如何使用中的datetimepicker
將數據插入到數據庫中?我試圖將其轉換爲: Format(name_of_the_datetimepicker.Value, "yyyy-MM-dd")
在我的SQL
聲明中,但我不知道我哪裏錯了。無法將數據插入到mysql datetimepicker
這裏是我的代碼:
Imports MySql.Data.MySqlClient
Public Class frmMain
Private Sub frmMain_Load(sender As Object, e As EventArgs) Handles MyBase.Load
If Not conn Is Nothing Then
conn.Close()
End If
conn = New MySqlConnection("Data Source=" & Server & ";user id=" & UserName & ";password=" & PassWord & ";database=" & DatabaseName & ";")
Try
conn.Open()
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub btn_save_Click(sender As Object, e As EventArgs) Handles btn_save.Click
Dim cmdSave As MySqlCommand
Dim sql As String
sql = "INSERT INTO (rental_date, inventory_id, customer_id, return_date, staff_id) VALUES ('" & Format(dt_picker_rental_date.Value, "yyyy-MM-dd") & "', '" & txt_inventory_id.Text & "', '" & txt_customer_id.Text & "', '" & Format(dt_picker_return_date.Value, "yyyy-MM-dd") & "', '" & txt_staff_id.Text & "')"
Try
cmdSave = New MySqlCommand(sql, conn)
cmdSave.ExecuteNonQuery()
MsgBox("Success!")
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
不管你如何格式化,'databases'有自己的格式(即如果字段的數據類型在'datetime'中)。你想在這裏實現什麼? –
您不使用'DateTimePicker'將數據插入到數據庫中。你使用'DateTimePicker'來允許用戶選擇一個日期,並從中得到一個'DateTime'值。然後你使用'DateTime'做什麼與'DateTimePicker'無關。同樣,您可以像插入任何其他用戶輸入一樣將'DateTime'值插入到數據庫中:使用參數。 'DateTime'值或其他數據來自何處無關緊要。瞭解如何使用參數並解決問題。 – jmcilhinney