Argentini.Halide.H3Reader.GetString C# (CSharp) Method

GetString() public method

Read a column value in as a string, by its column name.
public GetString ( string columnName, string defaultValue ) : string
columnName string Name of column to retrieve.
defaultValue string Default value to return if string is null or empty.
return string
        public string GetString(string columnName, string defaultValue)
        {
            try
            {
                String x = "";

                if (dr_Oledb != null)
                {
                    x = GetString(dr_Oledb.GetOrdinal(columnName));

                    if (String.IsNullOrEmpty(x))
                    {
                        x = defaultValue;
                    }
                }

                else
                {
                    x = GetString(dr.GetOrdinal(columnName));

                    if (String.IsNullOrEmpty(x))
                    {
                        x = defaultValue;
                    }
                }

                return x;
            }

            catch (Exception err)
            {
                _lastSqlError = err;
                return "";
            }
        }

Same methods

H3Reader::GetString ( int columnIndex ) : string
H3Reader::GetString ( string columnName ) : string

Usage Example

Example #1
0
        /// <summary>
        /// Initialize the DatabaseRow with a single row form a Halide.H3Reader object.
        /// </summary>
        /// <param name="reader">An open Halide.H3Reader object that can be used to read a row from a database.</param>
        public DatabaseRow(H3Reader reader)
        {
            _fieldCount = reader.FieldCount;

            try
            {
                _dataItems = new DatabaseItem[_fieldCount];

                if (_dataIndex != null) _dataIndex.Clear();

                for (int x = 0; x < _fieldCount; x++)
                {
                    _dataItems[x] = new DatabaseItem();

                    String columnName = reader.ColumnName(x).ToLower();

                    _dataIndex.Add(columnName, x);

                    _dataItems[x].IsNullable = reader.GetColumnAllowNulls(columnName);
                    _dataItems[x].ColumnName = columnName;
                    _dataItems[x].ColumnSize = reader.GetColumnSize(columnName);
                    _dataItems[x].ColumnSQLType = reader.GetDataTypeName(columnName).ToLower();
                    _dataItems[x].IsAutoIncrementing = reader.GetColumnIsAutoIncrement(columnName);
                    _dataItems[x].IsIdentity = reader.GetColumnIsIdentity(columnName);
                    _dataItems[x].IsPrimaryKey = reader.GetColumnIsKey(columnName);
                    _dataItems[x].SystemDataType = reader.GetColumnSystemDataType(columnName).ToLower();
                    _dataItems[x].Value = reader.GetString(columnName);
                }
            }
            catch
            {
            }
        }