internal void RegisterColumnName(string name, DataColumn column, DataTable table)
{
object obj2 = this.columnFromName[name];
if (obj2 != null)
{
if (!(obj2 is DataColumn))
{
throw ExceptionBuilder.CannotAddDuplicate2(name);
}
if (column != null)
{
throw ExceptionBuilder.CannotAddDuplicate(name);
}
throw ExceptionBuilder.CannotAddDuplicate3(name);
}
if ((table != null) && (base.NamesEqual(name, this.MakeName(this.defaultNameIndex), true, this.table.Locale) != 0))
{
do
{
this.defaultNameIndex++;
}while (this.Contains(this.MakeName(this.defaultNameIndex)));
}
if (column != null)
{
column._hashCode = this.table.GetSpecialHashCode(name);
this.columnFromName.Add(name, column);
}
else
{
this.columnFromName.Add(name, table);
}
}
/// <summary>
/// Registers this name as being used in the collection. Will throw an ArgumentException
/// if the name is already being used. Called by Add, All property, and Column.ColumnName property.
/// if the name is equivalent to the next default name to hand out, we increment our defaultNameIndex.
/// NOTE: To add a child table, pass column as null
/// </summary>
internal void RegisterColumnName(string name, DataColumn?column)
{
Debug.Assert(name != null);
try
{
_columnFromName.Add(name, column);
if (null != column)
{
column._hashCode = _table.GetSpecialHashCode(name);
}
}
catch (ArgumentException)
{
// Argument exception means that there is already an existing key
if (_columnFromName[name] != null)
{
if (column != null)
{
throw ExceptionBuilder.CannotAddDuplicate(name);
}
else
{
throw ExceptionBuilder.CannotAddDuplicate3(name);
}
}
throw ExceptionBuilder.CannotAddDuplicate2(name);
}
// If we're adding a child table, then update defaultNameIndex to avoid colisions between the child table and auto-generated column names
if ((column == null) && NamesEqual(name, MakeName(_defaultNameIndex), true, _table.Locale) != 0)
{
do
{
_defaultNameIndex++;
} while (Contains(MakeName(_defaultNameIndex)));
}
}
/// <include file='doc\DataColumnCollection.uex' path='docs/doc[@for="DataColumnCollection.RegisterName"]/*' />
/// <devdoc>
/// Registers this name as being used in the collection. Will throw an ArgumentException
/// if the name is already being used. Called by Add, All property, and Column.ColumnName property.
/// if the name is equivalent to the next default name to hand out, we increment our defaultNameIndex.
/// </devdoc>
internal void RegisterName(string name, Object obj)
{
Debug.Assert(name != null);
Debug.Assert(obj is DataTable || obj is DataColumn);
Object _exObject = columnFromName[name];
DataColumn _column = _exObject as DataColumn;
if (_column != null)
{
if (obj is DataColumn)
{
throw ExceptionBuilder.CannotAddDuplicate(name);
}
else
{
throw ExceptionBuilder.CannotAddDuplicate2(name);
}
}
if (_exObject != null)
{
throw ExceptionBuilder.CannotAddDuplicate3(name);
}
//we need to check wether the tableName is the same of the
//next generable columnName and update defaultNameIndex accordingly
if (obj is DataTable && NamesEqual(name, MakeName(defaultNameIndex), true, table.Locale) != 0)
{
do
{
defaultNameIndex++;
} while (!Contains(MakeName(defaultNameIndex)));
}
columnFromName.Add(name, obj);
}