C # Analysis of Development and Application Instances of draw line controls

Before introducing the application example of the C # Draw line control, we need to understand that there is no draw Line Control in C #. Here we have written one for you to share. There are two controls that draw a horizontal line and a vertical line respectively. You can share with us about how to draw a diagonal line.

C # horizontal line of the draw Line Control

Using system;

Using system. collections;

Using system. componentmodel;

Using system. drawing;

Using system. Data;

Using system. Windows. forms;

 

Namespace Jiashi. wincontrols

{

///

/// LinEx

///

Public class LinEx: system. Windows. Forms. usercontrol

{

 

# Region attribute Definition

Private system. Drawing. Color linecolor;

Private int linewidth;

///

/// Color attribute of the line

///

Public System. Drawing. Color linecolor

{

Set

{

This. linecolor = value;

System. Windows. Forms. painteventargs Ep =

New painteventargs (this. creategraphics (),

This. clientrectangle );

This. linex_paint (this, EP );

}

Get {return this. linecolor ;}

}

///

/// Line width

///

Public int linewidth

{

Set

{

This. linewidth = value;

System. Windows. Forms. painteventargs Ep =

New painteventargs (this. creategraphics (),

This. clientrectangle );

This. linex_paint (this, EP );

}

Get {return this. linewidth ;}

}

# Endregion

Private system. componentmodel. Container components = NULL;

 

///

/// The initial color and line width of the constructor

///

Public LinEx ()

{

Initializecomponent ();

This. linecolor = This. forecolor;

This. linewidth = 1;

 

}

 

///

/// Clear all resources in use.

///

Protected override void dispose (bool disposing)

{

If (disposing)

{

If (components! = NULL)

{

Components. Dispose ();

}

}

Base. Dispose (disposing );

}

 

# Code generated by the region component designer

///

/// The designer supports the required methods-do not use the code editor

/// Modify the content of this method.

///

Private void initializecomponent ()

{

//

// LinEx

//

This. Name = "LinEx ";

This. Resize + = new system. eventhandler (this. linex_resize );

This. Paint + =

New system. Windows. Forms. painteventhandler (this. linex_paint );

 

}

# Endregion

 

Private void linex_paint (Object sender,

System. Windows. Forms. painteventargs E)

{

Graphics G = E. graphics;

Pen mypen = new pen (this. linecolor );

Mypen. width = This. linewidth * 2;

This. Height = This. linewidth;

G. drawline (mypen, 0, 0, E. cliprectangle. Right, 0 );

}

 

Private void linex_resize (Object sender, system. eventargs E)

{

This. Height = This. linewidth;

}

}

}

C # vertical line of the draw Line Control

Using system;

Using system. collections;

Using system. componentmodel;

Using system. drawing;

Using system. Data;

Using system. Windows. forms;

 

Namespace Jiashi. wincontrols

{

///

/// Liney draws a vertical bar Control

///

Public class Liney: system. Windows. Forms. usercontrol

{

 

# Region attribute Definition

Private system. Drawing. Color linecolor;

Private int linewidth;

///

/// Color attribute of the line

///

Public System. Drawing. Color linecolor

{

Set

{

This. linecolor = value;

System. Windows. Forms. painteventargs Ep =

New painteventargs (this. creategraphics (),

This. clientrectangle );

This. liney_paint (this, EP );

}

Get {return this. linecolor ;}

}

///

/// Line width

///

Public int linewidth

{

Set

{

This. linewidth = value;

System. Windows. Forms. painteventargs Ep =

New painteventargs (this. creategraphics (),

This. clientrectangle );

This. liney_paint (this, EP );

}

Get {return this. linewidth ;}

}

# Endregion

Private system. componentmodel. Container components = NULL;

 

///

/// The initial color and line width of the constructor

///

Public Liney ()

{

Initializecomponent ();

This. linecolor = This. forecolor;

This. linewidth = 1;

 

}

 

///

/// Clear all resources in use.

///

Protected override void dispose (bool disposing)

{

If (disposing)

{

If (components! = NULL)

{

Components. Dispose ();

}

}

Base. Dispose (disposing );

}

 

# Code generated by the region component designer

///

/// The designer supports the required methods-do not use the code editor

/// Modify the content of this method.

///

Private void initializecomponent ()

{

//

// Liney

//

This. Name = "Liney ";

This. Resize + =

New system. eventhandler (this. liney_resize );

This. Paint + =

New system. Windows. Forms. painteventhandler (this. liney_paint );

 

}

# Endregion

 

Private void liney_paint (

Object sender, system. Windows. Forms. painteventargs E)

{

Graphics G = E. graphics;

Pen mypen = new pen (this. linecolor );

Mypen. width = This. linewidth * 2;

This. width = This. linewidth;

G. drawline (mypen, 0, 0, 0, E. cliprectangle. Bottom );

}

 

Private void liney_resize (

Object sender, system. eventargs E)

{

This. width = This. linewidth;

}

}

}

The development of the C # Draw line control will introduce you here, hoping to help you understand and learn the C # Draw line control.