触发doubleclicked后出错
<p>我刚做好的一个窗口,点击数据窗口中的一条数据后,整条数据的详细信息全部展示到几个singlelineedit空间中,但是当触发doubleclicked事件后就弹出如下错误,郁闷,不知何解,望高手帮帮小弟。</p><p>错误信息: <br/> --------------------------- <br/> PowerBuilder Application Execution Error (R0036) <br/> --------------------------- <br/> Application terminated. <br/> <br/> Error: Name not found accessing external object property td_paperno at </p><p>line 3 in doubleclicked event of object dw_draw of w_draw. <br/> --------------------------- <br/> 确定 <br/> --------------------------- <br/></p> <p>string ls_paperno<br/>if dw_draw.rowcount()<row or isnull(dw_draw.rowcount()) then return;<br/><font color="#ff0000">ls_paperno=dw_draw.object.td_paperno</font></p><p><font color="#000000">跟踪时发现错误在红色区域。</font></p> 看看
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