Vb.net 使用组合框更改图像的背面颜色，并将数据保存到数据网格视图

我可以使用在组合框中输入的文本更改图像的背景色，但当我将数据保存到数据网格中时，背景色不会更改

这是我的密码：

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        On Error GoTo SaveErr
        MachineHistoryBindingSource.EndEdit()
        Machine_HistoryTableAdapter.Update(HistoryDataSet.Machine_History)
        MessageBox.Show("OK Complete")
    SaveErr:
        Exit Sub
        Dim tempcolor4 As String
        Dim tempcolor1 As String

        tempcolor4 = ComboBox4.Text
        tempcolor1 = ComboBox1.Text

        If tempcolor4.Equals("Running") And tempcolor1.Equals("1") Then
            Form2.PictureBox15.BackColor = Color.Green
        ElseIf tempcolor4.Equals("Stop") And tempcolor1.Equals("1") Then
            Form2.PictureBox15.BackColor = Color.Red
            ComboBox1.SelectedIndex = -1
            ComboBox4.SelectedIndex = -1
    End Sub

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

    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        MachineHistoryBindingSource.MovePrevious()
    End Sub

    Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
        MachineHistoryBindingSource.AddNew()
    End Sub

    Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click
        MachineHistoryBindingSource.MoveNext()
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Form15.Show()
    End Sub

    Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
        Me.Close()
    End Sub
End Class

---

您将在设置颜色之前退出该方法

On Error GoTo SaveErr
        MachineHistoryBindingSource.EndEdit()
        Machine_HistoryTableAdapter.Update(HistoryDataSet.Machine_History)
        MessageBox.Show("OK Complete")
    SaveErr:
        Exit Sub '<--- Right here

---

我删除了“出错时转到SaveErr”和SaveErr。因为发生了一个错误，当前背景颜色正在更改，但问题数据未保存在数据网格中。请尝试再次运行.Fill。顺便说一句，在Form1\u负载中，似乎您正在填充相同的内容3次。尝试删除其中的2个。我相信我回答了你原来的问题，所以请接受我的答案，并在答案左边打勾。数据库是否反映了这些更改？

Try
    MachineHistoryBindingSource.EndEdit()
    Machine_HistoryTableAdapter.Update(HistoryDataSet.Machine_History)
    MessageBox.Show("OK Complete")
Catch ex As Exception
     MessageBox.Show(ex.Message)
     Exit Sub
End Try