隐藏/显示MdiChilds

本文关键字：MdiChilds 显示 隐藏 | 更新日期: 2023-09-27 18:05:12

我有一个mdi应用程序。我有在父一些链接，其中，当单击打开一个新的子窗体，并隐藏一个已经打开如何查看child是否已打开?

A little scenario:  
link 1 -> opens Child of type A  
link 2 -> opens Child of type B  
link 3 -> open Child of type C  
Application start:  
click on link 1-> check if a child of type A is opened 
 - yes -> hides the current opened child and shows the A-type Child
 - no: -> hides the current opened child and creates a new A-type child and shows it  
click on link 2 -> check if a child of type B is opened  
 - yes -> hides the current opened child and shows the B-type Child  
 - no: -> hides the current opened child and creates a new A-type child and shows it
etc..

你能帮我写一些代码吗?
谢谢你…

更新:
像这样的?

 foreach (Form aForm in this.MdiChildren)
            {
                aForm.Hide();
            }
        foreach (Form f in this.MdiChildren)
        {
            if (f.Name == "VizualizareArticol")
                f.Show();
            else
            {
                VizualizareArticol vv = new VizualizareArticol();
                vv.MdiParent = this;
                vv.StartPosition = FormStartPosition.Manual;
                vv.Location = new Point(0, 0);
                vv.Show();
            }
        }

隐藏/显示MdiChilds

检查是否为Control.Visible。如果项目是可见的，你可以隐藏它，如果它不可见。否则，请查看您创建的对象。

如果你已经创建了一个表单并隐藏了它，它就不可见了。因此，您可以检查. visible并显示表单。

if(null != aForm  && !aForm.Visible){
    aForm.Show() 
    aForm.BringToFront();
}else if(null == aForm){
    // create the form
}
// otherwise form is existing & visible
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