public override bool Equals(DataView dv)
{
RelatedView other = dv as RelatedView;
if (other == null)
{
return(false);
}
if (!base.Equals(dv))
{
return(false);
}
if (_filterValues != null)
{
return(CompareArray(_childKey.ColumnsReference, other._childKey.ColumnsReference) && CompareArray(_filterValues, other._filterValues));
}
else
{
if (other._filterValues != null)
{
return(false);
}
return(CompareArray(_childKey.ColumnsReference, other._childKey.ColumnsReference) &&
CompareArray(_parentKey.Value.ColumnsReference, _parentKey.Value.ColumnsReference) &&
_parentRowView.Equals(other._parentRowView));
}
}
public System.Data.DataView CreateChildView(DataRelation relation)
{
if ((relation == null) || (relation.ParentKey.Table != this.DataView.Table))
{
throw ExceptionBuilder.CreateChildView();
}
int record = this.GetRecord();
object[] keyValues = relation.ParentKey.GetKeyValues(record);
RelatedView view = new RelatedView(relation.ChildColumnsReference, keyValues);
view.SetIndex("", DataViewRowState.CurrentRows, null);
view.SetDataViewManager(this.DataView.DataViewManager);
return view;
}
public System.Data.DataView CreateChildView(DataRelation relation)
{
if ((relation == null) || (relation.ParentKey.Table != this.DataView.Table))
{
throw ExceptionBuilder.CreateChildView();
}
int record = this.GetRecord();
object[] keyValues = relation.ParentKey.GetKeyValues(record);
RelatedView view = new RelatedView(relation.ChildColumnsReference, keyValues);
view.SetIndex("", DataViewRowState.CurrentRows, null);
view.SetDataViewManager(this.DataView.DataViewManager);
return(view);
}
/// <summary>
/// Returns a <see cref="System.Data.DataView"/>
/// for the child <see cref="System.Data.DataTable"/>
/// with the specified <see cref="System.Data.DataRelation"/>.
/// </summary>
/// <param name="relation">Specified <see cref="System.Data.DataRelation"/>.</param>
/// <exception cref="ArgumentException">null or mismatch between <paramref name="relation"/> and <see cref="System.Data.DataView.get_Table"/>.</exception>
public DataView CreateChildView(DataRelation relation, bool followParent)
{
if (relation == null || relation.ParentKey.Table != DataView.Table)
{
throw ExceptionBuilder.CreateChildView();
}
RelatedView childView;
if (!followParent)
{
int record = GetRecord();
object[] values = relation.ParentKey.GetKeyValues(record);
childView = new RelatedView(relation.ChildColumnsReference, values);
}
else
{
childView = new RelatedView(this, relation.ParentKey, relation.ChildColumnsReference);
}
childView.SetIndex("", DataViewRowState.CurrentRows, null); // finish construction via RelatedView.SetIndex
childView.SetDataViewManager(DataView.DataViewManager);
return(childView);
}
/// <summary>
/// Returns a <see cref="System.Data.DataView"/>
/// for the child <see cref="System.Data.DataTable"/>
/// with the specified <see cref="System.Data.DataRelation"/>.
/// </summary>
/// <param name="relation">Specified <see cref="System.Data.DataRelation"/>.</param>
/// <exception cref="ArgumentException">null or mismatch between <paramref name="relation"/> and <see cref="System.Data.DataView.get_Table"/>.</exception>
public DataView CreateChildView(DataRelation relation, bool followParent) {
if (relation == null || relation.ParentKey.Table != DataView.Table) {
throw ExceptionBuilder.CreateChildView();
}
RelatedView childView;
if (!followParent) {
int record = GetRecord();
object[] values = relation.ParentKey.GetKeyValues(record);
childView = new RelatedView(relation.ChildColumnsReference, values);
}
else {
childView = new RelatedView(this, relation.ParentKey, relation.ChildColumnsReference);
}
childView.SetIndex("", DataViewRowState.CurrentRows, null); // finish construction via RelatedView.SetIndex
childView.SetDataViewManager(DataView.DataViewManager);
return childView;
}
