动态添加图片控件例子

void addPicBox()

{

    FormWindowControl           c;

    QueryRun                    qr;

    DocuRef         tmpDocuRef;

    Image           tmpImage;

    int             i = 1;

    int             j, maxControl;

    container       tmpBitmap,picCon;

    nj_ItemPhotoTable   nj_ItemPhotoTable,ItemPhotoTable;

    DocuImgs       curDocuimgs;

    ;

    element.lock();

    maxControl = groupPics.controlCount(); //获取groupPics的控件数量

    picCon = connull();

    Select FirstOnly ItemPhotoTable Where ItemPhotoTable.ItemId == Pictorical.ItemId

        &&  ItemPhotoTable.Color == Pictorical.Color;

    qr = this.initQuery(ItemPhotoTable);

    while (qr.next())

    {

        if(qr.changed(tableNum(Docuimgs)))

        {

         curDocuimgs = qr.get(tablenum(Docuimgs));

        }

        tmpDocuRef = qr.get(tablenum(DocuRef));

        tmpBitmap = curDocuimgs.Image;

        if (connull() == tmpBitmap)

            continue;

        tmpImage = new Image();

        if (i > maxControl) //如果groupPics中已有windows控件

            {

            c = groupPics.addControl(FormControlType::Image, "RunTimeControl");

            c.labelPosition(1);

            c.labelAlignment(2);

            c.imagemode(2);

            controlCon += [c.id()];

            }

        else

            c = this.control(conpeek(controlCon,i));//获取这个控件

        c.visible(true);

        c.label(strfmt('%1', tmpDocuRef.Nj_PhotoView));// 图片类型（角度、平面、侧面。。。）

        tmpImage.setData(tmpBitmap);

        c.image(tmpImage);

        picCon += [c.id(), tmpDocuRef.RecId];

        i++;

        }

    for (j = i; j<=maxControl; j++)  //将多余的控件隐藏

        {

        c = this.control(conpeek(controlCon, j));

        c.visible(false);

        }

    this.controlMethodOverload(true);

    element.unLock();

    element.redraw();

}