public virtual bool Delete()
{
bool deleted = false;
RowAdapter d = new RowAdapter(this.fields, this.columns, this.TableName, this.Locator);
foreach (DataRow dataRow in dataTable.Rows)
{
if (dataRow.RowState == DataRowState.Deleted)
{
dataRow.RejectChanges();
d.UpdateColumnValue(dataRow);
if (DataRowChangedHandler != null)
{
d.RowChanged += DataRowChangedHandler;
}
if (ValueChangedHandler != null)
{
d.ValueChangedHandler = ValueChangedHandler;
}
deleted = d.Delete();
if (deleted)
{
dataRow.Delete();
}
}
}
dataTable.AcceptChanges();
return(deleted);
}
public bool saved; //RowChanged fired twice during Adding a record;
//true: after record saved
//false: before record saving, give a chance to deny saving
public RowChangedEventArgs(RowAdapter adapter, ObjectState state, bool saved)
{
this.adapter = adapter;
this.state = state;
this.confirmed = true;
this.saved = saved;
}
public bool saved; //RowChanged fired twice during Adding a record;
#endregion Fields
#region Constructors
//true: after record saved
//false: before record saving, give a chance to deny saving
public RowChangedEventArgs(RowAdapter adapter, ObjectState state, bool saved)
{
this.adapter = adapter;
this.state = state;
this.confirmed = true;
this.saved = saved;
}
public virtual bool SaveOnly()
{
bool saved = false;
RowAdapter d = GetPersistentRow();
foreach (DataRow dataRow in dataTable.Rows)
{
if (dataRow.RowState != DataRowState.Deleted)
{
d.UpdateColumnValue(dataRow);
if (DataRowChangedHandler != null)
{
d.RowChanged += DataRowChangedHandler;
}
if (ValueChangedHandler != null)
{
d.ValueChangedHandler = ValueChangedHandler;
}
if (dataRow.RowState != DataRowState.Unchanged)
{
saved = d.Save();
}
}
else
{
dataRow.RejectChanges();
d.UpdateColumnValue(dataRow);
if (DataRowChangedHandler != null)
{
d.RowChanged += DataRowChangedHandler;
}
if (ValueChangedHandler != null)
{
d.ValueChangedHandler = ValueChangedHandler;
}
d.Delete();
dataRow.Delete();
}
}
return(saved);
}
private void Apply(RowAdapter d)
{
foreach (PropertyInfo propertyInfo in this.columnProperties)
{
ColumnAttribute a = Reflex.GetColumnAttribute(propertyInfo);
if (a != null && d.Row.Table.Columns.Contains(a.ColumnNameSaved))
{
if (propertyInfo.GetValue(this, null) == null)
{
d.Row[a.ColumnNameSaved] = System.DBNull.Value;
}
else
{
d.Row[a.ColumnNameSaved] = propertyInfo.GetValue(this, null);
}
}
}
d.Fill();
}
public virtual bool Load()
{
RowAdapter d = GetPersistentRow();
foreach (DataRow dataRow in dataTable.Rows)
{
if (dataRow.RowState == DataRowState.Deleted)
{
continue;
}
d.UpdateColumnValue(dataRow);
d.Load();
foreach (ColumnAdapter column in columns)
{
dataRow[column.Field.Name] = d.Row[column.Field.Name];
}
}
dataTable.AcceptChanges();
return(true);
}
public void Add(RowAdapter row)
{
row.SetTransaction(this);
}
public virtual bool Delete()
{
bool deleted = false;
RowAdapter d = new RowAdapter(this.fields, this.columns, this.TableName, this.Locator);
foreach (DataRow dataRow in dataTable.Rows)
{
if (dataRow.RowState == DataRowState.Deleted)
{
dataRow.RejectChanges();
d.UpdateColumnValue(dataRow);
if (DataRowChangedHandler != null)
d.RowChanged += DataRowChangedHandler;
if (ValueChangedHandler != null)
d.ValueChangedHandler = ValueChangedHandler;
deleted = d.Delete();
if (deleted)
dataRow.Delete();
}
}
dataTable.AcceptChanges();
return deleted;
}
public virtual bool Save(Selector columnNames, RowChangedHandler rowHandler, ValueChangedHandler columnHandler)
{
if (dataTable == null || dataTable.Rows.Count == 0)
{
return(false);
}
//update this.dataTable
// this.AcceptChanges();
objectPermission = ObjectPermission.DenyUpdateObject;
RowAdapter d = this.NewSqlRow(columnNames);
d.RowChanged += RowChanged;
if (rowHandler != null)
{
d.RowChanged += rowHandler;
}
if (columnHandler != null)
{
d.ValueChangedHandler = columnHandler;
}
else
{
d.ValueChangedHandler = ValueChanged;
}
int count = 0;
foreach (DataRow dataRow in dataTable.Rows)
{
BeforeSave(dataRow);
if (dataRow.RowState != DataRowState.Deleted)
{
if (dataRow.RowState != DataRowState.Unchanged)
{
d.CopyFrom(dataRow);
d.Fill();
d.Save();
if (dataRow.RowState == DataRowState.Added) //in case of existing identity columns
{
d.CopyTo(dataRow);
UpdateObject(dataRow);
}
//slow version
//T t = this[dataRow];
//t.Save(d);
count++;
}
}
else
{
dataRow.RejectChanges();
d.CopyFrom(dataRow);
d.Fill();
d.Delete();
//slow version
//T t = this[dataRow];
//t.Delete();
dataRow.Delete();
}
AfterSave(dataRow);
}
dataTable.AcceptChanges();
objectPermission = ObjectPermission.AllowUpdateObject;
return(true);
}
public void Add(RowAdapter row)
{
row.SetTransaction(this);
}