的CommandText未初始化

问题描述：

Dim LogData As sterm.markdata = New sterm.markdata() 

Dim datelistquery As String 
Dim properdate As String 



If Session("TenHolStDateHP1") = "%" or Session("TenHolStDateHP1") = "" Then 

    If Session("passedPropId") = "" Then 

    'QUERY USED IF NO DATE SELECTED AND A PROPID HAS NOT BEEN PASSED 
    datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE location = ''"&Session("TenChosenLocCode")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id"  

    Else 

    'QUERY USED IF NO DATE SELECTED AND A PROPID HAS BEEN PASSED 
    datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE location = ''"&Session("TenChosenLocCode")&"'' AND property_id = ''"&Session("passedPropId")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id" 

    End If 

Else 

If Session("holidayduration") = "7" Then 

    If Session("passedPropId") = "" Then 

    'QUERY USED IF DATE SELECTED AND 7 NIGHTS AND A PROPID HAS NOT BEEN PASSED 
    datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE part_full_flag = ''F'' AND location = ''"&Session("TenChosenLocCode")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week = ''"&Session("TenHolStDateHP1")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id" 

    Else 

    'QUERY USED IF DATE SELECTED AND 7 NIGHTS AND A PROPID HAS BEEN PASSED 
    datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE part_full_flag = ''F'' AND location = ''"&Session("TenChosenLocCode")&"'' AND property_id = ''"&Session("passedPropId")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week = ''"&Session("TenHolStDateHP1")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id"  

    End If 

Else If Session("holidayduration") = "14" Then 

    theyear = Left(Session("TenHolStDateHP1"), 4) 
    theweek = Right(Session("TenHolStDateHP1"), 2) 

    If theweek < "52" then 

     theyear = theyear 

     If theweek < "10" then 
      theweek = "0" & theweek + 1 
     Else 
      theweek = theweek + 1 
     End If 

    Else 

     If (theyear = "2015" and theweek < "53") or (theyear = "2020" and theweek < "53") or (theyear = "2026" and theweek < "53") or (theyear = "2032" and theweek < "53") or (theyear = "2037" and theweek < "53") then 
      theyear = theyear 
      theweek = "53" 
     Else 
      theyear = theyear + 1 
      theweek = "01" 
     End If 


    End If 

     If Session("passedPropId") = "" Then 

     'QUERY USED IF DATE SELECTED AND 14 NIGHTS AND A PROPID HAS NOT BEEN PASSED 
     datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE part_full_flag = ''F'' AND location = ''"&Session("TenChosenLocCode")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week in (''"&Session("TenHolStDateHP1")&"'',''"& theyear & theweek &"'') AND on_hold = ''NO'' AND booked = ''NO'' GROUP BY property_id HAVING count(property_id) > 1 ') ORDER BY number_slept, property_id" 

     Else 

     'QUERY USED IF DATE SELECTED AND 14 NIGHTS AND A PROPID HAS BEEN PASSED 
     datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE part_full_flag = ''F'' AND location = ''"&Session("TenChosenLocCode")&"'' AND property_id = ''"&Session("passedPropId")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week in (''"&Session("TenHolStDateHP1")&"'',''"& theyear & theweek &"'') AND on_hold = ''NO'' AND booked = ''NO'' GROUP BY property_id HAVING count(property_id) > 1 ') ORDER BY number_slept, property_id" 

     End If 

Else If Session("holidayduration") = "3/4" Then 


     If Session("passedPropId") = "" Then 

     'QUERY USED IF DATE SELECTED AND 3/4 NIGHTS AND A PROPID HAS NOT BEEN PASSED 
     datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE (part_full_flag = ''P'' or split_weeks = ''Y'') AND location = ''"&Session("TenChosenLocCode")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week = ''"&Session("TenHolStDateHP1")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id" 

     Else 

     'QUERY USED IF DATE SELECTED AND 3/4 NIGHTS AND A PROPID HAS BEEN PASSED 
     datelistquery = "SELECT DISTINCT property_id, ' - Sleeps ' + cast(number_slept as varchar) as combsleeps, number_slept FROM openquery ("+Application("hpbDsrc")+",'SELECT property_id, number_slept FROM web_details WHERE (part_full_flag = ''P'' or split_weeks = ''Y'') AND location = ''"&Session("TenChosenLocCode")&"'' AND property_id = ''"&Session("passedPropId")&"'' AND pets_yn like ''"&Session("TenPets")&"'' AND number_slept >= ''"&Session("TenAdults")&"'' AND year_week = ''"&Session("TenHolStDateHP1")&"'' AND on_hold = ''NO'' AND booked = ''NO'' ') ORDER BY number_slept, property_id" 


     End If 

End If 


'Query to get date in nice format 
properdate = "SELECT * FROM openquery ("+Application("hpbDsrc")+", 'SELECT starting_period from web_header WHERE year_week = ''"&Session("TenHolStDateHP1")&"'' ')" 

Dim drCode7 As DataSet = LogData.StermQ3(properdate) 

dgAvailable2.DataSource = drCode7.Tables(0).DefaultView 
dgAvailable2.DataBind() 

End If 

dd1.DataSource = LogData.StermQ3(datelistquery).Tables(0).DefaultView 
dd1.DataBind() 
dd1.Items.Insert(0, new listitem("Any location", "%"))

而且CommandText中尚未初始化错误不断显示了在IIS事件查看器日志

我不能复制自己的问题，但我知道，它发生任何人都可以提出任何

错误说，这条线发生dd1.DataSource = LogData.StermQ3(datelistquery).Tables(0).DefaultView

感谢

杰米

听起来像问题存在于'LogData.StermQ3' ... – Heinzi 2010-09-16 13:09:00

我是一个新手，所以这个问题会是什么？ – 2010-09-16 13:22:02

您需要发布StermQ3（）的源代码才能告诉您。 – 2010-09-16 14:24:28

答

我认为你是在没有一个满足下列条件的情况：

Session("TenHolStDateHP1") = "%" 
Session("TenHolStDateHP1") = "" 
Session("holidayduration") = "3/4" 
Session("holidayduration") = "14" 
Session("holidayduration") = "7"

既然你不初始化datelistquery到任何东西，你最终在else if似乎有可能你没有为这个字符串分配一个查询，并且可以将一个空字符串传递给你的函数。

您可能希望将else声明添加到您的if/else if声明链的末尾作为一个整体。你会在else语句中设置datelistquery取决于你在做什么。

的CommandText未初始化

相关推荐