C＃ToolStripComboBox如果语句不起作用？

Question

我使用cmd打开程序来解压缩文件。在我的ToolStripMenu中，我创建了一个WarningToggleComboBox和一个DebugToggleComboBox。

所以在另一个类中，我创建了一个运行cmd的函数，并在RichTextBox中获取错误和输出。

在错误之上我做了一个If语句，声明如果DebugToggleComboBox =＆＃34; On＆＃34;然后将特定文本附加到RichTextBox。

错误之后我做了一个If语句，声明如果WarningToggleComboBox =＆＃34; Off＆＃34;它将在包含随机整数的错误中搜索特定行，并用空字符串替换警告文本。

问题是每次我选择DebugToggleComboBox值为＆＃34; On＆＃34;然后我选择WarningToggleComboBox为＆＃34; Off＆＃34;它打印出警告5次，而不是用空字符串替换它，但是当DebugToggleComboBox值为＆＃34; Off＆＃34;而WarningToggleComboBox是＆＃34;关＆＃34;它将用空字符串替换警告。

以下是我的更多理解代码：

public static void RunProgram(string file, string outdirectory, RichTextBox rtfReport, ToolStripComboBox debug, ToolStripComboBox warning, bool addNewLine)
{
    Process procUnpackFile = new Process();
    ProcessStartInfo procStartInfo1 = new ProcessStartInfo();
    procStartInfo1.RedirectStandardOutput = true;
    procStartInfo1.RedirectStandardError = true;
    procStartInfo1.UseShellExecute = false;
    procStartInfo1.CreateNoWindow = true;
    AppendText(rtfReport, "Using (" + program + ") to extract (" + Path.GetFileName(file) + ")..." + Environment.NewLine, Color.Yellow, true);
    AppendText(rtfReport, "TOOL.EXE [OUTPUT]", Color.Cyan, true);
    AppendText(rtfReport, "======================================================================================================================", Color.Teal, true);
    if (debug.Text.ToString() == "On") //If Statement for DebugComboBox
    {
        AppendText(rtfReport, "#################### DEBUG LOG ####################", Color.DarkMagenta, true);
        AppendText(rtfReport, "Command Prompt Input: (" + program + " " + file + " " + outdirectory + ")", Color.Magenta, true);
        AppendText(rtfReport, "###################################################", Color.DarkMagenta, true);
    }
    procStartInfo1.FileName = "cmd";
    procStartInfo1.WorkingDirectory = tooldir;
    procStartInfo1.Arguments = "/c " + program + " " + file + " " + outdirectory;
    procUnpackFile.StartInfo = procStartInfo1;
    try
    {
        procUnpackFile.Start();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
        if (!procUnpackFile.HasExited)
        {
            procUnpackFile.Kill();
        }
    }
    if (procUnpackFile.Responding)
    {
        string output = procUnpackFile.StandardOutput.ReadToEnd();
        string error = procUnpackFile.StandardError.ReadToEnd();
        procUnpackFile.WaitForExit();

        if (warning.Text.ToString() == "Off") //If Statement for WarningComboBox
        {
            for (int i = 0; i < 200000; i++)
            {
                if (error.Contains("0 [main] " + program + " " + i))
                {
                    error.Replace("      0 [main] " + program + " " + i + " find_fast_cwd: WARNING: Couldn't compute FAST_CWD Pointer. Please report this problem to the public mailing list cygwin@cygwin.com", "");
                    AppendText(rtfReport, error, Color.Red, true);
                }
            }
        }
        else
        {
            AppendText(rtfReport, error, Color.Red, true);
        }
        AppendText(rtfReport, output, Color.White, true);
        AppendText(rtfReport, "======================================================================================================================", Color.Teal, true);
    }
    else
    {
        if (!procUnpackFile.HasExited)
        {
            procUnpackFile.Kill();
        }
    }
}