Question

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

    Delete Button

Dim mydataset As New DataSet
Dim mydataAdapter As New MySqlDataAdapter

    Try
        Dim int As Integer = DataGridView1.SelectedRows(0).Index

        DataGridView1.Rows.Remove(DataGridView1.SelectedRows(0))
        mydataset.Tables(0).Rows(int).Delete()
        mydataAdapter.Update(mydataset, "datainfo")
        MessageBox.Show("Success!")

    Catch ex As Exception

    End Try



End Sub

Answer 1

1）不要使用mydataAdapter.Update（mydataset，＆＃34; datainfo＆＃34;）
2）尝试使用SqlCommandBuilder，如下所示：

Dim ESCBuilder As SqlCommandBuilder = New SqlCommandBuilder(mydataAdapter)
ESCBuilder.GetUpdateCommand()
da.UpdateCommand = ESCBuilder.GetUpdateCommand()
da.Update(mydataset)

3）尝试阅读有关System.Data.SqlClient命名空间的几乎所有内容。希望它有所帮助

当我删除行时，它再次加载时不断回来

1 个答案: