Question

嗨，大家好我试图使用SQL将数据从MS Access 2007显示到文本框。我没有错误，程序运行正常，但它没有在文本框中显示数据。

我在设计名称EmpNoTextbox下检查了我的文本框属性，另一个文本框是EmpLnameTextbox。我对哪里出错了感到困惑。

以下是我的代码

Imports System.Data.OleDb
Public Class SearchForm
    Dim con As New OleDbConnection

    Private Sub ComboBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles Statdd.SelectedIndexChanged

    End Sub

    Private Sub showItems()
        con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0; Data Source=C:\Database\Company_db.accdb"
        con.Open()

        Dim ds As New DataSet
        Dim dt As New DataTable
        ds.Tables.Add(dt)
        Dim da As New OleDbDataAdapter

        da = New OleDbDataAdapter("SELECT * FROM tbl_empinfo", con)
        da.Fill(dt)

        EmpNoTextbox.Text = dt.Rows(0).Item(0)
        EmpLnameTextbox.Text = dt.Rows(0).Item(1)

        con.Close()
    End Sub

    Private Sub SearchButton_Click(sender As Object, e As EventArgs) Handles SearchButton.Click

    End Sub

    Private Sub CloseButton_Click(sender As Object, e As EventArgs) Handles CloseButton.Click
        Me.Close()
        Form1.Close()
    End Sub

    Private Sub MainMenuButton_Click(sender As Object, e As EventArgs) Handles MainMenuButton.Click
        Me.Close()
        Form1.Show()
    End Sub
End Class

从我的文本框访问中没有显示

0 个答案: