在 C# 中获取组合框文本 [英] Get the combobox text in C#

问题描述

我用枚举中的值填充了一个组合框.

I filled up a combobox with the values from an Enum.

现在组合框是文本吧?所以我使用了一个 getter 和一个 setter.我在阅读文本时遇到问题.

Now a combobox is text right? So I'm using a getter and a setter. I'm having problems reading the text.

代码如下:

public BookType type
{
    get
    {
        return (BookType)Enum.Parse(typeof(BookType), this.typeComboBox.Text);
    }
    set
    {
        this.typeComboBox.Text = value.ToString();
    }
}

出于某种原因，this.typeComboBox.Text 在我选择组合框上的项目时总是返回一个空字符串.

For some reason, this.typeComboBox.Text always returns an empty string when I select an item on the combobox.

有人看到我做错了什么吗?

Does someone see what I'm doing wrong?

我得出的结论是问题出在时间上.我调用文本的时间点确实是在我更改组合框之后，但仍然在该值被解析为值之前.问题现在以不同的方式解决，感谢所有的想法.

I have come to the conclusion that the problem lies in timing. The point in time at which I summon the text is indeed after I changed the combobox, but still before that value is parsed as a value. Problem fixed in a different way now, thanks for all the ideas.

推荐答案

我刚刚创建了一个简单的 Windows 窗体，一切正常.这是代码.

I just created a simple windows form, and everything worked okay for me. Here is the code.

public enum Test
{
    One, Two, Three
}

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        this.comboBox1.DataSource = Enum.GetNames(typeof(Test));
    }

    public Test Test
    {
        get 
        {
            return (Test)Enum.Parse(typeof(Test), this.comboBox1.Text);
        }
        set
        {
            this.comboBox1.Text = value.ToString();
        }
    }

    private void button1_Click(object sender, EventArgs e)
    {
        MessageBox.Show(this.Test.ToString());

        this.Test = Test.Two;

        MessageBox.Show(this.Test.ToString());
    }
}

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