Get exception in my dataset when reading a xml-schema with empty fields


I call a web service, the result is a xml (dataset).

The xml contains empty fields and I want my dataset to replace the empty fields with default values. This doesn't work and when I try to reach the fields I get a exception. The field has no value.

I want the dataset to set defaultvalues for empty fields.
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what is the exception?
TYBAuthor Commented:
An unhandled exception of type 'System.Data.StrongTypingException
How do you work with the data? Do you load it into a dataset? If then there really should be no problem in looping through the datatables rows and check for null value in each column.

foreach(DataRow row in ds.Tables["tablename"/index].Rows)
for(int i=0;i<row.items.length;i++)
if(row[i].ToString() == "")
row[i] = "put your value here...";
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TYBAuthor Commented:
The web service return the dataset as return value.

MyWebservice myService = new MyWebservice();

DataSet dSet = new DataSet();

dSet = myWebService().GetAll();
The above code should work fine for that then.

The exception that is thrown by a strongly-typed DataSet when the user accesses DBNull value.

ie.  IF the dataset  returning the DBnull value this exception will throw.

plz give more details...


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