初学者提问，如何在ComboBox中添加选项？

Question

我想在ComboBox中显示出该文件夹中的文件的版本号，但不知错在哪里。请高手指点？        private void button1_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
                textBox1.Text = folderBrowserDialog1.SelectedPath;
        }        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            string path = textBox1.Text;
            string[] files = Directory.GetFiles(path);//获取目录中文件的名称
            for (int i = 0; i < files.Length; i++)//遍历文件
            {
                FileVersionInfo myFileVersionInfo1 = FileVersionInfo.GetVersionInfo(files[i]);
                this.comboBox1.Items.Add(myFileVersionInfo1.FileVersion);
            }
        }
谢谢

Answer 1

把增加放到selectchanged中不好吧，修改了代码，加了些判断，目录和有些文件是没有版本号属性的        private void button1_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
                textBox1.Text = folderBrowserDialog1.SelectedPath;            string path = textBox1.Text;            if (!string.IsNullOrEmpty(path))
            {
                comboBox1.Items.Clear();                string[] files = Directory.GetFiles(path);
                for (int i = 0; i < files.Length; i++)
                {
                    FileVersionInfo myFileVersionInfo1 = FileVersionInfo.GetVersionInfo(files[i]);
                    if (!string.IsNullOrEmpty(myFileVersionInfo1.FileVersion))
                    {
                        this.comboBox1.Items.Add(myFileVersionInfo1.FileVersion);
                    }
                }
            }        }        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
        }

Answer 2

   foreach (string fileName in files)//遍历文件
            {
                FileVersionInfo myFileVersionInfo1 = FileVersionInfo.GetVersionInfo(fileName);
                this.comboBox1.Items.Add(myFileVersionInfo1.FileVersion);
            }单步调试  确认 string[] files内取到值
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