vb.net DataGridView无法正确重新加载

Question

我有一些文本框，我将数据插入表/ datagridview。我在datagridview中有一个搜索框和编辑功能。

当我没有使用以下代码将数据插入表格时，一切正常（编辑，搜索，删除等）如果我插入数据，则搜索和编辑不起作用。

下面有什么问题吗？

 Dim adap As New SqlDataAdapter("SELECT res_inv, res_snbr, First_Name, Last_Name, Item, Inventory_Start_Date, Inventory_End_Date FROM Resident_InventoryLists2", cn)


Dim builder As New SqlCommandBuilder(adap)
Dim dt As New DataTable
Dim res_snbr As Object




Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    'TODO: This line of code loads data into the 'CIInventoryDataSet.CurrentRoom_InventoryList' table. You can move, or remove it, as needed.
    Me.CurrentRoom_InventoryListTableAdapter.Fill(Me.CIInventoryDataSet.CurrentRoom_InventoryList)
    'TODO: This line of code loads data into the 'CIInventoryDataSet.Resident_InventoryLists2' table. You can move, or remove it, as needed.
    Me.Resident_InventoryLists2TableAdapter.Fill(Me.CIInventoryDataSet.Resident_InventoryLists2)

    DataGridView1.[ReadOnly] = False
    '
    adap.Fill(dt)
    '   ResidentInventoryViewBindingSource.DataSource = dt
    ResidentInventoryLists2BindingSource.DataSource = dt
    DataGridView1.DataSource = CurrentRoomInventoryListBindingSource
End Sub



Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles TextBox1.TextChanged
    If TextBox1.TextLength > 0 Then
        CurrentRoomInventoryListBindingSource.Filter = String.Format("res_last_name Like '%{0}%'", TextBox1.Text)
        '  ResidentInventoryViewBindingSource.Filter = String.Format("res_last_name like '{0}*' Or res_snbr = '{0}'", TextBox1.Text)
    Else
        CurrentRoomInventoryListBindingSource.Filter = String.Empty
    End If




End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click


    Try
        adap.Update(dt)
        MessageBox.Show("Saved successfully")
    Catch ex As Exception
        MessageBox.Show("Error updating database")
    End Try

End Sub

Private Sub DataGridView1_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick

    Dim i As Integer
    i = DataGridView1.CurrentRow.Index
    Me.rnum.Text = DataGridView1.Item(0, i).Value
    Me.rlastname.Text = DataGridView1.Item(1, i).Value
    Me.rfname.Text = DataGridView1.Item(2, i).Value
    Me.txtbed.Text = DataGridView1.Item(3, i).Value






End Sub


Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
    cn.Open()

    Dim cmd As New SqlCommand(("Insert INTO Resident_InventoryLists2 Values('" & _
                              rnum.Text & "','" & _
                              rfname.Text & "','" & _
                              rlastname.Text & "','" & _
                              txtitem.Text & "','" & _
                              StartDate.Text & "','" & _
                              EndDate.Text & "','" & _
                              txtCompany.Text & "')"), cn)

    cmd.ExecuteNonQuery()
    cn.Close()






    rnum.Clear()
    rfname.Clear()
    rlastname.Clear()
    rnum.Clear()
    txtitem.Clear()
    StartDate.Clear()

    adap.Fill(dt)

    Me.Resident_InventoryLists2TableAdapter.Fill(Me.CIInventoryDataSet.Resident_InventoryLists2)

End Sub


Private Sub TextBox2_TextChanged(sender As Object, e As EventArgs) Handles TextBox2.TextChanged
    If TextBox2.TextLength > 0 Then
        '  ResidentInventoryLists2BindingSource.Filter = String.Format("Last_Name Like '%{0}%'" Or "item like '%{0}%'", TextBox2.Text)
        ResidentInventoryLists2BindingSource.Filter = String.Format("Last_Name like '{0}*'", TextBox2.Text)

    Else
        ResidentInventoryLists2BindingSource.Filter = String.Empty
    End If
End Sub


Private Sub DataGridView2_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView2.CellContentClick
    For Each row As DataGridViewRow In DataGridView2.SelectedRows
        DataGridView2.Rows.Remove(row)
    Next

End Sub

结束班