Use of the single-choice button control (ridio button)

 

 

VC study Note 5: Use of the single-choice button control (ridio button)

1. Group Single-choice buttons:
Set attributes for the first single-choice button in each group: group, tabstop, and auto. Set attributes for other buttons: tabstop and auto.

For example:
Ridio1, ridio2, and ridio3 are a group, and ridio4 and ridio5 are a group.

Set ridio1 attributes: group, tabstop, auto
Set the ridio2 attribute: tabstop, auto
Set the ridio3 attribute: tabstop, auto

Set ridio4 attributes: group, tabstop, auto
Set the ridio5 attribute: tabstop, auto

Ii. Use classwizard to define a single-choice controlValue variable, Each group can only define one. For example, m_iridio1 and m_iridio4.

 

3. assign values to m_iridio1, 0 1st; 1 second; 2 third; value appended updatedata (false)

M_iridio1 = 2;

Updatedata (false );

Select the third button.

4. Use classwizard to generate the click message function of each radio button and add the following content:

Void cweditview: onradio1 ()
{
M_iridio1 = 0; // The first radio button is selected.
}

Void cweditview: onradio2 ()
{
M_iridio1 = 1; // The second radio button is selected.
}

Void cweditview: onradio3 ()
{
M_iridio1 = 2; // The third radio button is selected.
}

Void cweditview: onradio4 ()
{
M_iridio4 = 0; // The fourth radio button is selected.
}

Void cweditview: onradio5 ()
{
M_iridio4 = 1; // The fifth radio button is selected.
}

 

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In step 3, set the default button in oninitdialog to be more flexible.
4. Set the default button:
When defining a control variable, classwizard sets the initial value of the variable to-1 in the constructor. You only need to change it to another value.
For example:
// {Afx_data_init (cweditview)
M_ridio1 = 0; // The first radio button is selected at the beginning.
M_ridio4 = 0; // The fourth radio button is selected in the initial stage.
//} Afx_data_init

 

 

References