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IBinarySerialize.Read Method

Generates a user-defined type (UDT) or user-defined aggregate from its binary form.

Namespace:  Microsoft.SqlServer.Server
Assembly:  System.Data (in System.Data.dll)

void Read(
	BinaryReader r
)

Parameters

r
Type: System.IO.BinaryReader
The BinaryReader stream from which the object is deserialized.

The Read method must reconstitute your object using the information written by the Write method.

The following example shows the implementation of the Read method of a UDT, which uses a BinaryReader to de-serialize a previously persisted UDT. This example assumes that the UDT has two data properties: StringValue and DoubleValue.


// The binary layout is as follows:
//    Bytes 0 - 19: string text, padded to the right with null characters
//    Bytes 20+: Double value

public void Read(System.IO.BinaryReader r)
{

    int maxStringSize = 20;
    char[] chars;
    int stringEnd;
    string stringValue;
    double doubleValue;

    // Read the characters from the binary stream.
    chars = r.ReadChars(maxStringSize);

    // Find the start of the null character padding.
    stringEnd = Array.IndexOf(chars, '\0');

    if (stringEnd == 0)
    {
        stringValue = null;
        return;
    }

    // Build the string from the array of characters.
    stringValue = new String(chars, 0, stringEnd);

    // Read the double value from the binary stream.
    doubleValue = r.ReadDouble();

    // Set the object's properties equal to the values.
    this.StringValue = stringValue;
    this.DoubleValue = doubleValue;
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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