>In my Test.scx i placed one text box namely txtbasic, user want to enter only numeric value so i set format property "9" so user can not enter any character on the text box. Instead of this i want alternate method, when user try to enter any character on the text box the message box pop up and tell "Hey It is not Numeric"
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>how to do this?

A better option - in most cases - is to make the database field numeric. In any case, what would be the advantage of your "alternate method"?

Validation in this case is somewhat complicated; you could do a transformation in which you take out all digits and periods (for the decimal point) as well as hyphen (for minus), and see if there is anything left (there shouldn't). Additional check are required, for example: there should be only minus sign, and it should be the leftmost character; and there should be either zero or one points. - It is easier, and usually better, to let Visual FoxPro do this validation, for example with the numeric InputMask.

You could also just convert to numeric with the val() function. In this case, the first non-numeric character, and anything after that, will be discarded - but you get no error message.