private void AddItemToBasketGrid(IDescription itemDescription)
{
Grid newItemGrid = new Grid();
newItemGrid.Margin = new Thickness(5, 0, 0, 10);
newItemGrid.Height = 50;
var imageColumn = new ColumnDefinition();
imageColumn.Width = new GridLength(50);
newItemGrid.ColumnDefinitions.Add(imageColumn);
newItemGrid.ColumnDefinitions.Add(new ColumnDefinition());
ElementRenderer.VisualizeImageInPanel(
newItemGrid, itemDescription.Name, App.FileManager.GetBaseDirectory(itemDescription.GetType().Name));
var textBlock = new TextBlock();
textBlock.Text = itemDescription.Name;
textBlock.VerticalAlignment = System.Windows.VerticalAlignment.Center;
textBlock.Margin = new Thickness(5, 0, 0, 0);
textBlock.FontSize = 15;
Grid.SetColumn(textBlock, 1);
newItemGrid.Children.Add(textBlock);
this.BasketElementsStackPanel.Children.Add(newItemGrid);
}
private void AddItemToBasketGrid(IDescription itemDescription)
{
Grid newItemGrid = new Grid();
newItemGrid.Margin = new Thickness(5, 0, 0, 10);
newItemGrid.Height = 50;
var imageColumn = new ColumnDefinition();
imageColumn.Width = new GridLength(50);
newItemGrid.ColumnDefinitions.Add(imageColumn);
newItemGrid.ColumnDefinitions.Add(new ColumnDefinition());
ElementRenderer.VisualizeImageInPanel(
newItemGrid, itemDescription.Name, App.FileManager.GetBaseDirectory(itemDescription.GetType().Name));
var textBlock = new TextBlock();
textBlock.Text = itemDescription.Name;
textBlock.VerticalAlignment = System.Windows.VerticalAlignment.Center;
textBlock.Margin = new Thickness(5, 0, 0, 0);
textBlock.FontSize = 15;
Grid.SetColumn(textBlock, 1);
newItemGrid.Children.Add(textBlock);
this.BasketElementsStackPanel.Children.Add(newItemGrid);
}
/// <summary>
/// 解释逻辑非运算表达式.
/// </summary>
/// <param name="DbParameters">用于缓存在解释过程中可能会产生的参数。</param>
/// <returns></returns>
public override string Parsing(ref List <IDbDataParameter> DbParameters)
{
LogicNotDescription logicNot = (LogicNotDescription)this.Description;
List <Type> allowTypes = new List <Type>(new Type[] {
typeof(FieldDescription), typeof(ExpDescription), typeof(FunDescription), typeof(GroupDescription)
});
IDescription desObject = logicNot.Expression;
Type expType = desObject.GetType();
if (!(allowTypes.Contains(expType)))
{
throw new NotSupportedException(string.Format("Can not use this description object: {0} for logical not expression.", expType.FullName));
}
desObject.DescriptionParserAdapter = this.Adapter;
string buffer = desObject.GetParser().Parsing(ref DbParameters);
if (buffer[0] == (char)0x20)
{
return(string.Format(" NOT{0}", buffer));
}
else
{
return(string.Format(" NOT {0}", buffer));
}
}
protected override bool Matches(string item, IDescription mismatchDescription)
{
if (mismatchDescription.GetType() != typeof(NullDescription))
{
throw new Exception("Expected null description");
}
return(_match(item));
}
/// <summary>
/// 通过 Descript 对象获取其对应的解释器。
/// </summary>
/// <param name="desObj">命令描述对象。</param>
/// <returns></returns>
public ParserBase GetParserByObject(IDescription desObj)
{
ParserBase parser = Get(desObj.GetType());
if (parser != null)
{
parser.Description = desObj;
}
return(parser);
}
