Question

我使用组合框过滤网格视图，发生网格视图过滤，但是当我想在网格视图中输入数据时，如果网格还有一行（数据），则显示消息错误，因此我无法输入数据，否则当网格没有任何数据时，我可以输入一个值

gridview后面的表格有一个自动生成的字段

Private Sub Le_clientComboBox_SelectedIndexChanged(sender As Object, e As EventArgs) Handles Le_clientComboBox.SelectedIndexChanged
        Try

            Me.DevisBindingSource.Filter = "Code_client = '" & Le_clientComboBox.SelectedValue & "'"

        Catch ex As Exception
            MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
        Finally
            If con.State = ConnectionState.Open Then
                con.Close()
            End If
        End Try
    End Sub

在加载表单

上填充gridview

Private Sub frmDevis_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    'TODO: cette ligne de code charge les données dans la table 'Tassaruf_tijariDataSet_Devis.Devis'. Vous pouvez la déplacer ou la supprimer selon vos besoins.
    Me.DevisTableAdapter.Fill(Me.Tassaruf_tijariDataSet_Devis.Devis)


    Catch ex As Exception
        MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
    Finally
        If con.State = ConnectionState.Open Then
            con.Close()
        End If
    End Try
End Sub

Answer 1

我回应自己

我认为问题在于过滤我添加删除过滤器，所以它更好，我现在可以输入数据，但网格不能正常工作！显示一行唯一行

 Private Sub Le_clientComboBox_SelectedIndexChanged(sender As Object, e As EventArgs) Handles Le_clientComboBox.SelectedIndexChanged
    Try
        Me.DevisBindingSource.RemoveFilter()
        Me.DevisBindingSource.Filter = "Code_client = '" & Le_clientComboBox.SelectedValue & "'"

    Catch ex As Exception
        MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
    Finally
        If con.State = ConnectionState.Open Then
            con.Close()
        End If
    End Try
End Sub

用组合框填充gridview

1 个答案: