VS C# 简单的单选按钮开关

Question

我试图在此处搜索解决方案，但 none 可用的解决方案似乎有效。两个单选按钮在一个组合框中。

代码：

private void radioButton_CheckedChanged(object sender, EventArgs e)
        {

            RadioButton senderControl = sender as RadioButton;
            if (!senderControl.Checked)
                return;

            switch ((sender as RadioButton).Text)
            {
                case "radioButton1":
                    textBox4.Clear();
                    comboBox6.Enabled = false;
                    textBox4.ReadOnly = true;
                    textBox4.Enabled = false;
                    textBox4.Text = "000";
                    break;

                case "radioButton2":
                    textBox4.Clear();
                    comboBox6.Enabled = true;
                    textBox4.ReadOnly = false;
                    textBox4.Enabled = true;
                    textBox4.Text = "";
                    break;
            }                 
        }

它不想工作，因为它什么都不做

Answer 1

我假设您的事件“radioChecked”已分配给单个 radioButton。您需要将两个单选按钮附加到同一个事件。您可以在代码或表单中这样做：

public Form1()
        {
            InitializeComponent();
            radioButton1.CheckedChanged += new EventHandler(radioButton_CheckedChanged);
            radioButton2.CheckedChanged += new EventHandler(radioButton_CheckedChanged);
        }

但之后您需要转到 Form.Designer.cs 文件并删除将事件分配给单选按钮的代码行：

this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton_CheckedChanged); // <-- delete

另外，你的第一个条件 if (!senderControl.Checked) 是不必要的，因为如果你点击单选按钮，那么它无论如何都会被选中。

所以，这是您的代码片段：

public Form1()
        {
            InitializeComponent();
            radioButton1.CheckedChanged += new EventHandler(radioButton_CheckedChanged);
            radioButton2.CheckedChanged += new EventHandler(radioButton_CheckedChanged);
        }

private void radioButton_CheckedChanged(object sender, EventArgs e)
        {
            RadioButton senderControl = sender as RadioButton;
            switch (senderControl.Text)
            {
                case "radioButton1":
                    textBox4.Clear();
                    comboBox6.Enabled = false;
                    textBox4.ReadOnly = true;
                    textBox4.Enabled = false;
                    textBox4.Text = "000";
                    break;

                case "radioButton2":
                    textBox4.Clear();
                    comboBox6.Enabled = true;
                    textBox4.ReadOnly = false;
                    textBox4.Enabled = true;
                    textBox4.Text = "";
                    break;
            }
        }

VS C# 简单的单选按钮开关

VS C# simple radio button switch

c#

radio-button