/// <summary>
/// Creates a change state that reflects the move of some rows (in all columns).
/// </summary>
/// <param name="numberOfColumns">The number of columns in the table.</param>
/// <param name="firstRowNumber">The first row number that was affected.</param>
/// <param name="maxRowNumber">One more than the last affected row number.</param>
/// <returns>The change state that reflects the move.</returns>
public static DataColumnCollectionChangedEventArgs CreateRowMoveArgs(int numberOfColumns, int firstRowNumber, int maxRowNumber)
{
var args = new DataColumnCollectionChangedEventArgs(0, firstRowNumber, maxRowNumber, false)
{
_maxColChanged = numberOfColumns
};
return(args);
}
/// <summary>
/// Creates a change state that reflects the move of some columns.
/// </summary>
/// <param name="firstColumnNumber">The first column number that was removed.</param>
/// <param name="maxColumnNumber">One more than the last affected column.</param>
/// <returns>The change state that reflects the move.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnMoveArgs(int firstColumnNumber, int maxColumnNumber)
{
var args = new DataColumnCollectionChangedEventArgs(firstColumnNumber, 0, 0, false)
{
_maxColChanged = maxColumnNumber
};
return(args);
}
/// <summary>
/// Creates a change state that reflects the removal of some columns.
/// </summary>
/// <param name="firstColumnNumber">The first column number that was removed.</param>
/// <param name="originalNumberOfColumns">The number of columns in the collection before the removal.</param>
/// <param name="maxRowCountOfRemovedColumns">The maximum row count of the removed columns.</param>
/// <returns>The change state that reflects the removal.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnRemoveArgs(int firstColumnNumber, int originalNumberOfColumns, int maxRowCountOfRemovedColumns)
{
var args = new DataColumnCollectionChangedEventArgs(firstColumnNumber, 0, maxRowCountOfRemovedColumns, true);
if (originalNumberOfColumns > args._maxColChanged)
{
args._maxColChanged = originalNumberOfColumns;
}
return(args);
}
/// <summary>
/// Accumulate the change state by adding another change state.
/// </summary>
/// <param name="args">The other change state to be added.</param>
public void Accumulate(DataColumnCollectionChangedEventArgs args)
{
if (args._minColChanged < this._minColChanged)
this._minColChanged = args._minColChanged;
if (args._maxColChanged > this._maxColChanged)
this._maxColChanged = args._maxColChanged;
if (args._minRowChanged < this._minRowChanged)
this._minRowChanged = args._minRowChanged;
if (args.MaxRowChanged > this._maxRowChanged)
this._maxRowChanged = args._maxRowChanged;
_hasRowCountDecreased |= args._hasRowCountDecreased;
}
/// <summary>
/// Accumulate the change state by adding another change state.
/// </summary>
/// <param name="args">The other change state to be added.</param>
public void Accumulate(DataColumnCollectionChangedEventArgs args)
{
if (args._minColChanged < _minColChanged)
{
_minColChanged = args._minColChanged;
}
if (args._maxColChanged > _maxColChanged)
{
_maxColChanged = args._maxColChanged;
}
if (args._minRowChanged < _minRowChanged)
{
_minRowChanged = args._minRowChanged;
}
if (args.MaxRowChanged > _maxRowChanged)
{
_maxRowChanged = args._maxRowChanged;
}
_hasRowCountDecreased |= args._hasRowCountDecreased;
}
/// <summary>
/// Create the change state that reflects the replace of one column by another (or copying data).
/// </summary>
/// <param name="columnIndex">The index of the column to replace.</param>
/// <param name="oldRowCount">The row count of the old (replaced) column.</param>
/// <param name="newRowCount">The row count of the new column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnCopyOrReplaceArgs(int columnIndex, int oldRowCount, int newRowCount)
{
var args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, Math.Max(oldRowCount, newRowCount), newRowCount < oldRowCount);
return(args);
}
/// <summary>
/// Create the change state that reflects the renaming of one column.
/// </summary>
/// <param name="columnIndex">The index of the renamed column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnRenameArgs(int columnIndex)
{
var args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, 0, false);
return(args);
}
/// <summary>
/// Create the change state that reflects the addition of one column.
/// </summary>
/// <param name="columnIndex">The index of the added column.</param>
/// <param name="rowCountOfAddedColumn">The row count of the added column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnAddArgs(int columnIndex, int rowCountOfAddedColumn)
{
var args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, rowCountOfAddedColumn, false);
return(args);
}
/// <summary>
/// Create the change state that reflects the replace of one column by another (or copying data).
/// </summary>
/// <param name="columnIndex">The index of the column to replace.</param>
/// <param name="oldRowCount">The row count of the old (replaced) column.</param>
/// <param name="newRowCount">The row count of the new column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnCopyOrReplaceArgs(int columnIndex, int oldRowCount, int newRowCount)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, Math.Max(oldRowCount, newRowCount), newRowCount < oldRowCount);
return args;
}
/// <summary>
/// Create the change state that reflects the renaming of one column.
/// </summary>
/// <param name="columnIndex">The index of the renamed column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnRenameArgs(int columnIndex)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, 0, false);
return args;
}
/// <summary>
/// Create the change state that reflects the addition of one column.
/// </summary>
/// <param name="columnIndex">The index of the added column.</param>
/// <param name="rowCountOfAddedColumn">The row count of the added column.</param>
/// <returns>The newly created ChangeEventArgs for this case.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnAddArgs(int columnIndex, int rowCountOfAddedColumn)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(columnIndex, 0, rowCountOfAddedColumn, false);
return args;
}
/// <summary>
/// Creates a change state that reflects the move of some rows (in all columns).
/// </summary>
/// <param name="numberOfColumns">The number of columns in the table.</param>
/// <param name="firstRowNumber">The first row number that was affected.</param>
/// <param name="maxRowNumber">One more than the last affected row number.</param>
/// <returns>The change state that reflects the move.</returns>
public static DataColumnCollectionChangedEventArgs CreateRowMoveArgs(int numberOfColumns, int firstRowNumber, int maxRowNumber)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(0, firstRowNumber, maxRowNumber, false);
args._maxColChanged = numberOfColumns;
return args;
}
/// <summary>
/// Creates a change state that reflects the move of some columns.
/// </summary>
/// <param name="firstColumnNumber">The first column number that was removed.</param>
/// <param name="maxColumnNumber">One more than the last affected column.</param>
/// <returns>The change state that reflects the move.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnMoveArgs(int firstColumnNumber, int maxColumnNumber)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(firstColumnNumber, 0, 0, false);
args._maxColChanged = maxColumnNumber;
return args;
}
/// <summary>
/// Creates a change state that reflects the removal of some columns.
/// </summary>
/// <param name="firstColumnNumber">The first column number that was removed.</param>
/// <param name="originalNumberOfColumns">The number of columns in the collection before the removal.</param>
/// <param name="maxRowCountOfRemovedColumns">The maximum row count of the removed columns.</param>
/// <returns>The change state that reflects the removal.</returns>
public static DataColumnCollectionChangedEventArgs CreateColumnRemoveArgs(int firstColumnNumber, int originalNumberOfColumns, int maxRowCountOfRemovedColumns)
{
DataColumnCollectionChangedEventArgs args = new DataColumnCollectionChangedEventArgs(firstColumnNumber, 0, maxRowCountOfRemovedColumns, true);
if (originalNumberOfColumns > args._maxColChanged)
args._maxColChanged = originalNumberOfColumns;
return args;
}
