InfoPath Dev

 It's just perfect! Thank you for your help.

In InfoPath Filler, this expression works -> count(xdXDocument:GetDOM("CNSS")/dfs:myFields/dfs:dataFields/d:SharePointListItem_RW/d:ListSiteNames[msxsl:string-compare(current(), ., "", "i") = 0]) > 0 but when I publish, I've got an error : "an invalid expression has been detected : ...

You are great! It works! Many many thanks.

 The expression is accepted but the condition is not fulfilled, and the error is not indicated.

 Hi Hilary, Thank you for answering. When I replace the expression in the rule by  "xdXDocument:GetDOM("CNSS")/dfs:myFields/dfs:dataFields/d:SharePointListItem_RW[msxsl:string-compare(current(),ListSiteNames, "", "i") = 0] ", it doens't work. Best regards. ...

Hello, My request is simple. In a form, I would like to compare if the value of a field already exists in a sharepoint list. I've created a data connection (with a sharepoint list) that I can use for some treatment. For a field, I made a validation rule which compares his value with the values of the existing sharepoint list. The rule is : ...