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'各位好！

'咨詢下使用Wincc MShflexgrid連接SQLserver數(shù)據(jù)庫時(shí)，想顯示數(shù)據(jù)庫中所有內(nèi)容，但是激活后只顯示一行數(shù)據(jù)是怎么回事，實(shí)際數(shù)據(jù)庫中有40條數(shù)據(jù)。

'以下部分前后有省略，代碼如下：

················································
ssql1= "SELECT *  FROM  [Data].[dbo].[Recipe]"

Set oCom.ActiveConnection = Conn
oCom.CommandText = ssql1          
Set oRs1 = oCom.Execute

m = oRs1.RecordCount  


'---------------------設(shè)置控件顯示--------------------'
Dim alllist
Set alllist = ScreenItems("報(bào)表")
    alllist.clear
    alllist.Cols=8            
    alllist.Rows = m+1

'---------------------將數(shù)據(jù)寫入表格--------------------'        
oRs1.Movefirst
    For i = 1 To m      
              
       alllist.TextMatrix(i,0) = i    
       alllist.TextMatrix(i ,1) = oRs1.fields(0).Value
       alllist.TextMatrix(i ,2) = oRs1.Fields(1).Value
       alllist.TextMatrix(i ,3) = oRs1.Fields(2).Value
       alllist.TextMatrix(i ,4) = oRs1.Fields(3).Value
       alllist.TextMatrix(i ,5) = oRs1.Fields(4).Value
       alllist.TextMatrix(i ,6) = oRs1.Fields(5).Value    
       alllist.TextMatrix(i ,7) = oRs1.Fields(6).Value
       alllist.TextMatrix(i ,8) = oRs1.Fields(7).Value    
       oRs1.movenext
        
   Next
········································

檢查到原因了，原來是alllist.Cols=8 這里出問題了。

PLC與數(shù)據(jù)庫通訊有專門的智能網(wǎng)關(guān)的，支持PLC跟數(shù)據(jù)庫之間雙向通訊，
包括MySQL，SQLServer，PostgreSQL等都支持，
一個(gè)網(wǎng)關(guān)支持多臺PLC的，相關(guān)案例： 多臺PLC對接數(shù)據(jù)庫.zip (2445 K) 下载次数:11