Why empty cell throws an error during SQL stored procedure execution

Question

SELECT
    CAST ([content_html] AS XML).query(\'/root/Physicians/specialty/a\') AS [Specialty1]
    , CAST ([content_html] AS XML).query(\'/root/Physicians/specialty2/a\         


        

Answer 1

The stack trace and error message you provided state exactly why it isn't working. It says

DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Specialty3'.

which is coming out of

...
System.Web.UI.DataBinder.Eval(Object container, String[] expressionParts) +142
...

which means it is erroring where you are doing Eval("Specialty3").

What all this boils down to is that the data set coming back from your database doesn't contain a column named Specialty3. It could be from a misspelling, from not updating a proc or for a number of other reasons.