"2017-05-02" WinForm pop-up warning box for redaction operations, Notepad Authoring, dialog box controls, and output input streams

First, WinForm pop-up warning box whether to make a pruning operation

The first parameter is what the popup form displays, the second parameter is the caption, and the third parameter is the pop-up window containing the OK and Cancel buttons.

An enumeration class is returned to receive a bit.

Again to judge, if the point is to determine the button, and then the next step of adding and removing operations.

Second, the production of Notepad

1. menu Toolbar menustrip-Insert Standard Item

2. TextBox-Display Section

Small arrow MultiLine Select multiple rows

The Dock property is full.

3. function

-Revoke

-Cut

-Paste

-Copy

-delete

-Select All

-Time

-Find

Make a single form click Open

Pass the main window to the Search window

Expansion: Three types of window opening

1, objects.   Show (); Open freely

2, objects. Owner=this

Object. Show ();

Opens the window above the parent window, which can manipulate the parent window while the child window is open.

3, objects.    ShowDialog (); Open in the form of a pop-up window, and the parent window cannot be manipulated without closing the subwindow.

Expand: How to invoke the control of the main window in a child window

Passes the main window through the constructor to the child window, and then changes the control's access modifier's private to public in the generated code of the main window control.

You can call the control of the parent window.

-Wrap Line

Iii. dialog box controls and input and output streams

1, ColorDialog-color selection

2. FontDialog-Font selection

3. OpenFileDialog-Open File dialog box

Have a file path, how do I open this file?
Using Stream IO

Using System.IO;

4. SaveFileDialog-Save dialog box

First because of the namespace using System.IO;

StreamReader Read stream

Streamwrite output stream

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"2017-05-02" WinForm pop-up warning box for redaction operations, Notepad Authoring, dialog box controls, and output input streams