返回数据按钮不显示

插件：
点击按钮，调用即时库存列表
但是即时库存列表上 没有“返回数据按钮”

long useOrgId = Convert.ToInt64((this.View.Model.GetValue("FSaleOrgId") as DynamicObject)["Id"]);

ListShowParameter ShowPara = new ListShowParameter();
ShowPara.ParentPageId = this.View.PageId;
ShowPara.UseOrgId = useOrgId;
ShowPara.ListType = 1;
ShowPara.FormId = "STK_Inventory";
ShowPara.Height = 600;
ShowPara.Width = 1000;
this.View.ShowForm(ShowPara);

请问我如何设置：