KKK下拉框lookupedit綁定數據時，添加一條固定數據

var datasourcePDFfile = manager.SelectPDFFile(this.ID); // 添加一條無章節選項 datasourcePDFfile.Insert(0, new LookupEditEntity() { KEY_ = new Guid(), VALUE_ = "無" }); // 賦值 this.luepdfnr.Properties.DataSource

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