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I want to check in the data table(Globalsheet) column exist
or not through script .If column not exist only proceeded
to next step Pls tell me how to proceeded?

Answer Posted / drew

Answer 1 is good if you don't have a lot of data to write to
the data table. I sometimes have 20 columns to write to and
to check for the column each time before writing the data
can take 2 or more seconds each (40 seconds for the entire
row)...way to long if doing a repetitive task.

Answer 3 won't work because you will get a QTP error on the
line "Val = DataTable("UserId", dtGlobalSheet)" if the
column doesn't exist. But you can use that error to make a
very speedy function to find out if the column exists:

If COM_DoesDataTableColumnExist("Global","Column1") Then
''Column Exists
Else
''Column Does Not Exist
End If

Public Function COM_DoesDataTableColumnExist(ByVal
strSheetName,ByVal strColumnName)
Dim blnReturnValue
Dim strTestColumn

Err.Clear
On Error Resume Next
strTestColumn =
DataTable.GetSheet(strSheetName).GetParameter(strColumnName).Name

If Err <> 0 Then
blnReturnValue = False
Else
blnReturnValue = True
End If
Err.Clear

COM_DoesDataTableColumnExist = blnReturnValue
End Function

Is This Answer Correct ?    21 Yes 5 No



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