本文整理汇总了C#中System.Data.Common.DbDataReader.GetFloat方法的典型用法代码示例。如果您正苦于以下问题：C# DbDataReader.GetFloat方法的具体用法？C# DbDataReader.GetFloat怎么用？C# DbDataReader.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.Common.DbDataReader的用法示例。
在下文中一共展示了DbDataReader.GetFloat方法的6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 static float? GetFloat(DbDataReader reader, int index)
{
if (reader.IsDBNull(index))
return null;
else
return reader.GetFloat(index);
}示例2: FillCompatibleSettersFromReader
// Copy multiple fields from reader to SmiTypedGetterSetter
// Supports V200 code path, without damaging backward compat for V100 code.
// Main differences are supporting DbDataReader, and for binary, character, decimal and Udt types.
// Assumes caller enforces that reader and setter metadata are compatible
internal static void FillCompatibleSettersFromReader(SmiEventSink_Default sink, SmiTypedGetterSetter setters, IList<SmiExtendedMetaData> metaData, DbDataReader reader) {
for (int i = 0; i < metaData.Count; 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));
SetInt64_Unchecked(sink, setters, i, reader.GetInt64(i));
break;
case SqlDbType.Binary:
Debug.Assert(CanAccessSetterDirectly(metaData[i], ExtendedClrTypeCode.ByteArray));
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 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.CharArray));
SetCharsOrString_FromReader(sink, setters, i, metaData[i], reader, 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: { // block to scope sqlReader local to avoid conflicts
Debug.Assert(CanAccessSetterDirectly(metaData[i], ExtendedClrTypeCode.SqlDecimal));
// Support full fidelity for SqlDataReader
SqlDataReader sqlReader = reader as SqlDataReader;
if (null != sqlReader) {
SetSqlDecimal_Unchecked(sink, setters, i, sqlReader.GetSqlDecimal(i));
}
else {
SetSqlDecimal_Unchecked(sink, setters, i, new SqlDecimal(reader.GetDecimal(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.ByteArray));
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 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_Checked(sink, setters, i, metaData[i], new SqlMoney(reader.GetDecimal(i)));
break;
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
Debug.Assert(CanAccessSetterDirectly(metaData[i], ExtendedClrTypeCode.CharArray));
SetCharsOrString_FromReader(sink, setters, i, metaData[i], reader, 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], new SqlMoney(reader.GetDecimal(i)));
break;
case SqlDbType.Text:
Debug.Assert(CanAccessSetterDirectly(metaData[i], ExtendedClrTypeCode.CharArray));
SetCharsOrString_FromReader(sink, setters, i, metaData[i], reader, 0);
break;
case SqlDbType.Timestamp:
Debug.Assert(CanAccessSetterDirectly(metaData[i], ExtendedClrTypeCode.ByteArray));
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 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.ByteArray));
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 0);
//.........这里部分代码省略.........
示例3: ReadInternal
protected override object ReadInternal(DbDataReader reader, int ordinal, SqlRandomTableColumn columnInfo, Type asType)
{
ValidateReadType(typeof(float), asType);
if (reader.IsDBNull(ordinal))
return DBNull.Value;
return reader.GetFloat(ordinal);
}示例4: FillCompatibleSettersFromReader
internal static void FillCompatibleSettersFromReader(SmiEventSink_Default sink, SmiTypedGetterSetter setters, IList<SmiExtendedMetaData> metaData, DbDataReader reader)
{
for (int i = 0; i < metaData.Count; i++)
{
object sqlValue;
DateTimeOffset dateTimeOffset;
TimeSpan timeSpan;
ExtendedClrTypeCode code;
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:
{
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 0);
continue;
}
case SqlDbType.Bit:
{
SetBoolean_Unchecked(sink, setters, i, reader.GetBoolean(i));
continue;
}
case SqlDbType.Char:
{
SetCharsOrString_FromReader(sink, setters, i, metaData[i], reader, 0);
continue;
}
case SqlDbType.DateTime:
{
SetDateTime_Checked(sink, setters, i, metaData[i], reader.GetDateTime(i));
continue;
}
case SqlDbType.Decimal:
{
SqlDataReader reader6 = reader as SqlDataReader;
if (reader6 == null)
{
break;
}
SetSqlDecimal_Unchecked(sink, setters, i, reader6.GetSqlDecimal(i));
continue;
}
case SqlDbType.Float:
{
SetDouble_Unchecked(sink, setters, i, reader.GetDouble(i));
continue;
}
case SqlDbType.Image:
{
SetBytes_FromReader(sink, setters, i, metaData[i], reader, 0);
continue;
}
case SqlDbType.Int:
{
SetInt32_Unchecked(sink, setters, i, reader.GetInt32(i));
continue;
}
case SqlDbType.Money:
{
SetSqlMoney_Checked(sink, setters, i, metaData[i], new SqlMoney(reader.GetDecimal(i)));
continue;
}
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
{
SetCharsOrString_FromReader(sink, setters, i, metaData[i], reader, 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], new SqlMoney(reader.GetDecimal(i)));
//.........这里部分代码省略.........
示例5: GetFloat
private static Single? GetFloat(DbDataReader reader, int index)
{
if (reader.IsDBNull(index))
return null;
else
return reader.GetFloat(index);
}示例6: ReadPrices
private List<ExaminationPrice> ReadPrices(DbDataReader reader)
{
List<ExaminationPrice> prices = new List<ExaminationPrice>();
while (reader.Read())
{
int id = reader.GetInt32(0);
int insurance = reader.GetInt32(1);
HealthInsuranceMapper him = HealthInsuranceMapper.GetInstance();
HealthInsurance hi = him.Find(insurance);
float price = reader.GetFloat(2);
ExaminationPrice e = new ExaminationPrice(hi, price);
e.Id = id;
prices.Add(e);
}
return prices;
}