How to shrink rdlc report on runtime?

I have an rdlc report. I have some text boxes over it. I hide and show them based on specific values. But the problem is, when a text box disappears, there comes blank space in report that looks so weired. Please su开发者_开发技巧ggest that is there any way that I hide the text box and the other text box come in its place and there will be no blank spaces occur in my report?

Please helpppppppp ASAP ....

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Usually you just overlap the textboxes in the designer, then either will display in the correct place regardless of whether you've shown / hidden.