OverflowExceptionOverflowExceptionOverflowExceptionOverflowException Class

定義

``public ref class OverflowException : ArithmeticException``
``````[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class OverflowException : ArithmeticException``````
``````type OverflowException = class
inherit ArithmeticException``````
``````Public Class OverflowException
Inherits ArithmeticException``````

OverflowExceptionOverflowExceptionOverflowExceptionOverflowException

備註

• 算數運算會產生超出運算所傳回之資料類型範圍的結果。An arithmetic operation produces a result that is outside the range of the data type returned by the operation. 下列範例說明OverflowException的乘法運算所擲回的, 會超出Int32類型的範圍。The following example illustrates the OverflowException that is thrown by a multiplication operation that overflows the bounds of the Int32 type.

``````int value = 780000000;
checked {
try {
// Square the original value.
int square = value * value;
Console.WriteLine("{0} ^ 2 = {1}", value, square);
}
catch (OverflowException) {
double square = Math.Pow(value, 2);
Console.WriteLine("Exception: {0} > {1:E}.",
square, Int32.MaxValue);
} }
// The example displays the following output:
//       Exception: 6.084E+17 > 2.147484E+009.
``````
``````Dim value As Integer = 780000000
Try
' Square the original value.
Dim square As Integer = value * value
Console.WriteLine("{0} ^ 2 = {1}", value, square)
Catch e As OverflowException
Dim square As Double = Math.Pow(value, 2)
Console.WriteLine("Exception: {0} > {1:E}.", _
square, Int32.MaxValue)
End Try
' The example displays the following output:
'       Exception: 6.084E+17 > 2.147484E+009.
``````
• 轉換或轉換作業嘗試執行縮小轉換, 且源資料類型的值超出目標資料類型的範圍。A casting or conversion operation attempts to perform a narrowing conversion, and the value of the source data type is outside the range of the target data type. 下列範例說明OverflowException嘗試將不帶正負號的位元組值轉換成帶正負號的位元組值時, 所擲回的。The following example illustrates the OverflowException that is thrown by the attempt to convert a large unsigned byte value to a signed byte value.

``````byte value = 241;
checked {
try {
sbyte newValue = (sbyte) value;
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
value.GetType().Name, value,
newValue.GetType().Name, newValue);
}
catch (OverflowException) {
Console.WriteLine("Exception: {0} > {1}.", value, SByte.MaxValue);
} }
// The example displays the following output:
//       Exception: 241 > 127.
``````
``````Dim value As Byte = 241
Try
Dim newValue As SByte = (CSByte(value))
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
value.GetType().Name, value, _
newValue.GetType().Name, newValue)
Catch e As OverflowException
Console.WriteLine("Exception: {0} > {1}.", value, SByte.MaxValue)
End Try
' The example displays the following output:
'       Exception: 241 > 127.
``````

``````byte value = 241;
try {
sbyte newValue = (sbyte) value;
Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
value.GetType().Name, value,
newValue.GetType().Name, newValue);
}
catch (OverflowException) {
Console.WriteLine("Exception: {0} > {1}.", value, SByte.MaxValue);
}
// The example displays the following output:
//       Converted the Byte value 241 to the SByte value -15.
``````

• `add.ovf.`簽署的 <>`add.ovf.` <signed>

• `conv.ovf.`若要輸入 > <`conv.ovf.` <to type>

• `conv.ovf.`若要輸入 > <`.un``conv.ovf.` <to type> `.un`

• `mul.ovf.` <type>`mul.ovf.` <type>

• `sub.ovf.` <type>`sub.ovf.` <type>

• `newarr`

OverflowException使用 HRESULT COR_E_OVERFLOW, 其值為0x80131516。OverflowException uses the HRESULT COR_E_OVERFLOW, which has the value 0x80131516.

建構函式

 OverflowException() OverflowException() OverflowException() OverflowException() 初始化 OverflowException 類別的新執行個體。Initializes a new instance of the OverflowException class. OverflowException(SerializationInfo, StreamingContext) OverflowException(SerializationInfo, StreamingContext) OverflowException(SerializationInfo, StreamingContext) OverflowException(SerializationInfo, StreamingContext) 使用序列化資料，初始化 OverflowException 類別的新執行個體。Initializes a new instance of the OverflowException class with serialized data. OverflowException(String) OverflowException(String) OverflowException(String) OverflowException(String) 使用指定的錯誤訊息，初始化 OverflowException 類別的新執行個體。Initializes a new instance of the OverflowException class with a specified error message. OverflowException(String, Exception) OverflowException(String, Exception) OverflowException(String, Exception) OverflowException(String, Exception) 使用指定的錯誤訊息以及造成此例外狀況的內部例外狀況的參考，初始化 OverflowException 類別的新執行個體。Initializes a new instance of the OverflowException class with a specified error message and a reference to the inner exception that is the cause of this exception.

屬性

 Data Data Data Data 取得提供例外狀況之其他使用者定義相關資訊的索引鍵/值組集合。Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception) HelpLink HelpLink HelpLink HelpLink 取得或設定與這個例外狀況相關聯的說明檔連結。Gets or sets a link to the help file associated with this exception. (Inherited from Exception) HResult HResult HResult HResult 取得或設定 HRESULT，它是指派給特定例外狀況的編碼數值。Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception) InnerException InnerException InnerException InnerException 取得造成目前例外狀況的 Exception 執行個體。Gets the Exception instance that caused the current exception. (Inherited from Exception) Message Message Message Message 取得描述目前例外狀況的訊息。Gets a message that describes the current exception. (Inherited from Exception) Source Source Source Source 取得或設定造成錯誤的應用程式或物件的名稱。Gets or sets the name of the application or the object that causes the error. (Inherited from Exception) StackTrace StackTrace StackTrace StackTrace 取得呼叫堆疊上即時運算框架的字串表示。Gets a string representation of the immediate frames on the call stack. (Inherited from Exception) TargetSite TargetSite TargetSite TargetSite 取得擲回目前例外狀況的方法。Gets the method that throws the current exception. (Inherited from Exception)

方法

 Equals(Object) Equals(Object) Equals(Object) Equals(Object) 判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object. (Inherited from Object) GetBaseException() GetBaseException() GetBaseException() GetBaseException() 在衍生類別中覆寫時，傳回一或多個後續的例外狀況的根本原因 Exception。When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception) GetHashCode() GetHashCode() GetHashCode() GetHashCode() 做為預設雜湊函式。Serves as the default hash function. (Inherited from Object) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) 在衍生類別中覆寫時，使用例外狀況的資訊設定 SerializationInfo。When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception) GetType() GetType() GetType() GetType() 取得目前執行個體的執行階段類型。Gets the runtime type of the current instance. (Inherited from Exception) MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone() 建立目前 Object 的淺層複本 (Shallow Copy)。Creates a shallow copy of the current Object. (Inherited from Object) ToString() ToString() ToString() ToString() 建立並傳回目前例外狀況的字串表示。Creates and returns a string representation of the current exception. (Inherited from Exception)

事件

 SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState 當例外狀況序列化，以建立包含例外狀況相關序列化資料的例外狀況狀態物件時，就會發生此事件。Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception)