No entry in B1 unless A1 has a date AND it is earlier
Hello all
Wonder if this is possible. I realise Data Validation caters for restriction of dates but how do I stop any entry being made in B1 unless first there is an entry in A1? Many thnks ML |
No entry in B1 unless A1 has a date AND it is earlier
I did this in xl2003:
With B1 the active cell: Data|Validation Settings tab Custom Formula: =AND(ISNUMBER(A1),ISNUMBER(B1),A1<B1) and made sure that "Ignore Blank" is not checked. Be aware that this won't help if A1 is changed after the entry is made in B1. I'd add a warning message in C1(?) that showed up if the entries were not correct--big, red, letters. (In fact, I wouldn't use data|validation. I'd just use that helper cell with the warning message.) On 06/19/2011 05:07, Mr X Z wrote: Hello all Wonder if this is possible. I realise Data Validation caters for restriction of dates but how do I stop any entry being made in B1 unless first there is an entry in A1? Many thnks ML -- Dave Peterson |
No entry in B1 unless A1 has a date AND it is earlier
On Jun 19, 12:11*pm, Dave Peterson wrote:
I did this in xl2003: With B1 the active cell: Data|Validation Settings tab Custom Formula: *=AND(ISNUMBER(A1),ISNUMBER(B1),A1<B1) and made sure that "Ignore Blank" is not checked. Be aware that this won't help if A1 is changed after the entry is made in B1. I'd add a warning message in C1(?) that showed up if the entries were not correct--big, red, letters. (In fact, I wouldn't use data|validation. *I'd just use that helper cell with the warning message.) On 06/19/2011 05:07, Mr X Z wrote: Hello all Wonder if this is possible. I realise Data Validation caters for restriction of dates but how do I stop any entry being made in B1 unless first there is an entry in A1? Many thnks ML -- Dave Peterson Thanks Dave - I'll give it a try (I am using Xl2003). If you have a spare mo please have a look at the discussion here - http://groups.google.com/group/micro...99377d3f6505f# ML |
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