BillShowParameter para = new BillShowParameter();
para.OpenStyle.ShowType = ShowType.Modal;//模态显示
para.FormId = "单据标识";
para.Status = OperationStatus.EDIT;// 修改显示
para.PKey = "100010";// 内码
para.ParentPageId = this.View.ParentFormView.PageId;
this.View.ShowForm(para);