Visual Basic Power Packs controls allow us to draw lines, rectangle and oval shapes on your Windows Forms application. These controls accept many of the graphics methods of system. Drawing namespace. This enables you to draw lines and shapes in a single step without having to create graphics objects, pens, and brushes.
We can able to draw horizontal, vertical, and diagonal lines, rectangles, squares, ovals, circles, and rectangles and squares with the help of power pack graphical controls. Now we discuss about and Shape Controls
Introduction to the Line and Shape Controls
The Visual Basic Power Packs Line and Shape controls are a set of three graphical controls that enable you to draw lines and shapes on forms and containers.
LineShape control -is used to draw horizontal, vertical, and diagonal lines.
OvalShape control is used to draw circles and ovals.
RectangleShape control is used to draw rectangles and squares.
Line and Shape Object Model
Line and Shape controls derive from a base Shape class that defines their shared properties, methods, and events.
The following illustration shows the Line and Shape object hierarchy.
Line and Shape object hierarchy
Shape
LineShape
SimpleShape
OvalShape
RactangleShape
How to Draw Lines with the LineShape Control
- Drag the LineShape control from the Toolbox drag to a form or container control.
- Drag the sizing and move handles to size and position the line.
— —Or—–
Imports Microsoft.VisualBasic.PowerPacks
Dim ShapeCon As New ShapeContainer Dim testLine As New LineShape ShapeCon.Parent = Me testLine.Parent = ShapeCon testLine.StartPoint = New System.Drawing.Point(10, 10) testLine.EndPoint = New System.Drawing.Point(300, 300)
Note: When a Line or Shape control is added to a form or container, an invisible ShapeContainer object is created. The ShapeContainer acts as a canvas for the shapes within each container control
sir actually i have to select a line that is drawn in vb.net 2010 at run time……….
how i can do this??????????????????????/
please help me.
Hello Amit
Are you using powerpack for drawing a line at run time?
yes i m using power pack and line is drawn by me with drawline method also but i m not able to select this at run time.please help me.
Line can drawn with the help of two very common methods in .net
a. by using LineShape control of powerpack
b. By using drawline method of Graphics class.
you are saying you are using DrawLine method with powerpack…that is not good to hear.
can you clarify that why does you need to select the line?
sir now i have drwan a line and selected also by using lineshape control.bt nw m also facing a problem n that is when i go to a selected line ,i am not able to delete it.how can i do this?????
now i am using lineshape control for drawing a line.i want to select the line at run time for performing zoom,change the color of line,delete the line,etc.how can i do it??????plz suggest for this.
How do you clear the canvas