private StringBuilder DoAddParameters(SqlParameterCollection parameters, TableAdapterContext ctx, IEnumerable <string> paramColumns)
{
parameters.Clear();
if (paramColumns == null)
{
return(null);
}
StringBuilder sqlParamText = new StringBuilder();
TableSchema tblSchema = ctx.TableSchema;
int counter = 0;
foreach (string colName in paramColumns)
{
DataRow dtRow = tblSchema.ColumnDef(colName);
AddParameter(dtRow, ref parameters, ref sqlParamText, counter, ctx.KeyColumns);
counter++;
}
return((counter > 0)? sqlParamText: null);
}
