/// <summary>
/// Raises the CellFilling event.
/// </summary>
/// <param name="e">A DataGridViewControllerCellEventArgs object.</param>
protected virtual void OnCellFilling(DataGridViewControllerCellEventArgs <T> e)
{
if (this.CellFilling != null)
{
this.CellFilling(this, e);
}
}
/// <summary>
/// The method used to handle the PropertyChanged event of a data object.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnObjectPropertyChanged(object sender, PropertyChangedEventArgs e)
{
T info = (T)sender;
string propertyName = e.PropertyName;
if (string.IsNullOrWhiteSpace(propertyName))
{
this.Update(info);
}
else
{
DataGridViewRow row = (from r in this.DataGridView.Rows.Cast <DataGridViewRow>()
where object.Equals(r.Tag, info)
select r).FirstOrDefault();
PropertyInfo property = (from p in this.m_properties
where p.Name.Equals(propertyName)
select p).FirstOrDefault();
if (row != null && property != null)
{
this.m_isFillingCell = true;
DataGridViewCell cell = row.Cells[propertyName];
DataGridViewControllerCellEventArgs <T> cellEvent = new DataGridViewControllerCellEventArgs <T>(cell, info, propertyName, property.GetValue(info, null));
this.OnCellFilling(cellEvent);
cell.Value = cellEvent.Value;
this.m_isFillingCell = false;
}
}
}
/// <summary>
/// Initialize a new instance of DataGridViewEditableController.
/// </summary>
/// <param name="dataGridView">A DataGridView.</param>
/// <param name="isAutomaticUpdateView">Whether automatic update this DataGridView when the underlying object have changed.</param>
/// <param name="isAutomaticUpdateDataSource">Whether automatic update data source when the value of cell has changed.</param>
/// <exception cref="System.ArgumentException"><paramref name="dataGridView"/> is null.</exception>
public DataGridViewEditableController(DataGridView dataGridView, bool isAutomaticUpdateView, bool isAutomaticUpdateDataSource)
: base(dataGridView, isAutomaticUpdateView)
{
this.DataGridView.ReadOnly = false;
if (this.IsAutomaticUpdateDataSource = isAutomaticUpdateDataSource)
{
this.DataGridView.CellValueChanged += delegate(object sender, DataGridViewCellEventArgs e) {
if (e.RowIndex < 0 || e.ColumnIndex < 0 || this.m_isFillingCell)
{
return;
}
DataGridViewRow row = this.DataGridView.Rows[e.RowIndex];
DataGridViewColumn column = this.DataGridView.Columns[e.ColumnIndex];
PropertyInfo property = (from p in this.m_properties
where p.Name.Equals(column.Name)
select p).FirstOrDefault();
if (row.Tag is T && property != null)
{
T info = (T)row.Tag;
DataGridViewCell cell = row.Cells[property.Name];
DataGridViewControllerCellEventArgs <T> cellEvent = new DataGridViewControllerCellEventArgs <T>(cell, info, property.Name, cell.Value);
this.OnCellPicking(cellEvent);
property.SetValue(info, cellEvent.Value, null);
}
};
}
}
/// <summary>
/// Initialize the associated object by the specified row.
/// </summary>
/// <param name="row">A DataGridViewRow.</param>
/// <returns>The associated object.</returns>
protected virtual T FromRow(DataGridViewRow row)
{
T info = (T)row.Tag;
DataGridViewCell cell = null;
DataGridViewCellCollection cells = row.Cells;
DataGridViewControllerCellEventArgs <T> e = null;
foreach (PropertyInfo property in this.m_properties)
{
if ((cell = cells[property.Name]).ReadOnly && !this.IsPickReadOnlyValue)
{
continue;
}
this.OnCellPicking(e = new DataGridViewControllerCellEventArgs <T>(cell, info, property.Name, cell.Value));
property.SetValue(info, e.Value, null);
}
return(info);
}
/// <summary>
/// Fill the specified row.
/// </summary>
/// <param name="info">The data.</param>
/// <param name="row">The row.</param>
protected void FillRow(T info, DataGridViewRow row)
{
DataGridViewCellCollection cells = row.Cells;
DataGridViewControllerCellEventArgs <T> e = null;
row.Tag = info;
this.OnPreFillRow(new DataGridViewControllerRowEventArgs <T>(row, info));
this.m_isFillingCell = true;
DataGridViewCell cell = null;
foreach (PropertyInfo property in this.m_properties)
{
this.OnCellFilling(e = new DataGridViewControllerCellEventArgs <T>(cell = cells[property.Name], info, property.Name, property.GetValue(info, null)));
cell.Value = e.Value;
}
this.m_isFillingCell = false;
this.OnPostFillRow(new DataGridViewControllerRowEventArgs <T>(row, info));
if (this.IsAutomaticUpdateView)
{
((INotifyPropertyChanged)info).PropertyChanged += new PropertyChangedEventHandler(this.OnObjectPropertyChanged);
}
}
