Question

我使用C＃作为Winforms应用程序，我似乎无法更改回默认/未选择的＆＃39;我的3组单选按钮上的颜色。我知道有一种方法，无需单独按下每个按钮。 foreach中用于清除已检查状态的部分正常工作。这是我尝试过的。

 public void ClearForm()
        {
            foreach (RadioButton radio1 in carbonationGroupBox.Controls.OfType<RadioButton>().ToList())

                if (radio1.Checked == true)
                {
                    radio1.ForeColor = Color.Black;
                    radio1.Checked = false;
                }

            foreach (RadioButton radio2 in strengthGroupBox.Controls.OfType<RadioButton>().ToList())

                if (radio2.Checked == true)
                {
                    radio2.ForeColor = Color.Black;
                    radio2.Checked = false;
                }

            foreach (RadioButton radio3 in sweetnessGroupBox.Controls.OfType<RadioButton>().ToList())

                if (radio3.Checked == true)
                {
                    radio3.ForeColor = Color.Black;
                    radio3.Checked = false;
                }

这里是来自其中一个组框的三个单选按钮的代码，这些按钮会改变颜色开始。

private void topStrengthHydromel_CheckedChanged(object sender, EventArgs e)
{
    topStrengthStandard.ForeColor = Color.Black;
    topStrengthSack.ForeColor = Color.Black;
    topStrengthHydromel.ForeColor = Color.Lime;
    strengthRadionButton = "Hydromel";
}

private void topStrengthStandard_CheckedChanged(object sender, EventArgs e)
{
    topStrengthHydromel.ForeColor = Color.Black;
    topStrengthSack.ForeColor = Color.Black;
    topStrengthStandard.ForeColor = Color.Lime;
    strengthRadionButton = "Standard";
}

private void topStrengthSack_CheckedChanged(object sender, EventArgs e)
{
    topStrengthHydromel.ForeColor = Color.Black;
    topStrengthStandard.ForeColor = Color.Black;
    topStrengthSack.ForeColor = Color.Lime;
    strengthRadionButton = "Sack";
}

Answer 1

我发现的问题是foreach区域内的事件顺序。

此订单：

            if (radio1.Checked == true)
            {
                radio1.ForeColor = Color.Black;
                radio1.Checked = false;
            }

触发_CheckChanged事件并将颜色重新添加到Lime。

private void topStrengthHydromel_CheckedChanged(object sender, EventArgs e)
{
    topStrengthStandard.ForeColor = Color.Black;
    topStrengthSack.ForeColor = Color.Black;
    topStrengthHydromel.ForeColor = Color.Lime;
    strengthRadioButton = "Hydromel";
}

切换顺序，以便radio1.Checked = false在radio1.ForeColor = Color.Black;完成之前发生了{{1}}！

在Winforms

1 个答案: