Question

我正在编写一个使用app.config文件的Composite size部分来获取变量的程序。以下是我目前情况的一个例子：

public class LayoutingScrolledComposites extends AbstractEntryPoint {
    public void createContents( Composite parent ) {    
        parent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        parent.setLayout(new GridLayout(2, false));

        ScrolledComposite sc1 = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
        Composite c1 = new Composite(sc1, SWT.BORDER);
        sc1.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, true, true));
        c1.setLayout(new GridLayout(3, false));
        sc1.setContent(c1);
        Label l1 = new Label (c1, SWT.BORDER);
        l1.setText("Some text");
        l1 = new Label (c1, SWT.BORDER);
        l1.setText("Some text");
        l1 = new Label (c1, SWT.BORDER);
        l1.setText("Some text");
        c1.setSize(c1.computeSize(SWT.DEFAULT, SWT.DEFAULT));

        ScrolledComposite sc2 = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
        sc2.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, true, true));
        Composite c2 = new Composite(sc1, SWT.BORDER);
        c2.setLayout(new GridLayout(3, false));
        sc2.setContent(c2);
        Label l2 = new Label (c2, SWT.BORDER);
        l2.setText("Some text");
        l2 = new Label (c2, SWT.BORDER);
        l2.setText("Some text");
        l2 = new Label (c2, SWT.BORDER);
        l2.setText("Some text");
        c2.setSize(c2.computeSize(SWT.DEFAULT, SWT.DEFAULT));

        parent.addListener(SWT.Resize, new Listener() {
            public void handleEvent(Event e) {
                int sc1_x = sc1.getContent().getSize().x;
                int sc2_x = sc2.getContent().getSize().x;

                //Enable/Disable grabExcessHorizontalSpace based on whether both sc's would fit in the shell
                if (LayoutingScrolledComposites.this.getShell().getSize().x > sc1_x+sc2_x) {
                    if (((GridData)sc1.getLayoutData()).grabExcessHorizontalSpace) {
                        //sc1 does not change width in this mode
                        ((GridData)sc1.getLayoutData()).grabExcessHorizontalSpace=false;                        
                    }
                } else {
                    if (!((GridData)sc1.getLayoutData()).grabExcessHorizontalSpace) {
                        //sc1 changes width in this mode
                        ((GridData)sc1.getLayoutData()).grabExcessHorizontalSpace=true;                     
                    }
                }
                parent.layout(); //Needed so that the layout change would take effect during the same event
            }
        });
    }
}

，app.config文件如下所示：

<appSettings>

这一切都很好，我可以保持这种方式。 我的问题只是我觉得它看起来很难看。我一直在四处寻找密钥是否可以嵌套，所以我可以用另一个密钥做这样的事情：

string ip =         ConfigurationManager.AppSettings["IP"];
string var1 =       ConfigurationManager.AppSettings["Var1"];
string var2 =       ConfigurationManager.AppSettings["Var2"];
string remotePath = @"\\" + ip + @"\C";

我在app.config中知道variables aren't easily possible，我的问题不足以让我对做大量的工作感兴趣，我只是感兴趣是否可以进行密钥嵌套？我无法从谷歌那里找到任何肯定或否定的暗示。

在app.config文件中，可以嵌套键吗？

0 个答案: