how to restrict the date format by using the monthview_control?

I dun know why I enter the date in the monthview_control, it output to text format, not the date format..
Thus, how can I restrict the date format?

Thanks,jason


I have used this code, but it cannot output the date format of 13-31/7/2013, it output to the text format

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Re lotuxel,
I have used your code.

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But it still cannot output the date format of 13-31/7/2013, it output the text format

I have used this code before, it is quite similar to yours.

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