Question

我运行的代码没有任何错误，但数据库没有更新其字段。

运行时没有错误，但数据库不更新其字段

Sub UpdatePassword(ci As ClientInformation)
    Try
        Using con As New SqlCeConnection(GetConString)
            If con.State = Data.ConnectionState.Closed Then con.Open()
            Dim adapt As New SqlCeDataAdapter(String.Format("UPDATE AdminInformation 
            where ClientID='{0}' SET PWD='{1}'", ci.ClientID, ci.Password), con)
        End Using
    Catch ex As Exception

    End Try
End Sub

我的客户信息类：

Public Class ClientInformation
    Public Property ClientID As String

    Public Property SubscriptionEndDate As Date

    Property FirstName As String

    Property Surname As String

    Property Email As String

    Property Company As String

    Property PostalAdd As String

    Property Country As String

    Property Tel As String

    Property Fax As String

    Property Password As String

End Class

我的事件处理程序：

Protected Sub btnChangePass_Click(sender As Object, e As EventArgs) Handles 
    btnChangePass.Click

    Dim ci As New ClientInformation

    If txtBoxNewPass.Text = txtBoxConfirmNewPass.Text Then
        ci.Password = txtBoxNewPass.Text
        lblConfirmPasswordMsg.Visible = False

        dh.UpdatePassword(ci)

        lblPasswordChanged.Visible = True
        txtBoxNewPass.Text = ""
        txtBoxConfirmNewPass.Text = ""
    Else
        txtBoxNewPass.Text = ""
        txtBoxConfirmNewPass.Text = ""
        lblConfirmPasswordMsg.Visible = True
    End If
End Sub

我的连接字符串：

Private Function GetConString() As String
    Return ConfigurationManager.ConnectionStrings("conStringLicenses").ConnectionString
End Function

任何帮助将不胜感激，提前谢谢。

PS数据库是sql compact，visual studio 2012，windows 7

Answer 1

我认为你的查询应该是这样的

UPDATE AdminInformation SET PWD='{1}' where ClientID='{0}'

您在 SET

之前启动了 WHERE 子句

更新：

尝试更改

Dim adapt As New SqlCeDataAdapter(String.Format("UPDATE AdminInformation  where ClientID='{0}' SET PWD='{1}'", ci.ClientID, ci.Password), con)

进入这个

Dim cmd As New SqlCeCommand(String.Format("UPDATE AdminInformation SET PWD='{1}' where ClientID='{0}'", ci.ClientID, ci.Password), con)
cmd.ExecuteNonQuery()

触发click事件时，数据库字段不会更新

1 个答案: