Differences between show () and showdialog ()

Show and What is the difference between showdialog and show and showdialog? I believe that you will have a clear answer when reading this blog. Speaking of show and Showdialog Many people will think of the difference that one is a non-modal one is a modal form, the modal form must be closed (ccose) or hidden (hide) in order to operate on other forms. This is only the apparent difference between them. The real difference is not limited to this. There are two essential differences between show and showdialog: one is Code The difference in execution; one is that its own mechanism is different. Differences in Code Execution This difference is easy to find, Show The method is returned immediately when the new form is displayed. Show The code after the method call statement is executed. Showdialog Method calls will be blocked until the new form is closed ,Showdialog The code after the method call statement can be executed. Differences between mechanisms I wonder if you have noticed this. Please refer

Click modal display Form 2, enter some content in the text box, and then click "X" in the upper right corner"

Click "Modal display Form 2" in Form 1 again. At this time, you will find that the text in the text box still exists. What is this? At this time, Form 2 is not close, but is just hide (not sure if it is the same as hide at this time ). If you want to click the mode again to display a New Form 2, you only need to write it in the closing or closed event of Form 2. Me. Dispose. What if I click "Modal display" for the first time, enter the text, drop "X", and click "normal display? What will happen if "X" is dropped again?
Do you want to know the answer? Try it on your own! Haha!