c# - 在 C# 表单应用程序中记录用户活动

Question

在我的表单应用程序中，我有两个按钮。当用户点击按钮时，它会在 SQL 中更新。

所以我想记录用户在单独的 txt 文件（日志）中用户在表中输入的文本框中输入的数字。

请检查以下代码以了解我的应用程序在做什么

private void button_StatusChange_Click(object sender, EventArgs e)
{
    SqlConnection sqlcon = new SqlConnection("Data source = Test; Initial Catalog = TableName; user id = sa;pwd = 12345678 ");
    if (MessageBox.Show("Do you really need to change", "Success", MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.No)
        this.Close();

    SqlCommand updateCommand = sqlcon.CreateCommand();
    sqlcon.Open();
    updateCommand.CommandText = " update dbo.TableTBL set ColumName = '" + comboBox_statusChange.Text + "' where TId = '" + textBox_cNumber.Text + "'";

    string resultStatus = ((string)updateCommand.ExecuteScalar());
    updateCommand.ExecuteScalar();
    MessageBox.Show(" Status Changed Successfully");
    sqlcon.Close();

}

Answer 1

//very simple log to file
File.AppendAllText("filepath_here.txt", DateTime.Now.ToString(CultureInfo.InvariantCulture) + " " + textBox_cNumber.Text + "\r\n");