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I am trying to modify a list entry form using InfoPath. I want to make one text field conditionally required based on the value of a lookup field. When I create this validation rule on a text field: 
 
MyLookupField is equal to &quot;some text&quot; AND 
MyTextField is blank 
 
It only allows me to only type a number for the 'is equal to'. Why? 
 
When I changed to this: 
 
MyLookupField contains &quot;some text&quot; AND 
MyTextField is blank 
 
I can now type text but it still doesn't work. 
 
What am I doing wrong?
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I am trying to modify a list entry form using InfoPath. I want to make one text field conditionally required based on the value of a lookup field. When I create this validation rule on a text field:

MyLookupField is equal to "some text" AND
MyTextField is blank

It only allows me to only type a number for the 'is equal to'. Why?

When I changed to this:

MyLookupField contains "some text" AND
MyTextField is blank

I can now type text but it still doesn't work. 

What am I doing wrong?

Problem with conditional validation in InforPath 2010

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