Question

当然，我确信这很容易，但我因某些原因而陷入困境。我有以下内容，如果它们以变量s开头，则从数据库中选择名称。但我没有得到结果。

Public Sub load_oraria_EPAFES_FORM2(ByVal DATAGRID As DataGridView, ByVal LETTER As Button)

    Dim sda As New MySqlDataAdapter
    Dim dbdataset As New DataTable
    Dim bsource As New BindingSource

    conn()
    Try
        MessageBox.Show(LETTER.Text)
        mysqlconn.Open()

        dbdataset.Clear()

        Dim query As String
        query = "select  *  from  db.epafes WHERE (SURNAME LIKE '%" & LETTER.Text & "%  ')    "

        command = New MySqlCommand(query, mysqlconn)
        sda.SelectCommand = command
        sda.Fill(dbdataset)
        bsource.DataSource = dbdataset
        DATAGRID.DataSource = bsource
        sda.Update(dbdataset)

        mysqlconn.Close()

    Catch ex As Exception
        MessageBox.Show(ex.Message)
    Finally
        mysqlconn.Dispose()
    End Try

End Sub

Answer 1

就像想象的那样......时间停止，我可能已经累了...... 解决方案：query =“select * from db.epafes WHERE SURNAME like'％”＆amp; LETTER.Text＆amp; “％'”

我错过了一些“！

vbnet执行与变量查询

1 个答案: