打开另一个表单时如何关闭子表单 [英] How to close child form when another form opend

问题描述

嗨
我想在另一个子表单时关闭该子表单，请给我相应的代码，

我想问客户关闭当前表格不是吗?如果他单击确定"，则表格应关闭.

USIND MDIPARENT

我总共有10个子窗体，如果一个打开的窗体又要关闭.

Hi
I want to close the child form when another child form please give me the code for that,

and i want to ask the customer to close the current form are not ? if he clicks on okay the form should close.

USIND MDIPARENT

I have totally 10 child forms, if one form opened another should close.

推荐答案

在您的父窗体中，处理子窗体FormClosing事件.触发时，您可以询问用户，并使用secondChildFormInstance.Close()方法关闭第二个子窗体.

In your parent form, handle the Child form FormClosing Event. When it fires, you can ask the user, and close the second child form if you need to - with the secondChildFormInstance.Close() method.

一种方法是关闭并打开该子项来自MDIParent.当要打开新表单时，可以检查 Form.MdiChildren属性 [ ^ ]中是否有子项，并在必要时将其关闭.

One way to do this is that you close and open the child forms from the MDIParent. When a new form is going to be opened you can check Form.MdiChildren Property [^] if there are any children and close them if necessary.

也许这段代码将对您有所帮助

May be this code will help you

//Get all  child forms in MDI container
            Form[] ChildFormArray = this.MdiParent.MdiChildren;

            // Loop through all child form.
            for (int iCount = 0; iCount < ChildFormArray.Count(); iCount++)
            {
               if( MessageBox.Show("Do you want to close this form " +ChildFormArray[iCount].Text, "", MessageBoxButtons.YesNo )==DialogResult.Yes)
                {
                   //Close child form
                    ChildFormArray[iCount].Close();
                }
               
            }

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