将 lmstat 输出到远程许可证服务器上的 C# 程序

我正在开发我的第一个C#程序。我创建了一个 GUI，您可以在其中选择组合框中的网络许可软件包，它会在文本框 （lmutil.exe） 中显示许可证使用情况和统计信息。

问题是：第一次从组合框中选择时，

没有任何反应，但是当您从组合框列表中选择另一个软件时，它会输出先前选择的软件的许可证统计信息。以下是我的代码：

 public partial class MainWindow : Window
 {
    public MainWindow()
    {
        InitializeComponent();
    }
    private void ComboBoxItem_Selected(object sender, RoutedEventArgs e)
    {
        if (ComboBox1.Text == "ComboItem1")
        {
            Process proc = new Process();
            proc.StartInfo.FileName = "lmutil.exe";
            proc.StartInfo.Arguments = "lmstat -a -c port@host";
            proc.StartInfo.UseShellExecute = false;
            proc.StartInfo.RedirectStandardOutput = true;
            proc.StartInfo.CreateNoWindow = true;
            // start the process
            proc.Start();
            string s = proc.StandardOutput.ReadToEnd();
            TextBox1.Text = s;

        }
        else
        {
            if (ComboBox1.Text == "ComboItem2")
            {
                Process proc = new Process();
                proc.StartInfo.FileName = "lmutil.exe";
                proc.StartInfo.Arguments = "lmstat -a -c port@host";
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.CreateNoWindow = true;
                // start the process
                proc.Start();
                string s = proc.StandardOutput.ReadToEnd();
                TextBox1.Text = s;

            }
            else
            {
                if (ComboBox1.Text == "ComboItem3")
                {
                    Process proc = new Process();
                    proc.StartInfo.FileName = "lmutil.exe";
                    proc.StartInfo.Arguments = "lmstat -a -c port@host";
                    proc.StartInfo.UseShellExecute = false;
                    proc.StartInfo.RedirectStandardOutput = true;
                    proc.StartInfo.CreateNoWindow = true;
                    // start the process
                    proc.Start();
                    string s = proc.StandardOutput.ReadToEnd();
                    TextBox1.Text = s;
                }
    }
}

public partial class Form1 : Form {
    public Form1() {
        InitializeComponent();
    }
    private void comboBox1_SelectedIndexChanged(Object sender, EventArgs e){
        switch (this.comboBox1.Text){
            case "item1":
                this.textBox1.Text = this.getLMStat(158, "ONE");
                MessageBox.Show("DONE");
                break;
            case "item2":
                this.textBox1.Text = this.getLMStat(158, "TWO");
                MessageBox.Show("DONE");
                break;
            case "item3":
                this.textBox1.Text = this.getLMStat(158, "THREE");
                MessageBox.Show("DONE");
                break;
            default:
                MessageBox.Show("Unsupported Value");
                break;
        }
    }
    private String getLMStat(int port, String server){
        try {
            Process proc = new Process();
            proc.StartInfo.FileName = "lmutil.exe";
            proc.StartInfo.Arguments = "lmstat -a -c " + port + "@" + server;
            proc.StartInfo.UseShellExecute = false;
            proc.StartInfo.RedirectStandardOutput = true;
            proc.StartInfo.CreateNoWindow = true;
            // start the process
            proc.Start();
            return proc.StandardOutput.ReadToEnd();
        }
        catch (Exception){return "Do something with Exception";}
    }
}