.NET (Core and Framework)

public struct Boolean : ...
{
  internal const int True = 1;
  internal const int False = 0;
  ...

Dim b As Boolean
Debug.Print(Len(b).ToString)

Dim var As Boolean = True
Console.WriteLine(Len(var).ToString)
Console.WriteLine(System.Runtime.InteropServices.Marshal.SizeOf(var).ToString)

2
4

With user-defined types and Object variables, the Len function returns the size as it will be written to the file by the FilePut function. If an Object contains a String, it will return the length of the string. If an Object contains any other type, it will return the size of the object as it will be written to the file by the FilePut function.

Although you can use the SizeOf[^] method, the value returned by this method is not always the same as the value returned by sizeof. Marshal.SizeOf returns the size after the type has been marshaled whereas sizeof returns the size as it has been allocated by the Common Language Runtime, including any padding.

M. J. Jaya Chitra wrote:

Can any one tell me what are all the prerequisites in order to create an office plug-in / add-in project through the VS 2005.

tamour wrote:

Please tell me a good solution to transfer file without using that much CPU

invictus3 wrote:

I have found some information that says that this method is bugged because using -1 as timeout (i.e. block forever) returns immediately. The problem is that this information is a bit old and I can not find any place saying it is fixed.

invictus3 wrote:

However, I have found some information that says that this method is bugged because using -1 as timeout

Driver={Microsoft Access Driver (*.mdb)}

Provider=Microsoft.Jet.OLEDB.4.0

// To the DataAdapter Add
adapter.RowUpdated += new OleDbRowUpdatedEventHandler(OnRowUpdateed);

// The event handler assuming "Id" is the name of the Identity column
private void OnRowUpdated(object sender, OleDbRowUpdatedEventArgs e)
{
    if (e.StatementType == StatementType.Insert)
    {
        using (OleDbCommand cmd = new OleDbCommand("SELECT @@IDENTITY", e.Command.Connection))
        {
            e.Row["Id"] = cmd.ExecuteScalar();
            e.Row.AcceptChanges();
        }
    }
}