Dynamics AX 4.0 多表looup

project rar:http://files.cnblogs.com/files/sxypeace/PrivateProject_MutilTableLookupOnCtronl.rar

在AX 中控件的looup方法需要展示多表数据的时候，需要新建一个lookupFrom ，或者将所有数据写入临时表才能达到目的。

翻看了一下ClasssysTableLook,发现其实是动态创建form添加数据源显示控件来实现的。

于是new了一个新的ClasssysViewLook，来实现多表lookup。

public void lookup()
{


    SysViewLookup       SysViewLookup = new SysViewLookup();
    query               query = new query();
    queryBuildDatasource    qbds1;
    queryBuildDatasource    qbds2;
    queryBuildDatasource    qbds3;
    ;


    //must add by desc sorting
    SysViewLookup.parmAddLookupTableId( tableNum(InventDim));
    SysViewLookup.parmAddLookupTableId( tableNum(SalesLine));
    SysViewLookup.parmAddLookupTableId( tableNum(SalesTable));

    qbds1 = query.addDataSource(tableNum(SalesTable));
    qbds2 = qbds1.addDataSource(tablenum(salesLine));
    qbds2.relations( true);
    qbds3 = qbds2.addDataSource(tableNum(InventDim));
    qbds3.relations(true);

    sysQuery::findOrCreateRange( qbds2, fieldNum(salesLine,ItemId)).value("22MA*00K");
    qbds1.addSortField( fieldNum(SalesTable,CreatedDate),SortOrder::Descending);
    qbds1.addSortField( fieldNum(SalesTable,SalesId),SortOrder::Descending);
    qbds1.addSortField( fieldNum(SalesTable,CustAccount),SortOrder::Ascending);
    qbds2.addSortField( fieldNum(SalesLine,ItemId),SortOrder::Ascending);
    qbds2.addSortField( fieldNum(InventDim,InventSizeId),SortOrder::Ascending);

    SysViewLookup.parmCallingControl( this);
    SysViewLookup.addLookupfield( TableNum(salesTable), fieldNum(SalesTable,CreatedDate));
    SysViewLookup.addLookupfield( TableNum(salesTable), fieldNum(SalesTable,SalesId),true);
    SysViewLookup.addLookupfield( TableNum(salesTable), fieldNum(SalesTable,CustAccount));
    SysViewLookup.addLookupfield( TableNum(SalesLine), fieldNum(SalesLine,ItemId));
    SysViewLookup.addLookupfield( TableNum(InventDim), fieldNum(InventDim,InventSizeId));

    SysViewLookup.parmQuery( query);
    SysViewLookup.performFormLookup();
}

附完整代码的下载地址　http://files.cnblogs.com/files/sxypeace/PrivateProject_MutilTableLookupOnCtronl.rar