CTaskDialog::AddRadioButton

發行項
06/10/2015

將選項按鈕加入至 CTaskDialog。

void CTaskDialog::AddRadioButton(
   int nRadioButtonID,
   const CString& strCaption,
   BOOL bEnabled = TRUE
);

參數

[in] nRadioButtonID
選項按鈕的識別項。
[in] strCaption
CTaskDialog 在選項按鈕旁顯示的字串。
[in] bEnabled
布林值 (Boolean) 參數選項按鈕是否已啟用。

備註

CTaskDialog 類別的選項按鈕可讓您向使用者收集資訊。使用函式 CTaskDialog::GetSelectedRadioButtonID 判斷哪個選項按鈕已選取。

CTaskDialog 不需要 nRadioButtonID 參數為每一個選項按鈕是唯一的。不過，因此，如果您不必為每個選項按鈕，使用不同的識別項可能會發生非預期的行為。

範例

// TODO: Replace the strings below with the appropriate message,  
// main instruction, and dialog title
CString message("This is an important message to the user.");
CString mainInstruction("Important!\nPlease read!");
CString title("Alert Dialog");

CTaskDialog taskDialog(message, mainInstruction, title, 
    TDCBF_YES_BUTTON | TDCBF_NO_BUTTON | TDCBF_CANCEL_BUTTON );

taskDialog.AddRadioButton(201, L"First option");
taskDialog.AddRadioButton(202, L"Second option");
taskDialog.AddRadioButton(203, L"Third option");

taskDialog.DoModal();
int selection = taskDialog.GetSelectedRadioButtonID();

switch(selection)
{
case 201:
    // TODO: Place processing here for the first  
    // radio button. 
    break;

case 202:
    // TODO: Place processing here for the second  
    // radio button. 
    break;

case 203:
    // TODO: Place processing here for the third  
    // radio button. 
    break;

default:
    break;
}

// Remove all the radio buttons so that we can use the same task 
// dialog with new radio buttons.
taskDialog.RemoveAllRadioButtons();

taskDialog.AddRadioButton(301, L"New first option");
taskDialog.AddRadioButton(302, L"New second option");
taskDialog.AddRadioButton(303, 
    L"New third option should be disabled");

// Change the default radio button to the second option
taskDialog.SetDefaultRadioButton(302);

// Make sure the third option is disabled. 
if (taskDialog.IsRadioButtonEnabled(303))
{
    taskDialog.SetRadioButtonOptions(303, FALSE);
}

taskDialog.DoModal();
selection = taskDialog.GetSelectedRadioButtonID();

switch(taskDialog.GetSelectedRadioButtonID())
{
case 301:
    // TODO: Place processing here for new first  
    // command button control. 
    break;

case 302:
    // TODO: Place processing here for new second  
    // command button control. 
    break;

case 303:
    // TODO: Place processing here for the new third  
    // command button control. 
    break;

default:
    break;
}

// Remove all the radio button controls and add new ones from 
// the string table resource.
taskDialog.RemoveAllRadioButtons();
taskDialog.LoadRadioButtons(1001, 1005);