关于使用syntaxfromsql,该如何解决

关于使用syntaxfromsql
用syntaxfromsql 创建一动态数据窗口后，想在summary区，给相应的字段加求和的列，要怎么写？？

------解决方案--------------------

C# code

dw_5.Modify("datawindow.summary.height=84 datawindow.summary.color='536870912' ")
dw_5.Modify('create compute(band=summary alignment="0" expression="~'合计:~'"border="0" '+&
    'color="33554432" x="10" y="4" height="76" width="' + dw_5.Describe("部门_t.width") + &
    '" html.valueishtml="0"  name=c_hj_t visible="1"  font.face="Arial" font.height="-9" font.weight="700"  font.family="2" font.pitch="2" font.charset="0" background.mode="2" background.color="536870912" )')

dw_5.Modify('create compute(band=summary alignment="1" expression="sum(qtyi)"border="0" color="33554432" x="' +&
    dw_5.Describe("qtyi_t.x") + '" y="4" height="76" width="' + dw_5.Describe("qtyi_t.width") +&
    '" format="#,##0" html.valueishtml="0"  name=qtyi_sum visible="1"  font.face="Arial" font.height="-9" font.weight="700"  font.family="2" font.pitch="2" font.charset="0" background.mode="2" background.color="536870912" )')

关于使用syntaxfromsql,该如何解决

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