/// <summary>
/// Make propertly content for columns that consist controls
/// </summary>
/// <param name="sender">DataGrid as object</param>
/// <param name="e">DataGridAutoGeneratingColumnEventArgs</param>
protected void OnAutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
ExtendedDataColumn column = GetColumn(sender, e.PropertyName);
e.Column.Header = column.Caption;
switch (column.ColumnType)
{
case ColumnType.Label:
SetContentColumn(e);
break;
case ColumnType.ComboBox:
SetContentColumn(e);
break;
case ColumnType.Button:
SetContentColumn(e);
break;
case ColumnType.Text:
case ColumnType.CheckBox:
default:
break;
}
}
/// <summary>
/// Get a DataColumn for each property based on the property type & attribute
/// </summary>
/// <param name="prop">a property in the class</param>
/// <returns></returns>
private ExtendedDataColumn GetDataColumn(PropertyInfo prop)
{
ColumnType columnType = GetColumnType(prop);
Type dataType = GetColumnDataType(columnType);
var dataColumn = new ExtendedDataColumn(prop.Name, prop.PropertyType, dataType, columnType);
dataColumn.Caption = GetPropertyDisplayName(prop);
return(dataColumn);
}
/// <summary>
/// Custom Sort for DataGrid
/// Although the DataGrid has sorting capability for columns
/// it didn't work correctly for columns containg controls
/// & I insisted to have sort perticularly based on Labels contents
/// so I added this event handler
/// </summary>
/// <param name="sender">DataGrid as object</param>
/// <param name="e">DataGridSortingEventArgs</param>
protected void OnSorting(object sender, DataGridSortingEventArgs e)
{
var dataGrid = sender as DataGrid;
if (dataGrid == null)
{
return;
}
ExtendedDataTable dataTable = (dataGrid.ItemsSource as DataView).Table as ExtendedDataTable;
DataGridColumn column = e.Column;
ExtendedDataColumn extendedDataColumn = dataTable.Columns[column.SortMemberPath] as ExtendedDataColumn;
column.SortDirection = GetSortDirection(column);
DataView dataView = dataGrid.ItemsSource as DataView;
Type comparerType;
BaseCustomComparer comparer;
switch (extendedDataColumn.ColumnType)
{
case ColumnType.Label:
// sort by decimal values in content of the label
dataView.Sort = string.Empty;
Type contentType = extendedDataColumn.ContentType;
comparerType = typeof(LabelComparer <>).MakeGenericType(contentType);
comparer = Activator.CreateInstance(comparerType, column.SortDirection.Value) as BaseCustomComparer;
dataTable.ApplySort(column.SortMemberPath, comparer);
break;
case ColumnType.ComboBox:
dataView.Sort = string.Empty;
comparer = new ComboBoxComparer <string>(column.SortDirection.Value);
dataTable.ApplySort(column.SortMemberPath, comparer);
break;
case ColumnType.Button:
// not allow to sort by button
break;
case ColumnType.CheckBox:
case ColumnType.Text:
default:
dataView.Sort = GetSort(column);
break;
}
e.Handled = true;
}