroupBox.Height / 2;

        // Find the centre point of the Control to be positioned/added
        int controlCentreWidth = theControl.Width / 2;
        int controlCentreHeight = theControl.Height / 2;

        // Set the Control to be at the centre of the Group Box by
        // off-setting the Controls Left/Top from the Group Box centre
        theControl.Left = groupBoxCentreWidth - controlCentreWidth;
        theControl.Top = groupBoxCentreHeight - controlCentreHeight;

        // Set the Anchor to be None to make sure the control remains
        // centred after re-sizing of the form
        theControl.Anchor = AnchorStyles.None;

        // Add the control to the GroupBox's Controls collection to maintain 
        // the correct Parent/Child relationship
        theGroupBox.Controls.Add(theControl);            
    }

代码还假设您只在组框中放置一个控件。我不认为如果有多个控件，你会发现很难相应地调整样本。