// These methods are not used, but they are very useful when developing the Design experience
#if Development
/// <summary>
/// Adds a default column for each property in the data source
/// </summary>
public static void GenerateColumns(ModelItem dataGridModelItem, EditingContext context)
{
using (ModelEditingScope scope = dataGridModelItem.BeginEdit(Properties.Resources.Generate_Columns))
{
// Set databinding related properties
DataGridDesignHelper.SparseSetValue(dataGridModelItem.Properties[MyPlatformTypes.DataGrid.AutoGenerateColumnsProperty], false);
// Get the datasource
object dataSource = dataGridModelItem.Properties[MyPlatformTypes.DataGrid.ItemsSourceProperty].ComputedValue;
if (dataSource != null)
{
foreach (ColumnInfo columnGenerationInfo in DataGridDesignHelper.GetColumnGenerationInfos(dataSource))
{
ModelItem dataGridColumn = null;
dataGridColumn = DataGridDesignHelper.CreateDefaultDataGridColumn(context, columnGenerationInfo);
if (dataGridColumn != null)
{
dataGridModelItem.Properties[MyPlatformTypes.DataGrid.ColumnsProperty].Collection.Add(dataGridColumn);
}
}
}
scope.Complete();
}
}
private void CreateColumn()
{
// The user may have already had a column for this property. If so we want to restore it so any changes
// they made will be restored.
if (_oldColumnModelItem != null)
{
// bring back the properties & column that we had before.
// pull the model properties from the column
_restoreColumn = false;
Column = _oldColumnModelItem;
}
else
{
// Update the column with the model properties.
_restoreColumn = true;
ModelItem column = DataGridDesignHelper.CreateDefaultDataGridColumn(_parentCollection.PropertyColumnEditor.EditingContext, _columnGenerationInfo);
if (_columnGenerationInfo.HeaderFromAttribute == null)
{
this.ColumnHeader = _columnGenerationInfo.PropertyInfo.Name;
}
Column = column;
}
}