for ex in Arcgis(arcobjects) , i do this by creating a predefined list of fieldnames . i loop through predefined list to check if the fieldname exist ,if yes then i will read type,width,precion,length using pfeatlyr.FeatureClass.Fields.Fieldij].Type,
pfeatlyr.FeatureClass.Fields.Field.j].Length
pfeatlyr.FeatureClass.Fields.Fieldsj].Name
similarly how can i achieve this in FME
I'm not sure I fully understand, but if you need to validate the input schema, either use a "Schema (any format)" reader (http://docs.safe.com/fme/html/FME_ReadersWriters/FME_Readers_Writers.htm#schema/Feature_Representation.htm%3FTocPath%3DFME%2520Readers%2520and%2520Writers%7CSchema%2520(Any%2520Format)%2520Reader%7C_____3) or a FeatureReader transformer. You will then get one feature per table with a list containing the field names and their definitions (data type and length).
David
I donot want to loop through features and get values . I want to read only the fieldnamesecolumn name] and their datatype using *.shp files
As u can see in image below ,the navigator pane has 8 fieldnames and their datatype.
i want to read and validate them .
.
Do not use the FILEGDB reader, use the "Schema (any format)" reader. It will only output one single feature containing the schema definition, regardless of the Shape file contents.
David