CDialog区域显示问题

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.    这里一个Buton“A”  这里一个Button“B”                                           .
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.             区域"C"                                  .
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首先我用vs2003建了个Dialog工程，又添加了两个CFormView，单击“A”是把Form1显示在区域“C”，点击“B”时把Form2显示在区域“C”，并且可以来回切换，请问这样合理吗？如果合理应该怎样做呢？等待中。                                           .