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取数据窗口发生变化的一个函数(补充篇)
by ...---... (QQ:21417511) 前几天收到一份MAIL，说上文《取数据窗口发生变化的一个函数》写的函数中代码没放全，仔细看了一下，是用了另外一些函数，在此表示道歉啦。现在补全那些函数：of_strip() , of_getitem() , of_getstring() , uf_isnull()，不同的函数用不同颜色区分开了。 各位看官有兴趣自己看着改改吧…… :) /*------------------------------------------------------------------------------ Function: public u_dw.of_Strip Returns: String Parameters: value String a_szarg Description: --------------------------------------------------------------------------------
2005-4-25 2.0.0 Initial version by cuixuf (Mail:cuixuf@sina.com)
------------------------------------------------------------------------------*/ Integer nLength, nPos nLength = Len( a_szArg) For nPos = 1 To nLength
Choose Case Mid( a_szArg, nPos, 1)
Case "~t", "~r", "~n", '"',":"
a_szArg = Replace( a_szArg, nPos, 2, " ")
End Choose
Next Return Trim( a_szArg) /*------------------------------------------------------------------------------ Function: public u_dw.of_Getitem Returns: Any Parameters: value DataStore ads_target
value Integer ai_row
value Integer ai_col
value String as_type Description: --------------------------------------------------------------------------------
2005-4-25 2.0.0 Initial version by cuixuf (Mail:cuixuf@sina.com)
------------------------------------------------------------------------------*/ Choose Case Left(as_type,5)
Case Left("char(n)",5)
return ads_target.GetItemString(ai_row,ai_col)
Case Left("date",5)
return ads_target.GetItemDate(ai_row,ai_col)
Case Left("datetime",5)
return ads_target.GetItemDateTime(ai_row,ai_col)
Case Left("decimal",5)
return ads_target.GetItemDecimal(ai_row,ai_col)
Case "int","long",Left("number",5),"real","ulong"
return ads_target.GetItemNumber(ai_row,ai_col)
End Choose /*------------------------------------------------------------------------------ Function: public u_dw.of_Getitem Returns: Any Parameters: value Integer ai_row
value Integer ai_col
value String as_type Description: --------------------------------------------------------------------------------
2005-4-25 2.0.0 Initial version by cuixuf (Mail:cuixuf@sina.com)
------------------------------------------------------------------------------*/ Choose Case Left(as_type,5)
Case Left("char(n)",5)
return this.GetItemString(ai_row,ai_col)
Case Left("date",5)
return this.GetItemDate(ai_row,ai_col)
Case Left("datetime",5)
return this.GetItemDateTime(ai_row,ai_col)
Case Left("decimal",5)
return this.GetItemDecimal(ai_row,ai_col)
Case "int","long",Left("number",5),"real","ulong"
return this.GetItemNumber(ai_row,ai_col)
End Choose /*------------------------------------------------------------------------------ Function: public u_dw.of_Getstring Returns: String Parameters: value Any aa_data
value String as_type Description: --------------------------------------------------------------------------------
2005-4-25 2.0.0 Initial version by cuixuf (Mail:cuixuf@sina.com)
------------------------------------------------------------------------------*/ if isNull(aa_data) then return "[Null]" Choose Case Left(as_type,5)
Case Left("char(n)",5)
return "'"+string(aa_data)+"'"
Case Left("date",5),Left("datetime",5),Left("decimal",5),"int","long",Left("number",5),"real","ulong"
return string(aa_data)
End Choose /*------------------------------------------------------------------------------ Function: public n_functions.uf_Isnull Returns: Boolean Parameters: value String as_str Description: --------------------------------------------------------------------------------
2005-4-25 2.0.0 Initial version by cuixuf (Mail:cuixuf@sina.com)
------------------------------------------------------------------------------*/ if isnull(as_str) or trim(as_str) = "" then
return true
else
return false
end if
另外说一句，如果大家有什么建议或者叫个好，扔个鸡蛋之类的话，请直接在评论上给出吧，因为我的MAIL中经常会自动把邮件转到垃圾信箱中，上面提到的邮件就是这种情形，不好意思啊……还算好，我在删除垃圾邮件之前，看了一眼，呵呵！ 总而言之，欢迎大家评论，也让我知道有同志们关注，这样，我会放出更多的东东，小生在此谢过先！ 
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