使用注册表项填充文本框 [英] populating a text box with registry key

问题描述

好的，所以我一直在做一些事情并且有很好的工作，但是我对下一步感到难过。我是新手，所以学习很有趣，但是当你到达终点时也会感到沮丧。

Ok so I have been working on something and got a good part working but I'm stumped on this next step. I am new to this so it is fun learning but also frustrating when you hit the end of the line.

使用.Net 2.0

working with .Net 2.0

什么我正在检查是否存在注册表项。如果没有，创建它 - 这个工作

What I am doing is checking if a registry key exists. If it doesn't, create it - this works

找到一个字符串值，如果它不存在，创建它并填充主机名（也填写窗体文本框） - 作品

Find a string value and if it doesn't exist, create it and populate with hostname (also fill out the windows form textbox) - works

我想不出的是下一部分。如果 关闭我的窗体，再次运行，是的主机名在那里;但是，如果我然后删除该值（所以键仍然存在），它只是填充空白。

What I cannot figure out is the next part. If  close my windows form, run it again, yes the hostname is there; however, if I then delete the value (so the key still exists) it just populates blank.

我希望它看到FriendName为空并将主机名放在那里...任何帮助非常感谢。我的日子结束了，所以希望有时间可以帮助别人。

I want it to see FriendName is blank and put the hostname in there... any help greatly appreciated. My day is ending so hopefully some time for someone to assist.

我也把完整的代码放在这个下面......

I have put the FULL code below this too as well...

        private void Form1_Load(object sender, EventArgs e)
        {
            var pa = (System.Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE"));
            if (pa == "x86")
            { strSubKeyPath = "SOFTWARE"; }
            else
            { strSubKeyPath = "SOFTWARE\\Wow6432Node"; }
            RegistryKey pRegKey = Registry.LocalMachine.OpenSubKey(strSubKeyPath, true);
            pRegKey.CreateSubKey("BMSLCS");
            pRegKey = pRegKey.OpenSubKey("BMSLCS", true);
                Object myFriendlyName = pRegKey.GetValue("FriendName");
                    if (myFriendlyName == null) { pRegKey.SetValue("FriendName", System.Environment.MachineName); }
                    else { txtFriendlyName.Text = myFriendlyName.ToString(); }

using System;
using Microsoft.Win32;
using System.Windows.Forms;
using System.Diagnostics;

namespace LCSInventoryLite
{
        public partial class Form1 : Form
    { 
        private string strSubKeyPath;

        public Form1()
        { InitializeComponent(); }

        private void Form1_Load(object sender, EventArgs e)
        {
            var pa = (System.Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE"));
            if (pa == "x86")
            { strSubKeyPath = "SOFTWARE"; }
            else
            { strSubKeyPath = "SOFTWARE\\Wow6432Node"; }
            RegistryKey pRegKey = Registry.LocalMachine.OpenSubKey(strSubKeyPath, true);
            pRegKey.CreateSubKey("BMSLCS");
            pRegKey = pRegKey.OpenSubKey("BMSLCS", true);
                Object myFriendlyName = pRegKey.GetValue("FriendName");
                    if (myFriendlyName == null) { pRegKey.SetValue("FriendName", System.Environment.MachineName); }
                    else { txtFriendlyName.Text = myFriendlyName.ToString(); }
            Object myOwner = pRegKey.GetValue("LAB-Client");
                    if (myOwner == null) { pRegKey.SetValue("LAB-Client", ""); }
                    else {txtOwner.Text = myOwner.ToString(); }
                Object myLabLocation = pRegKey.GetValue("Lab-Location");
                    if (myLabLocation == null) { pRegKey.SetValue("Lab-Location", ""); }
                    else {txtLabLocation.Text = myLabLocation.ToString(); }
                Object myDepartment = pRegKey.GetValue("ISSystemNetworked");
                    if (myDepartment == null) { pRegKey.SetValue("ISSystemNetworked", ""); }
                    else { cbDepartment.Text = myDepartment.ToString(); }

            Object myNewFriendlyName = pRegKey.GetValue("FriendName");
                txtFriendlyName.Text = myNewFriendlyName.ToString();
        }

        private void bOk_Click(object sender, EventArgs e)
        {
            var pa = (System.Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE"));
            if (pa == "x86")
            { strSubKeyPath = "SOFTWARE"; }
            else
            { strSubKeyPath = "SOFTWARE\\Wow6432Node"; }
            RegistryKey pRegKey = Registry.LocalMachine.OpenSubKey(strSubKeyPath, true);
            pRegKey.CreateSubKey("BMSLCS");
            pRegKey = pRegKey.OpenSubKey("BMSLCS", true);
                pRegKey.SetValue("FriendName", txtFriendlyName.Text);
                pRegKey.SetValue("LAB-Client", txtOwner.Text); 
                pRegKey.SetValue("Lab-Location", txtLabLocation.Text); 
                pRegKey.SetValue("ISSystemNetworked", cbDepartment.Text);
            Process proc = null;
            try
            {
                string batDir = string.Format(@"c:\btop\bginfo");
                proc = new Process();
                proc.StartInfo.WorkingDirectory = batDir;
                proc.StartInfo.FileName = "refreshbginfo.cmd";
                proc.StartInfo.CreateNoWindow = false;
                proc.Start();
                proc.WaitForExit();
            }
            catch
            {
            }
            Application.Exit();
        }

        private void bCancel_Click_1(object sender, EventArgs e)
        { Application.Exit(); }

    }
}

推荐答案

想通了......在我学习的过程中，我迷失了为什么如果我做了一个if而且，我不能做其他的如果...

figured it out... with me learning, I was lost why if I did an if and else, I couldn't do an Else If...

现在我看到了，你不需要这样做。继续做IF。然后我在网上发现了一个论坛主题并将其拉进来，现在我已经金了！

well now I see it, you don't need to do that. Just keep doing IF. I then found a forum topic on the web and pulled that in and now I'm golden!

            if (myFriendlyName != null) { pRegKey.SetValue("FriendName", System.Environment.MachineName); }

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