public override long GetChars(int ordinal, long dataIndex, char[] buffer, int bufferIndex, int length)
{
char[] tempBuffer;
tempBuffer = (char[])GetValue(ordinal);
if (buffer == null)
{
return(tempBuffer.Length);
}
var srcIndex = (int)dataIndex;
var charCount = Math.Min(tempBuffer.Length - srcIndex, length);
if (srcIndex < 0)
{
throw new ArgumentOutOfRangeException(
"bufferIndex", Strings.ADP_InvalidSourceBufferIndex(
buffer.Length.ToString(CultureInfo.InvariantCulture), ((long)bufferIndex).ToString(CultureInfo.InvariantCulture)));
}
else if ((bufferIndex < 0) ||
(bufferIndex > 0 && bufferIndex >= buffer.Length))
{
throw new ArgumentOutOfRangeException(
"bufferIndex", Strings.ADP_InvalidDestinationBufferIndex(
buffer.Length.ToString(CultureInfo.InvariantCulture), bufferIndex.ToString(CultureInfo.InvariantCulture)));
}
if (0 < charCount)
{
Array.Copy(tempBuffer, dataIndex, buffer, bufferIndex, charCount);
}
else if (length < 0)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidDataLength(((long)length).ToString(CultureInfo.InvariantCulture)));
}
else
{
charCount = 0;
}
return(charCount);
}
public override long GetBytes(
int i,
long dataIndex,
byte[] buffer,
int bufferIndex,
int length)
{
byte[] numArray = (byte[])this.GetValue(i);
if (buffer == null)
{
return((long)numArray.Length);
}
int num1 = (int)dataIndex;
int num2 = Math.Min(numArray.Length - num1, length);
if (num1 < 0)
{
throw new ArgumentOutOfRangeException(nameof(dataIndex), Strings.ADP_InvalidSourceBufferIndex((object)numArray.Length.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)((long)num1).ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (bufferIndex < 0 || bufferIndex > 0 && bufferIndex >= buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(bufferIndex), Strings.ADP_InvalidDestinationBufferIndex((object)buffer.Length.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)bufferIndex.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (0 < num2)
{
Array.Copy((Array)numArray, dataIndex, (Array)buffer, (long)bufferIndex, (long)num2);
}
else
{
if (length < 0)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidDataLength((object)((long)length).ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
num2 = 0;
}
return((long)num2);
}
public override long GetChars(int ordinal, long fieldOffset, char[] buffer, int bufferOffset, int length)
{
var cchars = 0;
int ndataIndex;
var data = (string)_values[ordinal];
cchars = data.Length;
// since arrays can't handle 64 bit values and this interface doesn't
// allow chunked access to data, a dataIndex outside the rang of Int32
// is invalid
if (fieldOffset > Int32.MaxValue)
{
throw new ArgumentOutOfRangeException(
"fieldOffset", Strings.ADP_InvalidSourceBufferIndex(
cchars.ToString(CultureInfo.InvariantCulture), fieldOffset.ToString(CultureInfo.InvariantCulture)));
}
ndataIndex = (int)fieldOffset;
// if no buffer is passed in, return the number of characters we have
if (null == buffer)
{
return(cchars);
}
try
{
if (ndataIndex < cchars)
{
// help the user out in the case where there's less data than requested
if ((ndataIndex + length) > cchars)
{
cchars = cchars - ndataIndex;
}
else
{
cchars = length;
}
}
data.CopyTo(ndataIndex, buffer, bufferOffset, cchars);
}
catch (Exception e)
{
if (e.IsCatchableExceptionType())
{
cchars = data.Length;
if (length < 0)
{
throw new IndexOutOfRangeException(
Strings.ADP_InvalidDataLength(((long)length).ToString(CultureInfo.InvariantCulture)));
}
// if bad buffer index, throw
if (bufferOffset < 0 ||
bufferOffset >= buffer.Length)
{
throw new ArgumentOutOfRangeException(
"bufferOffset", Strings.ADP_InvalidDestinationBufferIndex(
buffer.Length.ToString(CultureInfo.InvariantCulture), bufferOffset.ToString(CultureInfo.InvariantCulture)));
}
// if bad data index, throw
if (fieldOffset < 0 ||
fieldOffset >= cchars)
{
throw new ArgumentOutOfRangeException(
"fieldOffset", Strings.ADP_InvalidSourceBufferIndex(
cchars.ToString(CultureInfo.InvariantCulture), fieldOffset.ToString(CultureInfo.InvariantCulture)));
}
// if there is not enough room in the buffer for data
if (cchars + bufferOffset
> buffer.Length)
{
throw new IndexOutOfRangeException(
Strings.ADP_InvalidBufferSizeOrIndex(
cchars.ToString(CultureInfo.InvariantCulture), bufferOffset.ToString(CultureInfo.InvariantCulture)));
}
}
throw;
}
return(cchars);
}
public override long GetBytes(
int ordinal,
long fieldOffset,
byte[] buffer,
int bufferOffset,
int length)
{
byte[] numArray = (byte[])this._values[ordinal];
int length1 = numArray.Length;
if (fieldOffset > (long)int.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(fieldOffset), Strings.ADP_InvalidSourceBufferIndex((object)length1.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)fieldOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
int sourceIndex = (int)fieldOffset;
if (buffer == null)
{
return((long)length1);
}
try
{
if (sourceIndex < length1)
{
if (sourceIndex + length > length1)
{
length1 -= sourceIndex;
}
else
{
length1 = length;
}
}
Array.Copy((Array)numArray, sourceIndex, (Array)buffer, bufferOffset, length1);
}
catch (Exception ex)
{
if (ex.IsCatchableExceptionType())
{
int length2 = numArray.Length;
if (length < 0)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidDataLength((object)((long)length).ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (bufferOffset < 0 || bufferOffset >= buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(bufferOffset), Strings.ADP_InvalidDestinationBufferIndex((object)length.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)bufferOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (fieldOffset < 0L || fieldOffset >= (long)length2)
{
throw new ArgumentOutOfRangeException(nameof(fieldOffset), Strings.ADP_InvalidSourceBufferIndex((object)length.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)fieldOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (length2 + bufferOffset > buffer.Length)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidBufferSizeOrIndex((object)length2.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)bufferOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
}
throw;
}
return((long)length1);
}
public override long GetChars(
int ordinal,
long fieldOffset,
char[] buffer,
int bufferOffset,
int length)
{
string str = (string)this._values[ordinal];
int count = str.Length;
if (fieldOffset > (long)int.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(fieldOffset), Strings.ADP_InvalidSourceBufferIndex((object)count.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)fieldOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
int sourceIndex = (int)fieldOffset;
if (buffer == null)
{
return((long)count);
}
try
{
if (sourceIndex < count)
{
if (sourceIndex + length > count)
{
count -= sourceIndex;
}
else
{
count = length;
}
}
str.CopyTo(sourceIndex, buffer, bufferOffset, count);
}
catch (Exception ex)
{
if (ex.IsCatchableExceptionType())
{
int length1 = str.Length;
if (length < 0)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidDataLength((object)((long)length).ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (bufferOffset < 0 || bufferOffset >= buffer.Length)
{
throw new ArgumentOutOfRangeException(nameof(bufferOffset), Strings.ADP_InvalidDestinationBufferIndex((object)buffer.Length.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)bufferOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (fieldOffset < 0L || fieldOffset >= (long)length1)
{
throw new ArgumentOutOfRangeException(nameof(fieldOffset), Strings.ADP_InvalidSourceBufferIndex((object)length1.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)fieldOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
if (length1 + bufferOffset > buffer.Length)
{
throw new IndexOutOfRangeException(Strings.ADP_InvalidBufferSizeOrIndex((object)length1.ToString((IFormatProvider)CultureInfo.InvariantCulture), (object)bufferOffset.ToString((IFormatProvider)CultureInfo.InvariantCulture)));
}
}
throw;
}
return((long)count);
}