我有一個從SQLite3數據庫填充的wx.Grid。用戶在文本控件中輸入數據,然後單擊「提交值」按鈕。這些值被寫入數據庫,然後該函數將數據庫加載到網格中。數據庫有一個索引,它從'1'開始。該表是這樣的:wxGrid行號不與SQLite3數據庫同步
CREATE TABLE Cycles
( index
INTEGER, First
INTEGER, Second
TEXT, Third
INTEGER, Fourth
INTEGER, Fifth
INTEGER, Sixth
INTEGER, Seventh
INTEGER, Eighth
INTEGER, PRIMARY KEY(index
)
當數據庫加載時,列號跳轉並從'0'而不是'1'開始,並且第一行值填充行'1',使行'0'空白。如果我將onLoadTable()中的行號定義更改爲'rowNumb = row +1',那麼當單擊「Commit Values」按鈕時,行從'1'開始,但這些值將填充第二行離開行'1 '空白。 這裏是全功能的,可重複的代碼:
import wx
import wx.lib.scrolledpanel as scrolled
import sqlite3 as sqlite
import wx.grid as gridlib
class MasterFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY,"",size=(900,400))
panel = wx.Panel(self, -1)
self.db = db
self.c = self.db.conn.cursor()
vbox = wx.BoxSizer(wx.VERTICAL)
self.grid = wx.grid.Grid(panel)
rowN = self.c.execute('SELECT Count(*) FROM Cycles')
val = rowN.fetchone()
rowNum = val[0] + 3
self.grid.CreateGrid(rowNum,8)
self.grid.Scroll(0,0)
self.enterBtn = wx.Button(panel, -1, "Commit Values")
self.Bind(wx.EVT_BUTTON, self.onEnter, self.enterBtn)
vbox.Add(self.enterBtn)
vbox.Add(self.grid)
panel.SetSizer(vbox)
panel.Fit()
def onEnter(self, event):
First = 1
Second = 'mine'
Third = 1
Fourth = .5
Fifth = 1
Sixth = 20
Seventh = 4
Eighth = 10
self.c.execute("INSERT INTO datatable VALUES (NULL,?,?,?,?,?,?,?,?);",(First,Second,Third,Fourth,Fifth,Sixth,Seventh,Eighth))
self.db.conn.commit()
self.onLoadTable()
def onLoadTable(self):
self.grid.ClearGrid()
for row in range(12):
rowNumb = row #+ 1
self.grid.SetRowLabelValue(row, "%s" %rowNumb)
meta = self.c.execute('SELECT * from datatable')
labels = []
for i in meta.description:
labels.append(i[0])
labels = labels[1:]
for i in range(len(labels)):
self.grid.SetColLabelValue(i, labels[i])
all = self.c.execute('SELECT * from datatable')
for row in all:
row_num = row[0]
cells = row[1:]
for i in range(len(cells)):
if cells[i] != None and cells[i] != "null":
self.grid.SetCellValue(row_num, i, str(cells[i]))
self.db.conn.commit()
class GetDatabase():
def __init__(self):
self.conn = sqlite.connect("data4.db")
if __name__ == "__main__":
db=GetDatabase()
app = wx.App(False)
frame = MasterFrame()
frame.Show()
app.MainLoop()
如果我添加... WHERE指數=%d」%rowNumb的SELECT語句,我得到sqlite3.OperationalError:近 「指數」:語法錯誤
指數減去1是一個SQL關鍵字。更好的名字你列別的東西或引用它'(反引號)。 –
我改變了列建議的名字,我發現如果我添加了一個rec ord然後將主鍵強制爲'0'(使用'DB Browser for SQLite'),第一行將正確加載到網格中。我需要從一個空表開始,第一個記錄始終以主鍵爲'1'開始。 –