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This article is about how VB.NET 's new forms technology works. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

A new Windows forms model

The form in .NET changes the form model in VB6, and the form is no longer a special file. Editing the properties of a form or a control on a form will produce the same real VB.NET code as you set the properties in the code. Let's analyze the characteristics of the new VB.NET form designer through an example and take a look at the code generated by visual editing.

In this area, you will see several key elements:

◆ A form constructor (constructor) (a Sub New ())

◆ a release (Dispose) program

Declaration of all controls in the new VB.NET form

A subroutine constructor and release program named InitializeComponent is basically equivalent to the Class_Initialize and Class_Terminate events in VB6. The code generated by the designer is essentially the other two parts-the list of control declarations and the InitializeComponent program. Take a look at the code generated by creating this simple example. It is as follows:

'NOTE: The following procedure is required by the Windows Form Designer'It can be modified using the Windows Form Designer. 'Do not modify it using the code editor. Friend WithEvents Button1 As System.Windows.Forms.Button _ Private Sub InitializeComponent () Me.Button1 = New System.Windows.Forms.Button Me.SuspendLayout () 'Button1 Me.Button1.Location = New System.Drawing.Point (96,88) Me.Button1.Name = "Button1" Me.Button1.TabIndex = 0 Me.Button1.Text = "Button1"' Form1 Me.AutoScaleBaseSize = New System.Drawing.Size (5,13) Me.ClientSize = New System.Drawing.Size Me.Controls.Add (Me.Button1) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout (False) End Sub

From lines 12 to 15 in the above code, you can see that it is used to set properties such as the size of the button. If you add some of your own code, even some simple code, it will produce unexpected results. Here, we just add a simple line of code as follows:

'Button1 Me.Button1.Location = New System.Drawing.Point (96,88) Me.Button1.Name = "Button1" Debug.WriteLine ("Testing!") Me.Button1.TabIndex = 0 Me.Button1.Text = "Button1" Thank you for reading! This is the end of this article on "how the new VB.NET form technology works". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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