/// <summary>
/// Get a row size
/// </summary>
public static long GetRowSizeFromDataRow(DmRow row)
{
bool isRowDeleted = false;
if (row.RowState == DmRowState.Deleted)
{
row.RejectChanges();
isRowDeleted = true;
}
long byteCount = 0;
object[] itemArray = row.ItemArray;
for (int i = 0; i < itemArray.Length; i++)
{
// Size for the value
object obj = itemArray[i];
Type objType = obj != null?obj.GetType() : null;
if (obj == null)
{
byteCount = byteCount + 5;
}
else if (obj is DBNull)
{
byteCount = byteCount + 5;
}
else if (objType == stringType)
{
byteCount = byteCount + Encoding.UTF8.GetByteCount((string)obj);
}
else if (objType == byteArrayType)
{
byteCount = byteCount + ((byte[])obj).Length;
}
else
{
byteCount = byteCount + GetSizeForType(obj.GetType());
}
// Size for the type
var typeofobject = row.Table.Columns[i].DataType;
var byteslengthtype = Encoding.UTF8.GetBytes(DmUtils.GetAssemblyQualifiedName(typeofobject)).Length;
byteCount += byteslengthtype;
// State
byteCount += 4L;
// Index
byteCount += 4L;
}
if (isRowDeleted)
{
row.Delete();
}
return(byteCount);
}
/// <summary>
/// Calculate an estimation of the dictionary values size
/// </summary>
public static long GetRowSizeFromDataRow(object[] itemArray)
{
long byteCount = 0;
foreach (var obj in itemArray)
{
var objType = obj?.GetType();
if (obj == null)
{
byteCount += 5;
}
else if (obj is DBNull)
{
byteCount += 5;
}
else if (objType == stringType)
{
byteCount += Encoding.UTF8.GetByteCount((string)obj);
}
else if (objType == byteArrayType)
{
byteCount += ((byte[])obj).Length;
}
else
{
byteCount += GetSizeForType(obj.GetType());
}
// Size for the type
if (objType != null)
{
byteCount += Encoding.UTF8.GetBytes(DmUtils.GetAssemblyQualifiedName(objType)).Length;
}
// State
byteCount += 4L;
// Index
byteCount += 4L;
}
return(byteCount);
}