DBGridEh中怎么将'a '列的值加上'b'列的值赋给‘c’列(100分)

M

myxuejing

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• 2008-01-24

• #1

DBGridEh中怎么将'a '列的值加上'b'列的值赋给‘c’列

 

O

onyliu

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• 2008-01-24

• #2

select a,b,(a+b) as c from table

 

Q

qiuyan81

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• 2008-01-24

• #3

双击 DBGridEh的DataSet<br>选择C列 &nbsp;在OnGetText事件里<br>c列的字段<br>procedure TdtmConnect.C列GetText(Sender: TField;<br>&nbsp; var Text: String; DisplayText: Boolean);<br>begin<br>Text := 数据集.fieldByName('a').asInteger + 数据集.fieldByName('b').asInteger<br>end;

 

Y

ycluo

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• 2008-01-24

• #4

同意onyliu,通过临时字段来解决

 

M

myxuejing

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• 2008-01-25

• #5

接受答案了.