C # Multiple forms and Menu toolbars

Multiple forms:

1. Which is the main form

Problem: The main form is hidden, after closing other forms, the main form is not displayed/closed, then the program is closed

(1), the value of the constructor, the form is passed to another form

2. The form can only open one

Creates a global generic collection in order to place all open forms

(1), before the form opens, determine whether there is a name consistent form in the collection, if there is a description is open, do not open the

Issue: When the form is open and closed, it cannot be opened again

Workaround: Clears this form object record from the collection in Form1 when the form is closed

Issue: When the form is already open, clicking the Open button again will not re-display the open form and focus into

Workaround: Locate the Open object, set the WindowState property to: Find the object for the open form, and use the focus method;

3. Transfer values and controls between forms

Pass value: Constructor pass value

Control: The first step, locate the Form object, and the second step, change the control value of the Form object Note: To modify the access rights of objects in the form

4. The form of the prompt box type

ShowDialog ();

Role:

Menus and toolbars:

1, MenuStrip: Top menu Split Line: 1,-2, right-click Insert Split ...

Shortcut keys: The bottom of the right-click property for each item you can set the shortcut key to work regardless of whether the option is hidden or the menu is hidden

2. ContextMenuStrip: Right-click menu

3. Statusstript: Bottom Menu

4. ToolStrip Tool Bar

5, ToolStripContainer tool strip container

C # Multiple forms and Menu toolbars