C# 单选按钮：如何将两个值分配给单个单选按钮。一个文本值用于前端用户，另一个 ID 值用于程序

Question

我正在根据 SQL 表中的结果动态创建一组单选按钮。 SQL 结果存储在数据表中；有两列，一列用于客户端 ID，另一列用于客户端名称。每当用户激活此表单时，他们应该只看到客户端名称，但是当他们单击确定时，需要将 ID 值返回给一个变量。

我目前只传入表格中的 Client_Name 字段。如何返回客户端名称的 ID 值？是否可以为每个单独的按钮分配两个值？

创建按钮的代码：

//radio button array is initially set in the designer.cs file.
public System.Windows.Forms.RadioButton[] radioButtons { get; set; }

 public Clients()
        {
            InitializeComponent();
            FormBorderStyle = FormBorderStyle.FixedSingle;

            //Call connectDatabase method from ContractSearch
            ContractSearch con = new ContractSearch();
            string database = "dbo";
            string query = @"select distinct 
                                client_id
                                ,client_name
                            from
                                tbl_Clients";
            DataTable result = con.connectToDatabase(database, query);
            int client_row = result.Select().Length;

            radioButtons = new RadioButton[client_row];
            Label title = new Label();
            title.Text = "Select a Client:";

            int i = 0;
            int y = 0;
            title.Location = new Point(10, 10 + y * 20);
            Controls.Add(title);
            y += 1;

            //Iterate through all rows in table, creating radio buttons for each client name value
            foreach (DataRow cell in result.Rows)
            {

                radioButtons[i] = new RadioButton();
                radioButtons[i].Text = cell["Client_Name"].ToString();

                radioButtons[i].Location = new Point(10, 10 + y * 20);
                Controls.Add(radioButtons[i]);
                i += 1;
                y += 1;
            }

            //create OK button
            Button but_ok = new Button();
            but_ok.Location = new Point(15, 10 + y * 25);
            but_ok.Text = "OK";
            Controls.Add(but_ok);
            but_ok.Click += new EventHandler(this.but_ok_Click);

        }

这是确定按钮的单击事件。这是我正在检查以确定单击了哪个单选按钮的地方。

private void but_ok_Click(object sender, EventArgs e)
        {

            //lookup enumerations to pass in id values to AA screen
            foreach (RadioButton btn in radioButtons)
            {
                if(btn.Checked==false)
                {
                    continue; //skip to next loop iteration if radio button is not checked
                }
                else if(btn.Checked==true)
                {
                    Console.WriteLine(btn.Checked.ToString()+" "+btn.Text); //for debugging purposes
                    /*
                      store Client_ID value into but_value. This will be passed to the parent form.
                      radioButtons.Value does not serve a function. It is merely a placeholder.
                    */
                    but_Value = radioButtons.Value;
                }
            }
         Close();
        }  

Answer 1

控件的标签可能会有所帮助。

radioButtons[i].Tag = cell["client_ID"];

Console.WriteLine("Checked button's ID is: " + btn.Tag.ToString());