/// <summary>
/// Raises the <see cref="ColumnChanged" /> event.
/// </summary>
/// <param name="column">The <see cref="IllustrationColumn"/> which has raised the event.</param>
/// <param name="value">The changed value.</param>
public virtual void OnColumnChanged(IllustrationColumn column, object value)
{
if (!SuppressEntityEvents)
{
IllustrationEventHandler handler = ColumnChanged;
if (handler != null)
{
handler(this, new IllustrationEventArgs(column, value));
}
// warn the parent list that i have changed
OnEntityChanged();
}
}
/// <summary>
/// Raises the <see cref="ColumnChanging" /> event.
/// </summary>
/// <param name="column">The <see cref="IllustrationColumn"/> which has raised the event.</param>
/// <param name="value">The changed value.</param>
public virtual void OnColumnChanging(IllustrationColumn column, object value)
{
if (IsEntityTracked && EntityState != EntityState.Added && !EntityManager.TrackChangedEntities)
{
EntityManager.StopTracking(entityTrackingKey);
}
if (!SuppressEntityEvents)
{
IllustrationEventHandler handler = ColumnChanging;
if (handler != null)
{
handler(this, new IllustrationEventArgs(column, value));
}
}
}
/// <summary>
/// Determines whether the property value has changed from the original data.
/// </summary>
/// <param name="column">The column.</param>
/// <returns>
/// <c>true</c> if the property value has changed; otherwise, <c>false</c>.
/// </returns>
public bool IsPropertyChanged(IllustrationColumn column)
{
switch (column)
{
case IllustrationColumn.IllustrationId:
return(entityData.IllustrationId != _originalData.IllustrationId);
case IllustrationColumn.Diagram:
return(entityData.Diagram != _originalData.Diagram);
case IllustrationColumn.ModifiedDate:
return(entityData.ModifiedDate != _originalData.ModifiedDate);
default:
return(false);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="T:IllustrationComparer"/> class.
/// </summary>
/// <param name="column">The column to sort on.</param>
public IllustrationComparer(IllustrationColumn column)
{
this.whichComparison = column;
}
///<summary>
/// Initalizes a new Instance of the IllustrationEventArgs class.
///</summary>
public IllustrationEventArgs(IllustrationColumn column, object value)
{
this.column = column;
this.value = value;
}
///<summary>
/// Initalizes a new Instance of the IllustrationEventArgs class.
///</summary>
public IllustrationEventArgs(IllustrationColumn column)
{
this.column = column;
}
/// <summary>
/// Raises the <see cref="ColumnChanged" /> event.
/// </summary>
/// <param name="column">The <see cref="IllustrationColumn"/> which has raised the event.</param>
public virtual void OnColumnChanged(IllustrationColumn column)
{
OnColumnChanged(column, null);
return;
}