IsEmpty Property (MySqlBlob)
Gets a value indicating whether the
MySqlBlob is empty or not.
In this sample a
Null value is assigned to a MySqlBlob instance, then some properties are checked. If unchanged, this code produces the following output:
It is empty.
It is Null.
public void MySqlBlobNullTest()
{
MySqlBlob myBlob = new MySqlBlob();
myBlob = MySqlBlob.Null;
if (myBlob.CanRead)
{
Console.WriteLine("It can read.");
}
if (myBlob.CanWrite)
{
Console.WriteLine("It can write.");
}
if (myBlob.CanSeek)
{
Console.WriteLine("It can seek.");
}
if (myBlob.IsEmpty)
{
Console.WriteLine("It is empty.");
}
if (myBlob.IsNull)
{
Console.WriteLine("It is Null.");
}
}
Public Sub MySqlBlobNullTest()
Dim myBlob As MySqlBlob = New MySqlBlob
myBlob = MySqlBlob.Null
If myBlob.CanRead Then
Console.WriteLine("It can read.")
End If
If myBlob.CanWrite Then
Console.WriteLine("It can write.")
End If
If (myBlob.CanSeek) Then
Console.WriteLine("It can seek.")
End If
If myBlob.IsEmpty Then
Console.WriteLine("It is empty.")
End If
If myBlob.IsNull Then
Console.WriteLine("It is Null.")
End If
End Sub