本文整理汇总了C#中System.Data.SqlClient.SqlDataReader.GetFloat方法的典型用法代码示例。如果您正苦于以下问题：C# SqlDataReader.GetFloat方法的具体用法？C# SqlDataReader.GetFloat怎么用？C# SqlDataReader.GetFloat使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.SqlClient.SqlDataReader的用法示例。
在下文中一共展示了SqlDataReader.GetFloat方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetFloat
public float GetFloat(SqlDataReader row, string field)
{
try
{
var i = GetField(row, field);
if (row.IsDBNull(i)) return 0f;
return row.GetFloat(i);
}
catch (Exception ex)
{
throw new Exception("BindingError: " + field, ex);
}
}示例2: PopulateEntity
protected static void PopulateEntity(SqlDataReader reader, ServerEntity entity, Dictionary<string, PropertyInfo> propMap)
{
for (int i = 0; i < reader.FieldCount; i++)
{
String columnName = reader.GetName(i);
// Special case for when we select a range of values with an EntityBroker, just ignore
if (columnName.Equals("RowNum"))
continue;
if (columnName.Equals("GUID"))
{
Guid uid = reader.GetGuid(i);
entity.SetKey(new ServerEntityKey(entity.Name, uid));
continue;
}
if (columnName.Equals(entity.Name) && columnName.Contains("Enum"))
columnName = "Enum";
PropertyInfo prop;
if (!propMap.TryGetValue(columnName, out prop))
throw new EntityNotFoundException("Unable to match column to property: " + columnName, null);
if (columnName.Contains("GUID"))
columnName = columnName.Replace("GUID", "Key");
if (reader.IsDBNull(i))
{
prop.SetValue(entity, null, null);
continue;
}
Type propType = prop.PropertyType;
if (propType == typeof(String))
prop.SetValue(entity, reader.GetString(i), null);
else if (propType == typeof(ServerEntityKey))
{
Guid uid = reader.GetGuid(i);
prop.SetValue(entity, new ServerEntityKey(columnName.Replace("Key", String.Empty), uid), null);
}
else if (propType == typeof(DateTime))
prop.SetValue(entity, reader.GetDateTime(i), null);
else if (propType == typeof(DateTime?))
{
if (reader.IsDBNull(i))
{
prop.SetValue(entity, null, null);
}
else
{
prop.SetValue(entity, reader.GetDateTime(i), null);
}
}
else if (propType == typeof(bool))
prop.SetValue(entity, reader.GetBoolean(i), null);
else if (propType == typeof(Int32))
prop.SetValue(entity, reader.GetInt32(i), null);
else if (propType == typeof(Int16))
prop.SetValue(entity, reader.GetInt16(i), null);
else if (propType == typeof(double))
prop.SetValue(entity, reader.GetDouble(i), null);
else if (propType == typeof(Decimal))
prop.SetValue(entity, reader.GetDecimal(i), null);
else if (propType == typeof(float))
prop.SetValue(entity, reader.GetFloat(i), null);
else if (propType == typeof(XmlDocument))
{
SqlXml xml = reader.GetSqlXml(i);
if (xml!=null && !xml.IsNull)
{
XmlReader xmlReader = xml.CreateReader();
if (xmlReader != null)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xmlReader);
prop.SetValue(entity, xmlDoc, null);
}
else
prop.SetValue(entity, null, null);
}
else
{
prop.SetValue(entity, null, null);
}
}
else if (typeof(ServerEnum).IsAssignableFrom(propType))
{
short enumVal = reader.GetInt16(i);
ConstructorInfo construct = prop.PropertyType.GetConstructor(new Type[0]);
ServerEnum val = (ServerEnum)construct.Invoke(null);
val.SetEnum(enumVal);
prop.SetValue(entity, val, null);
}
else
throw new EntityNotFoundException("Unsupported property type: " + propType, null);
}
}示例3: FillCompatibleITypedSettersFromReader
// Copy multiple fields from reader to ITypedSettersV3
// Assumes caller enforces that reader and setter metadata are compatible
internal static void FillCompatibleITypedSettersFromReader( SmiEventSink_Default sink, ITypedSettersV3 setters, SmiMetaData[] metaData, SqlDataReader reader ) {
for ( int i = 0; i < metaData.Length; i++ ) {
if ( reader.IsDBNull(i) ) {
ValueUtilsSmi.SetDBNull_Unchecked( sink, setters, i );
}
else {
switch ( metaData[i].SqlDbType ) {
case SqlDbType.BigInt:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Int64 ) );
ValueUtilsSmi.SetInt64_Unchecked( sink, setters, i, reader.GetInt64(i) );
break;
case SqlDbType.Binary:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlBytes ) );
ValueUtilsSmi.SetSqlBytes_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0 );
break;
case SqlDbType.Bit:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Boolean ) );
SetBoolean_Unchecked( sink, setters, i, reader.GetBoolean(i) );
break;
case SqlDbType.Char:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlChars ) );
SetSqlChars_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlChars(i), 0 );
break;
case SqlDbType.DateTime:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.DateTime ) );
SetDateTime_Checked( sink, setters, i, metaData[i], reader.GetDateTime(i) );
break;
case SqlDbType.Decimal:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlDecimal ) );
SetSqlDecimal_Unchecked( sink, setters, i, reader.GetSqlDecimal(i) );
break;
case SqlDbType.Float:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Double ) );
SetDouble_Unchecked( sink, setters, i, reader.GetDouble(i) );
break;
case SqlDbType.Image:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlBytes ) );
SetSqlBytes_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0 );
break;
case SqlDbType.Int:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Int32 ) );
SetInt32_Unchecked( sink, setters, i, reader.GetInt32(i) );
break;
case SqlDbType.Money:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlMoney ) );
SetSqlMoney_Unchecked( sink, setters, i, metaData[i], reader.GetSqlMoney(i) );
break;
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlChars ) );
SetSqlChars_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlChars(i), 0 );
break;
case SqlDbType.Real:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Single ) );
SetSingle_Unchecked( sink, setters, i, reader.GetFloat(i) );
break;
case SqlDbType.UniqueIdentifier:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Guid ) );
SetGuid_Unchecked( sink, setters, i, reader.GetGuid(i) );
break;
case SqlDbType.SmallDateTime:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.DateTime ) );
SetDateTime_Checked( sink, setters, i, metaData[i], reader.GetDateTime(i) );
break;
case SqlDbType.SmallInt:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Int16 ) );
SetInt16_Unchecked( sink, setters, i, reader.GetInt16(i) );
break;
case SqlDbType.SmallMoney:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlMoney ) );
SetSqlMoney_Checked( sink, setters, i, metaData[i], reader.GetSqlMoney(i) );
break;
case SqlDbType.Text:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlChars ) );
SetSqlChars_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlChars(i), 0 );
break;
case SqlDbType.Timestamp:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlBytes ) );
SetSqlBytes_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0 );
break;
case SqlDbType.TinyInt:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.Byte ) );
SetByte_Unchecked( sink, setters, i, reader.GetByte(i) );
break;
case SqlDbType.VarBinary:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlBytes ) );
SetSqlBytes_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0 );
break;
case SqlDbType.VarChar:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.String ) );
SetSqlChars_LengthChecked( sink, setters, i, metaData[i], reader.GetSqlChars(i), 0 );
break;
case SqlDbType.Xml:
Debug.Assert( CanAccessSetterDirectly( metaData[i], ExtendedClrTypeCode.SqlXml ) );
SetSqlXml_Unchecked( sink, setters, i, reader.GetSqlXml(i) );
break;
case SqlDbType.Variant:
//.........这里部分代码省略.........
示例4: CrearPublicacion
private PublicacionEntity CrearPublicacion(SqlDataReader cursor)
{
PublicacionEntity publicacion = new PublicacionEntity();
publicacion.Id_publicacion = cursor.GetInt32(cursor.GetOrdinal("Id_publicacion"));
publicacion.Id_usr = cursor.GetInt32(cursor.GetOrdinal("Id_usr"));
publicacion.Titulo = cursor.GetString(cursor.GetOrdinal("Titulo"));
publicacion.Descripcion = cursor.GetString(cursor.GetOrdinal("Descripcion"));
publicacion.PrecioD = cursor.GetFloat(cursor.GetOrdinal("PrecioD"));
publicacion.PrecioS = cursor.GetFloat(cursor.GetOrdinal("PrecioS"));
publicacion.PecioM = cursor.GetFloat(cursor.GetOrdinal("PecioM"));
publicacion.FechaDesde = cursor.GetString(cursor.GetOrdinal("FechaDesde"));
publicacion.FechaHasta = cursor.GetString(cursor.GetOrdinal("FechaHasta"));
//publicacion.FechaHasta = cursor.GetDateTime(cursor.GetOrdinal("FechaHasta"));
publicacion.Alquilado = cursor.GetBoolean(cursor.GetOrdinal("Alquilado"));
publicacion.Suspendido = cursor.GetBoolean(cursor.GetOrdinal("Suspendido"));
publicacion.Id_publicacion = cursor.GetInt32(cursor.GetOrdinal("Id_cat_lvl3"));
return publicacion;
}示例5: GetDeal
private static Deal GetDeal(SqlDataReader reader)
{
Deal deal = new Deal
{
Title = reader.GetString(reader.GetOrdinal("Title")).Trim(),
DealID = reader.GetInt32(reader.GetOrdinal("DealId")),
UserName = reader.GetString(reader.GetOrdinal("Username")).Trim(),
Description = reader.GetString(reader.GetOrdinal("Description")).Trim(),
Retailer = reader.GetString(reader.GetOrdinal("Retailer")).Trim(),
Price = Math.Round(reader.GetFloat(reader.GetOrdinal("Price")), 2),
Url = reader.GetString(reader.GetOrdinal("Url")).Trim(),
ImageUrl = reader.GetString(reader.GetOrdinal("ImageUrl")).Trim(),
Date = reader.GetDateTime(reader.GetOrdinal("Date")),
Active = reader.GetBoolean(reader.GetOrdinal("Active"))
};
return deal;
}示例6: FillCompatibleITypedSettersFromReader
internal static void FillCompatibleITypedSettersFromReader(SmiEventSink_Default sink, ITypedSettersV3 setters, SmiMetaData[] metaData, SqlDataReader reader)
{
for (int i = 0; i < metaData.Length; i++)
{
if (reader.IsDBNull(i))
{
SetDBNull_Unchecked(sink, setters, i);
continue;
}
switch (metaData[i].SqlDbType)
{
case SqlDbType.BigInt:
{
SetInt64_Unchecked(sink, setters, i, reader.GetInt64(i));
continue;
}
case SqlDbType.Binary:
{
SetSqlBytes_LengthChecked(sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0);
continue;
}
case SqlDbType.Bit:
{
SetBoolean_Unchecked(sink, setters, i, reader.GetBoolean(i));
continue;
}
case SqlDbType.Char:
{
SetSqlChars_LengthChecked(sink, setters, i, metaData[i], reader.GetSqlChars(i), 0);
continue;
}
case SqlDbType.DateTime:
{
SetDateTime_Checked(sink, setters, i, metaData[i], reader.GetDateTime(i));
continue;
}
case SqlDbType.Decimal:
{
SetSqlDecimal_Unchecked(sink, setters, i, reader.GetSqlDecimal(i));
continue;
}
case SqlDbType.Float:
{
SetDouble_Unchecked(sink, setters, i, reader.GetDouble(i));
continue;
}
case SqlDbType.Image:
{
SetSqlBytes_LengthChecked(sink, setters, i, metaData[i], reader.GetSqlBytes(i), 0);
continue;
}
case SqlDbType.Int:
{
SetInt32_Unchecked(sink, setters, i, reader.GetInt32(i));
continue;
}
case SqlDbType.Money:
{
SetSqlMoney_Unchecked(sink, setters, i, metaData[i], reader.GetSqlMoney(i));
continue;
}
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
{
SetSqlChars_LengthChecked(sink, setters, i, metaData[i], reader.GetSqlChars(i), 0);
continue;
}
case SqlDbType.Real:
{
SetSingle_Unchecked(sink, setters, i, reader.GetFloat(i));
continue;
}
case SqlDbType.UniqueIdentifier:
{
SetGuid_Unchecked(sink, setters, i, reader.GetGuid(i));
continue;
}
case SqlDbType.SmallDateTime:
{
SetDateTime_Checked(sink, setters, i, metaData[i], reader.GetDateTime(i));
continue;
}
case SqlDbType.SmallInt:
{
SetInt16_Unchecked(sink, setters, i, reader.GetInt16(i));
continue;
}
case SqlDbType.SmallMoney:
{
SetSqlMoney_Checked(sink, setters, i, metaData[i], reader.GetSqlMoney(i));
continue;
}
case SqlDbType.Text:
{
SetSqlChars_LengthChecked(sink, setters, i, metaData[i], reader.GetSqlChars(i), 0);
continue;
}
case SqlDbType.Timestamp:
{
//.........这里部分代码省略.........
示例7: getFieldValue
public static double getFieldValue(SqlDataReader dr, int ind, double def)
{
double val = def;
if (!dr.IsDBNull(ind))
{
switch (System.Type.GetTypeCode(dr.GetFieldType(ind)))
{
case System.TypeCode.Boolean:
val = (dr.GetBoolean(ind) ? 1.0 : 0.0);
break;
case System.TypeCode.Int16:
val = System.Convert.ToDouble(dr.GetInt16(ind));
break;
case System.TypeCode.Int32:
val = System.Convert.ToDouble(dr.GetInt32(ind));
break;
case System.TypeCode.Int64:
val = System.Convert.ToDouble(dr.GetInt64(ind));
break;
case System.TypeCode.Single:
val = System.Convert.ToDouble(dr.GetFloat(ind));
break;
case System.TypeCode.Double:
val = dr.GetDouble(ind);
break;
case System.TypeCode.Decimal:
val = System.Convert.ToDouble(dr.GetDecimal(ind));
break;
}
}
return val;
}示例8: GetFloatTest
public void GetFloatTest ()
{
cmd.CommandText = "select type_float,type_double,convert(real,null)";
cmd.CommandText += "from numeric_family where id=1";
reader = cmd.ExecuteReader ();
reader.Read ();
// Test for standard exceptions
GetMethodTests("Float");
// Test if data is returned correctly
Assert.AreEqual (numericRow["type_float"], reader.GetFloat(0),
"#2 DataValidation Failed");
// Test for standard exceptions
GetMethodTests("SqlSingle");
// Test if data is returned correctly
Assert.AreEqual (numericRow["type_float"], reader.GetSqlSingle(0).Value,
"#2 DataValidation Failed");
reader.Close ();
} 示例9: SqlReadyValue
static string SqlReadyValue(string sqlBuiltString, Column column, int columnIndex, SqlDataReader reader)
{
if (columnIndex > 0)
sqlBuiltString += ", ";
if (reader[columnIndex] == null || String.IsNullOrEmpty(reader[columnIndex].ToString()))
return sqlBuiltString += "NULL";
switch (column.DataType.SqlDataType)
{
case SqlDataType.Int:
sqlBuiltString += reader.GetInt32(columnIndex);
break;
case SqlDataType.SmallInt:
sqlBuiltString += reader.GetInt16(columnIndex);
break;
case SqlDataType.BigInt:
sqlBuiltString += reader.GetInt64(columnIndex);
break;
case SqlDataType.Float:
try
{
float floatNumber = reader.GetFloat(columnIndex);
sqlBuiltString += floatNumber.ToString(CultureInfo.InvariantCulture);
}
catch
{
double doubleNumber = reader.GetDouble(columnIndex);
sqlBuiltString += doubleNumber.ToString(CultureInfo.InvariantCulture);
}
break;
case SqlDataType.Decimal:
decimal decimalNumber = reader.GetDecimal(columnIndex);
sqlBuiltString += decimalNumber.ToString(CultureInfo.InvariantCulture);
break;
case SqlDataType.DateTime2:
case SqlDataType.DateTime:
var date = reader.GetDateTime(columnIndex);
sqlBuiltString += String.Format("TO_DATE('{0}', 'yyyy-mm-dd hh24:mi:ss')", date.ToString("yyyy-MM-dd HH:mm:ss"));
break;
case SqlDataType.Bit:
var bitData = reader.GetBoolean(columnIndex);
sqlBuiltString += bitData == true ? "1" : "0";
break;
case SqlDataType.NVarChar:
case SqlDataType.NVarCharMax:
case SqlDataType.VarChar:
sqlBuiltString += "'" + reader.GetString(columnIndex) + "'";
break;
case SqlDataType.UniqueIdentifier:
sqlBuiltString += "'" + reader.GetGuid(columnIndex).ToString() + "'";
break;
case SqlDataType.VarBinary:
case SqlDataType.VarBinaryMax:
sqlBuiltString += "NULL";
break;
}
return sqlBuiltString;
}