✅ Add Dynamic Grid Columnvar nColIdx = this.grd_type02.appendContentsCol("head");this.grd_type02.setCellProperty ( "head" , nColIdx, "text", "202501");this.grd_type02.setFormatColProperty ( nColIdx, "SIZE", 120);this.grd_type02.setCellProperty ( "body" , nColIdx, "text", "bind:AMT_202501");this.grd_type02.setCellProperty ( "body" , nColIdx, "textAlign", "right");this.grd_type02.setCellProperty (..