/// <summary>
/// Get web data field as string.
/// </summary>
/// <param name="dataField">Data field.</param>
/// <returns>Web data field as string.</returns>
public static String WebToString(this WebDataField dataField)
{
StringBuilder stringBuilder;
if (dataField.IsNull())
{
return(String.Empty);
}
else
{
stringBuilder = new StringBuilder();
stringBuilder.Append("Data field:");
if (dataField.Information.IsNotEmpty())
{
stringBuilder.Append(" Information = [" + dataField.Information + "],");
}
stringBuilder.Append(" Name = " + dataField.Name);
stringBuilder.Append(", Type = " + dataField.Type);
if (dataField.Unit.IsNotEmpty())
{
stringBuilder.Append(", Unit = [" + dataField.Unit + "]");
}
stringBuilder.Append(", Value = [" + dataField.Value + "]");
return(stringBuilder.ToString());
}
}
/// <summary>
/// Get a DataField with the specified name.
/// </summary>
/// <param name='dataFields'>The WebDataField list.</param>
/// <param name='fieldName'>Name of field to get.</param>
/// <param name='create'>If true, DataField is created if it was not found.</param>
/// <param name='dataType'>Data type of the field. This parameter is only used if a field is created.</param>
/// <exception cref="ArgumentException">Thrown if no field was found.</exception>
private static WebDataField GetDataField(this List <WebDataField> dataFields,
String fieldName,
Boolean create,
WebDataType dataType)
{
if (dataFields.IsNotEmpty())
{
foreach (WebDataField dataField in dataFields)
{
if (dataField.Name == fieldName)
{
return(dataField);
}
}
}
if (create)
{
WebDataField dataField;
dataField = new WebDataField();
dataField.Name = fieldName;
dataField.Type = dataType;
dataFields.Add(dataField);
return(dataField);
}
else
{
// No field with specified name.
throw new ArgumentException("No data field with name " + fieldName + "!");
}
}
/// <summary>
/// Check if the WebDataField is of the expected type.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <param name='type'>Expected data type.</param>
private static void CheckDataType(this WebDataField dataField,
WebDataType type)
{
if (dataField.Type != type)
{
throw new ArgumentException("Wrong data type in WebDataField " + dataField.Name + ". " +
"Expected data type = " + type +
". Actual data type = " + dataField.Type + ".");
}
}
/// <summary>
/// Load all unread columns as WebDataFields into this WebData.
/// </summary>
/// <param name='data'>Data object.</param>
/// <param name='dataReader'>An open DataReader.</param>
public static void LoadData(this WebData data, DataReader dataReader)
{
WebDataField dataField;
if (dataReader.NextUnreadColumn())
{
data.DataFields = new List <WebDataField>();
do
{
dataField = new WebDataField();
dataField.LoadData(dataReader);
data.DataFields.Add(dataField);
}while (dataReader.NextUnreadColumn());
}
}
/// <summary>
/// Get an Int64 value from the data field.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <returns>An Int64 value</returns>
public static Int64 GetInt64(this WebDataField dataField)
{
dataField.CheckDataType(WebDataType.Int64);
return(dataField.Value.WebParseInt64());
}
/// <summary>
/// Get a Double value from the data field.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <returns>An Double value</returns>
public static Double GetFloat64(this WebDataField dataField)
{
dataField.CheckDataType(WebDataType.Float64);
return(dataField.Value.WebParseDouble());
}
/// <summary>
/// Get a DateTime value from the data field.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <returns>An DateTime value</returns>
public static DateTime GetDateTime(this WebDataField dataField)
{
dataField.CheckDataType(WebDataType.DateTime);
return(dataField.Value.WebParseDateTime());
}
/// <summary>
/// Get a Boolean value from the data field.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <returns>An Boolean value</returns>
public static Boolean GetBoolean(this WebDataField dataField)
{
dataField.CheckDataType(WebDataType.Boolean);
return(dataField.Value.WebParseBoolean());
}
/// <summary>
/// Check that data is valid.
/// </summary>
/// <param name='dataField'>Data field object.</param>
public static void CheckData(this WebDataField dataField)
{
dataField.Name = dataField.Name.CheckInjection();
dataField.Unit = dataField.Unit.CheckInjection();
dataField.Value = dataField.Value.CheckInjection();
}
/// <summary>
/// Load data into WebDataField.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <param name='dataReader'>An open data reader.</param>
public static void LoadData(this WebDataField dataField,
DataReader dataReader)
{
String type;
dataField.Name = dataReader.GetUnreadColumnName();
dataField.Value = null;
type = dataReader.GetUnreadColumnType().ToString();
switch (type)
{
case "System.Boolean":
dataField.Type = WebDataType.Boolean;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetBoolean(dataField.Name).WebToString();
}
break;
case "System.DateTime":
dataField.Type = WebDataType.DateTime;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetDateTime(dataField.Name).WebToString();
}
break;
case "System.Double":
case "System.Single":
dataField.Type = WebDataType.Float64;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetDouble(dataField.Name).WebToString();
}
break;
case "System.Byte":
case "System.SByte":
case "System.Int16":
case "System.UInt16":
dataField.Type = WebDataType.Int32;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetInt16(dataField.Name).WebToString();
}
break;
case "System.Int32":
case "System.UInt32":
dataField.Type = WebDataType.Int32;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetInt32(dataField.Name).WebToString();
}
break;
case "System.Int64":
case "System.UInt64":
dataField.Type = WebDataType.Int64;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetInt64(dataField.Name).WebToString();
}
break;
default:
dataField.Type = WebDataType.String;
if (dataReader.IsNotDbNull(dataField.Name))
{
dataField.Value = dataReader.GetString(dataField.Name);
}
break;
}
}
/// <summary>
/// Get an String value from the data field with the specified name.
/// </summary>
/// <param name='dataField'>Data field object.</param>
/// <returns>An String value</returns>
public static String GetString(this WebDataField dataField)
{
dataField.CheckDataType(WebDataType.String);
return(dataField.Value);
}
