HashAlgorithm::TransformBlock Method (array<Byte>^, Int32, Int32, array<Byte>^, Int32)
Computes the hash value for the specified region of the input byte array and copies the specified region of the input byte array to the specified region of the output byte array.
Assembly: mscorlib (in mscorlib.dll)
public: virtual int TransformBlock( array<unsigned char>^ inputBuffer, int inputOffset, int inputCount, array<unsigned char>^ outputBuffer, int outputOffset ) sealed
Parameters
- inputBuffer
-
Type:
array<System::Byte>^
The input to compute the hash code for.
- inputOffset
-
Type:
System::Int32
The offset into the input byte array from which to begin using data.
- inputCount
-
Type:
System::Int32
The number of bytes in the input byte array to use as data.
- outputBuffer
-
Type:
array<System::Byte>^
A copy of the part of the input array used to compute the hash code.
- outputOffset
-
Type:
System::Int32
The offset into the output byte array from which to begin writing data.
| Exception | Condition |
|---|---|
| ArgumentException | inputCount uses an invalid value. -or- inputBuffer has an invalid length. |
| ArgumentNullException | inputBuffer is null. |
| ArgumentOutOfRangeException | inputOffset is out of range. This parameter requires a non-negative number. |
| ObjectDisposedException | The object has already been disposed. |
You must call the TransformBlock method before calling the TransformFinalBlock method. You must call both methods before you retrieve the final hash value.
To retrieve the final hash value after calling the TransformFinalBlock method, get the byte array contained within the Hash property.
Calling the TransformBlock method with different input and output arrays results in an IOException.
The following code examples use the TransformFinalBlock method with the TransformBlock method to hash a string.
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0