Question

我使用此代码将值保存到访问数据库

我做了什么。

将数据库添加到项目
将数据绑定绑定到文本框
在表单加载时，我得到了从数据库到文本框的值（所以我做得正确）
在按钮1上，我使用此代码添加新字段

代码：

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

在按钮保存上添加此代码

Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
    Try
        Validate()
        TabelaBindingSource.EndEdit()
         TabelaTableAdapter.Update(EUUsersDataSet.tabela)
        MessageBox.Show("Saved")
    Catch ex As Exception
        MessageBox.Show("Error during saving")
    End Try
End Sub

弹出我的盒子＆＃34;已保存＆＃34;但数据库中没有记录我做错了什么？

我尝试通过TabelaBindingNavigator添加它，即使我按下该按钮仍然不会保存它。

Answer 1

此代码适用于我：

Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    Me.TabelaTableAdapter.Fill(Me.Database1DataSet.Table1)
End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Me.TabelaBindingSource.AddNew()
End Sub

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
    Try
        Me.Validate()
        Me.TabelaBindingSource.EndEdit()
        Me.TabelaAdapterManager.UpdateAll(Me.Database1DataSet)
    Catch ex As Exception
        MessageBox.Show("Error during saving")
    End Try
End Sub

保存数据库中的数据时出错

1 个答案: